{
  "data": {
    "a": {
      "slug": "gemini-4-carbon",
      "name": "Gemini 4 Carbon",
      "vendor": "Google",
      "vendorUrl": "https://ai.google.dev",
      "kind": "model",
      "category": "inference",
      "summary": "Gemini 4 Carbon is Google's strongest Gemini model, for long agentic coding, cybersecurity and research work, on the paid tier of the Gemini API with a 1,048,576-token limit shared between input and output.",
      "url": "https://www.anchorterminal.com/tools/gemini-4-carbon",
      "markdownUrl": "https://www.anchorterminal.com/tools/gemini-4-carbon.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/gemini-4-carbon.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/gemini-4-carbon.json",
      "dns": "gemini-4-carbon.grade.anchorterminal.com",
      "license": "Closed model, used through the Gemini API and Google's apps under Google's terms",
      "transports": [],
      "remoteUrl": "https://generativelanguage.googleapis.com/v1beta",
      "packages": [],
      "auth": "api-key",
      "authNotes": "An `x-goog-api-key` from AI Studio on a project with billing, since Carbon is on the paid tier only, per the Gemini API listing and Google's developer post. Google AI Ultra subscribers can also use it in AI Studio and Antigravity. The `gemini-4-carbon-cyber-permissive` variant needs a project approved through Google's Fairwind Program.",
      "pricing": "usage",
      "pricingNotes": "Google's announcement gives an introductory $2 per million input tokens and $10 output, cached input 95% off, then $4 and $20, with no end date for the introduction. Paid tier only, no free tier. Every processed token is billed, thinking included (checked 2026-11-10).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No machine payment. Paid use needs billing on a Cloud project, per the Gemini API listing (checked 2026-11-10).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-10"
      },
      "docsUrl": "https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/guides/gemini-4-carbon",
      "llmsTxt": "https://ai.google.dev/gemini-api/docs/llms.txt",
      "capabilities": [
        "inference.llm"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "multimodal",
        "reasoning",
        "long-context",
        "tool-calling",
        "usage-priced",
        "card-required",
        "closed-source",
        "llms-txt",
        "new"
      ],
      "lastRelease": "2026-11-10",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 62.6,
        "grade": "B",
        "agentReady": false,
        "rank": 555,
        "ranked": true,
        "rankOf": 1518,
        "categoryRank": 22,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 93,
          "maintenance": 83,
          "payments": 20,
          "reliability": 40,
          "schema": 85,
          "security": 55,
          "transparency": 72
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-10"
        },
        "negative": 0,
        "verdict": "Google's strongest model on the same Gemini API as Argon, with a 1M-token budget, function calling and structured output, at an introductory $2 and $10 per million tokens. Paid tier only, sampling parameters are ignored or refused, its launch stage isn't stated, and the price rises to $4 and $20 at a date Google hasn't given.",
        "bestFor": "Agents on the hardest long tasks (multi-step debugging, large codebases, open-ended research, security work) that can pay frontier prices and already use the Gemini API.",
        "strengths": [
          "Introductory price of $2 input and $10 output per million tokens, with cached input 95% off",
          "1,048,576 tokens shared between input and output, with long decodes for big outputs",
          "Function calling, structured output, Google Search grounding and background execution",
          "Thinking levels LOW, MEDIUM (default) and HIGH, and implicit caching on by default",
          "The same API, keys and SDKs as Gemini 4 Argon, so switching is a model ID"
        ],
        "weaknesses": [
          "Paid tier only, with no free tier to try it on",
          "temperature, top_p and top_k are ignored, and thinking_budget, MINIMAL, penalties and extra candidates return a 400",
          "No explicit context caching, and prefilled model turns aren't accepted",
          "The price goes to $4 and $20 after an introduction with no end date given",
          "Benchmark figures are Google's own, and the launch stage isn't stated"
        ],
        "agentNotes": [
          "Call generateContent at https://generativelanguage.googleapis.com/v1beta with model gemini-4-carbon and an x-goog-api-key on a billed project",
          "Set thinking_level (LOW, MEDIUM or HIGH) instead of thinking_budget, and don't send temperature, top_p or top_k",
          "Count output against the same 1,048,576-token limit as the input, and set max_output_tokens for long answers",
          "Put static prompt content first so implicit caching applies; explicit caches aren't supported",
          "Use gemini-4-argon for most coding and knowledge work, and Carbon for the hardest long tasks, as Google suggests"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 62.6
          }
        ],
        "editorialScores": {
          "ergonomics": 93,
          "maintenance": 83,
          "payments": 20,
          "reliability": 40,
          "schema": 85,
          "security": 55,
          "transparency": 55
        },
        "provenanceScore": 89,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-10",
            "maintenance": "2026-11-10",
            "payments": "2026-11-10",
            "reliability": "2026-11-10",
            "schema": "2026-11-10",
            "security": "2026-11-10",
            "transparency": "2026-11-10"
          },
          "last": "2026-11-10",
          "oldest": "2026-11-10",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl \"https://generativelanguage.googleapis.com/v1beta/models/gemini-4-carbon:generateContent\" \\\n  -H \"x-goog-api-key: $GEMINI_API_KEY\" -H \"content-type: application/json\" \\\n  -d '{\"contents\":[{\"parts\":[{\"text\":\"hello\"}]}]}'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/gemini-4-carbon"
      },
      "sameCompany": [
        "vertex-ai",
        "gemini-embedding",
        "vertex-ai-tuning",
        "cloud-run-gpus",
        "google-model-armor",
        "google-imagen",
        "google-veo",
        "google-lyria",
        "google-speech-to-text",
        "google-cloud-tts",
        "gemini-live",
        "google-adk",
        "google-memory-bank",
        "google-secret-manager",
        "google-cloud-document-ai",
        "google-weather-api",
        "chrome-devtools-mcp",
        "google-maps-platform",
        "google-cloud-translation",
        "google-calendar-api",
        "firebase-cloud-messaging",
        "google-cloud-storage",
        "google-drive-api",
        "gemini-enterprise",
        "gemini-cli",
        "google-search-console",
        "google-ads-api",
        "google-forms",
        "google-sheets-api",
        "gmail-api",
        "google-people-api"
      ],
      "sameModel": [
        "gemini-api"
      ],
      "area": "models",
      "unitPrices": [
        {
          "item": "Gemini 4 Carbon input",
          "unit": "1m-tokens",
          "usd": 2,
          "note": "Introductory; $4 after, date not given"
        },
        {
          "item": "Gemini 4 Carbon cached input",
          "unit": "1m-tokens",
          "usd": 0.1,
          "note": "95% off input"
        },
        {
          "item": "Gemini 4 Carbon output",
          "unit": "1m-tokens",
          "usd": 10,
          "note": "Introductory; $20 after"
        }
      ],
      "provenance": {
        "legalEntity": "Google LLC",
        "domain": "google.com",
        "domainRegistered": "1997-09-15",
        "domainNote": "The endpoint is on googleapis.com, Google's API domain. google.com was registered in 1997.",
        "endpointOnVendorDomain": true,
        "terms": "https://ai.google.dev/gemini-api/terms",
        "privacy": "https://policies.google.com/privacy",
        "statusPage": "https://aistudio.google.com/status",
        "changelog": "https://ai.google.dev/gemini-api/docs/changelog",
        "securityTxt": "valid",
        "checked": "2026-11-10",
        "score": 89
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/gemini-4-carbon.json",
      "live": {
        "slug": "gemini-4-carbon",
        "probe": {
          "target": "https://generativelanguage.googleapis.com/v1beta",
          "method": "get",
          "lastAt": "2026-11-10T23:47:03.904361517Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 35,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 41,
          "p95ms24h": 130,
          "samples24h": 63,
          "samples30d": 63,
          "days": [
            {
              "date": "2026-11-10",
              "probes": 63,
              "ok": 63
            }
          ],
          "since": "2026-11-10T17:42:25.910455739Z"
        },
        "vendorStatus": {
          "page": "https://aistudio.google.com/status",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-11-10T23:00:42.593790699Z"
        },
        "updatedAt": "2026-11-10T23:47:03.904361517Z"
      },
      "streak": {
        "days": 0,
        "from": "2026-11-10",
        "sinceWatching": true,
        "best": 0
      }
    },
    "answer": "Gemini 4 Carbon scores 62.6 (B) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in 5 of 7 scored categories.",
    "b": {
      "slug": "inkling-2-small",
      "name": "Inkling 2 Small",
      "vendor": "Thinking Machines Lab",
      "vendorUrl": "https://thinkingmachines.ai",
      "kind": "model",
      "category": "inference",
      "summary": "Inkling 2 Small is Thinking Machines Lab's mixture-of-experts model, 594B total and 17B active parameters, taking text and images and returning text. It runs on Tinker for inference and fine-tuning, with open weights promised.",
      "url": "https://www.anchorterminal.com/tools/inkling-2-small",
      "markdownUrl": "https://www.anchorterminal.com/tools/inkling-2-small.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/inkling-2-small.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/inkling-2-small.json",
      "dns": "inkling-2-small.grade.anchorterminal.com",
      "license": "Proprietary for now, used through Tinker under the Tinker Terms of Use and Thinking Machines' Model Acceptable Use Policy, per the model card. Thinking Machines says it will publish the weights under Apache 2.0 the week after launch, once outside safety testing is done",
      "transports": [],
      "remoteUrl": "https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1",
      "packages": [],
      "auth": "api-key",
      "authNotes": "A Tinker API key from the Tinker console, read from TINKER_API_KEY and passed as the OpenAI client's api_key on the OpenAI-compatible endpoint, or used by the Tinker Python SDK. Sign-up is a browser flow at auth.thinkingmachines.ai, and the quickstart asks for payment details in Billing before training, per the tinker listing.",
      "pricing": "usage",
      "pricingNotes": "Serverless inference (beta) is $0.30 per million input tokens, $0.03 cached and $1.00 output, at 256K context. On the training side prefill is the same $0.30, sampling $1.00, and training $1.50 per million at 64K or $3.00 at 256K. No free tier is listed (checked 2026-11-06).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 on Tinker's models and pricing page or its OpenAI-compatible API page, and Tinker bills against an account with payment details (checked 2026-11-06).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-06"
      },
      "docsUrl": "https://thinkingmachines.ai/model-card/inkling-2-small/",
      "llmsTxt": "https://tinker-docs.thinkingmachines.ai/llms.txt",
      "capabilities": [
        "inference.llm"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "moe",
        "multimodal",
        "vision",
        "reasoning",
        "openai-compatible",
        "usage-priced",
        "card-required",
        "beta",
        "llms-txt",
        "new"
      ],
      "lastRelease": "2026-11-05",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 52.1,
        "grade": "D",
        "agentReady": false,
        "rank": 1004,
        "ranked": true,
        "rankOf": 1518,
        "categoryRank": 38,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 62,
          "maintenance": 75,
          "payments": 20,
          "reliability": 30,
          "schema": 70,
          "security": 57,
          "transparency": 64
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-06"
        },
        "negative": 0,
        "verdict": "A new multimodal mixture-of-experts model from Thinking Machines, callable today through Tinker's OpenAI-compatible endpoint at $0.30 and $1.00 per million tokens, with strong vendor-reported coding and agent scores. Tinker's serverless inference is beta, with no status page or SLA, and the weights aren't public yet.",
        "bestFor": "Developers who want a capable multimodal open-family model through an OpenAI-compatible API today, or to fine-tune it on Tinker, and who can live with a beta surface until the weights are published.",
        "strengths": [
          "OpenAI-compatible chat and completions endpoint, so the OpenAI SDKs work with a Tinker key",
          "$0.30 input, $0.03 cached and $1.00 output per million tokens, published without a login",
          "Text and image input, a 256K context on Tinker and up to 1M per the model card",
          "reasoning_effort from none to xhigh or a number, with reasoning returned separately",
          "A model card with intended use, limitations, training data sources and safety testing that includes outside red-teaming",
          "Thinking Machines says Apache 2.0 weights follow a week after launch"
        ],
        "weaknesses": [
          "Serverless inference and the OpenAI-compatible API are both labelled beta, with a waitlist for higher throughput",
          "No status page, SLA or published rate limits for serverless inference",
          "Tool-calling format and structured output aren't documented for this model",
          "No free tier, and sign-up is a browser flow with payment details",
          "Benchmark results are Thinking Machines' own, with no independent results yet"
        ],
        "agentNotes": [
          "Call https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1 with an OpenAI client and TINKER_API_KEY, using /chat/completions",
          "The serverless model ID is thinkingmachines/Inkling-2-Small:peft:262144:sampling-nvfp4, per Tinker's pricing page. The OpenAI page's examples use your own checkpoint paths, so confirm it before relying on it",
          "Pass reasoning_effort as none to xhigh or 0.0 to 0.99 (default 0.9); reasoning arrives in reasoning_content unless separate_reasoning is false",
          "Keep images between 40 and 4096 px a side, per the model card",
          "Validate JSON yourself, since structured output and the tool-call format aren't documented",
          "Plan for a move to open weights. When they publish, the open-weights listing will carry sizes and runtimes"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 52.1
          }
        ],
        "editorialScores": {
          "ergonomics": 62,
          "maintenance": 75,
          "payments": 20,
          "reliability": 30,
          "schema": 70,
          "security": 57,
          "transparency": 60
        },
        "provenanceScore": 68,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-06",
            "maintenance": "2026-11-06",
            "payments": "2026-11-06",
            "reliability": "2026-11-06",
            "schema": "2026-11-06",
            "security": "2026-11-06",
            "transparency": "2026-11-06"
          },
          "last": "2026-11-06",
          "oldest": "2026-11-06",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1/chat/completions \\\n  -H \"Authorization: Bearer $TINKER_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\n    \"model\": \"thinkingmachines/Inkling-2-Small:peft:262144:sampling-nvfp4\",\n    \"messages\": [{\"role\": \"user\", \"content\": \"Hello!\"}],\n    \"reasoning_effort\": \"low\"\n  }'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/inkling-2-small"
      },
      "sameCompany": [
        "inkling",
        "inkling-small"
      ],
      "sameModel": [
        "tinker"
      ],
      "area": "models",
      "provenance": {
        "legalEntity": "Thinking Machines Lab, Inc. (named as provider on the model card)",
        "domain": "thinkingmachines.ai",
        "domainRegistered": "",
        "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.",
        "endpointOnVendorDomain": true,
        "terms": "https://thinkingmachines.ai/legal/terms/",
        "privacy": "https://thinkingmachines.ai/legal/privacy/",
        "statusPage": "",
        "changelog": "https://tinker-docs.thinkingmachines.ai/changelog/",
        "securityTxt": "valid",
        "checked": "2026-11-06",
        "notes": [
          "The launch post and model card are on thinkingmachines.ai and name Thinking Machines Lab, Inc. as provider. The OpenAI-compatible endpoint is on thinkingmachines.dev, which Tinker's own docs give as the production base URL, so it's read as a domain the vendor controls; its registration wasn't looked up.",
          "Thinking Machines' terms bar scraping the Services, which the 4 November re-check read as a ban and paused. The founder decided on 6 November 2026 that reading at a person's pace is fine, so four pages were read one at a time: the launch post, the model card, the models and pricing page and the OpenAI-compatible API page. tinker-docs.thinkingmachines.ai has no robots.txt; thinkingmachines.ai's has no rules.",
          "security.txt lists security-reports@thinkingmachines.ai and expires 2029-07-13, per the 2 November reading.",
          "No status page was found."
        ],
        "score": 68
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/inkling-2-small.json",
      "live": {
        "slug": "inkling-2-small",
        "probe": {
          "target": "https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1",
          "method": "get",
          "lastAt": "2026-11-10T23:47:07.844798205Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 422,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 408,
          "p95ms24h": 502,
          "samples24h": 244,
          "samples30d": 1157,
          "days": [
            {
              "date": "2026-11-06",
              "probes": 186,
              "ok": 186
            },
            {
              "date": "2026-11-07",
              "probes": 243,
              "ok": 243
            },
            {
              "date": "2026-11-08",
              "probes": 243,
              "ok": 243
            },
            {
              "date": "2026-11-09",
              "probes": 243,
              "ok": 243
            },
            {
              "date": "2026-11-10",
              "probes": 242,
              "ok": 242
            }
          ],
          "since": "2026-11-06T00:00:00Z"
        },
        "securityTxt": {
          "url": "https://thinkingmachines.ai/.well-known/security.txt",
          "state": "valid",
          "expires": "2029-07-13T07:00:00.000Z",
          "checkedAt": "2026-11-10T16:08:06.712462129Z"
        },
        "llmsTxt": {
          "url": "https://tinker-docs.thinkingmachines.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-10T15:43:22.437712356Z"
        },
        "domain": {
          "domain": "thinkingmachines.ai",
          "registered": "2024-07-09",
          "source": "https://rdap.identitydigital.services/rdap/domain/thinkingmachines.ai",
          "checkedAt": "2026-11-08T15:05:10.558189316Z"
        },
        "pages": [
          {
            "url": "https://tinker-docs.thinkingmachines.ai/changelog/",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-11-10T16:33:32.492954408Z",
            "changedAt": "2026-11-07T14:22:17.310423056Z",
            "fingerprint": "a3a2317910fe"
          },
          {
            "url": "https://thinkingmachines.ai/legal/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-11-10T16:33:30.586885718Z",
            "changedAt": "2026-11-06T13:43:40.660240815Z",
            "fingerprint": "3c33a4a74c61"
          },
          {
            "url": "https://thinkingmachines.ai/legal/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-11-10T16:33:32.864172695Z",
            "changedAt": "2026-11-06T13:43:42.918165055Z",
            "fingerprint": "08c6ceca5dbb"
          }
        ],
        "updatedAt": "2026-11-10T23:47:07.844798205Z"
      },
      "streak": {
        "days": 4,
        "from": "2026-11-06",
        "sinceWatching": true,
        "best": 4
      }
    },
    "edges": [
      {
        "by": 31,
        "category": "ergonomics",
        "leads": "gemini-4-carbon",
        "name": "Agent ergonomics",
        "reasons": {
          "a": "Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Function calling, with forced calls by FunctionCallingConfig on the API (20). Structured output (13 of 15). Implicit caching with durable caching on by default, cached input 95% off, explicit caches not supported, per the Cloud guide read on 10 November (15). 1,048,576 tokens shared between input and output (15). Batch at half price on the platform (10). Python and JavaScript SDKs (10). Error codes with backoff guidance (10 of 15). 20 + 13 + 15 + 15 + 10 + 10 + 10 = 93.",
          "b": "Model reading (tool use, structured output, caching, context, batch, SDKs). A 256K served context, max_tokens and a priced cache at $0.03 per million; tool use isn't documented for this model (15 of 25). Output-size controls through max_tokens, reasoning_effort and separate_reasoning (15 of 20). One documented error, the 400 for unsupported reasoning_effort (5 of 20). Stable request IDs make SDK sampling retries safe, per the tinker listing (15 of 20). OpenAI's SDKs work against the endpoint, with Tinker's Python SDK besides, and reasoning defaults to 0.9 (12 of 15). 15 + 15 + 5 + 15 + 12 = 62."
        },
        "scores": {
          "a": 93,
          "b": 62
        }
      },
      {
        "by": 15,
        "category": "schema",
        "leads": "gemini-4-carbon",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Discovery document for GenerateContent (20 of 25). llms.txt with Markdown twins (10). The Cloud developer guide says what Carbon takes and refuses, the parameters that return 400 or are ignored, and how to migrate (15 of 20). Structured output to a JSON Schema with some keywords not enforced (10 of 15). Examples and an errors page (15). Dated changelog and model versions (15). 20 + 10 + 15 + 10 + 15 + 15 = 85.",
          "b": "Model reading. No OpenAPI file of its own; the OpenAI-compatible chat and completions endpoints and the typed Python SDK are the contract, as the tinker listing reads it (15). llms.txt on the docs host, per the tinker listing's 1 October check (10). The model card states intended use (agentic and tool-use systems, coding assistants, chatbots, RAG), inputs, outputs and limitations, and the launch post its benchmarks (16 of 20). Model IDs, context lengths and the reasoning_effort values (none to xhigh, or 0.0 to 0.99) are documented; the tool-call format and structured output aren't, for this model (8 of 15). A Python example and an HTTP 400 for models without reasoning_effort, with no error page (6 of 15). A dated Tinker changelog and a model deprecations page, per the tinker listing (15). 15 + 10 + 16 + 8 + 6 + 15 = 70."
        },
        "scores": {
          "a": 85,
          "b": 70
        }
      },
      {
        "by": 10,
        "category": "reliability",
        "leads": "gemini-4-carbon",
        "name": "Reliability",
        "reasons": {
          "a": "Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Status page at aistudio.google.com/status with no readable components or history (10 of 20) and no readable incident record (5 of 30). Rate-limit tiers and spend limits published, per-model limits in AI Studio (5 of 15). Backoff guidance for 429 and 503 and SDK retries (15). No SLA (0). Carbon's launch stage isn't stated in Google's developer post, the Antigravity post or the Cloud developer guide read on 10 November, and the model ID carries no preview label, so half (5 of 10, a judgement call; Argon's GA earned the platform 10). 10 + 5 + 5 + 15 + 0 + 5 = 40.",
          "b": "Model reading, for the surface it's called on, Tinker's serverless inference and OpenAI-compatible API. No status page found, per the tinker listing's checks of 1 October and 4 November (0), so no readable incident history (5). The only published limit is the in-flight sample cap of 2,000, per the tinker listing's 1 October check; the OpenAI-compatible page gives no numbers and says higher or more stable throughput needs the waitlist (10). The SDK retries sampling with stable request IDs, per the tinker listing's reading of the SDK repository; the OpenAI-compatible page has no retry guidance (15). No SLA found (0). Serverless inference is 'currently in beta' on the models and pricing page and the OpenAI-compatible API is labelled Beta, read 6 November (0). 0 + 5 + 10 + 15 + 0 + 0 = 30."
        },
        "scores": {
          "a": 40,
          "b": 30
        }
      },
      {
        "by": 8,
        "category": "maintenance",
        "leads": "gemini-4-carbon",
        "name": "Maintenance \u0026 community",
        "reasons": {
          "a": "Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Released to developers on 10 November 2026, with the platform's changelog (30). Deprecations with earliest dates and no stated minimum notice (4 of 12). Shutdowns in the last 90 days kept to their table (4 of 8). Dated changelog (15). SDK replies not sampled (5 of 10). Current SDKs (15). Runtimes stated (10). 30 + 4 + 4 + 15 + 5 + 15 + 10 = 83.",
          "b": "Model reading. Released 5 November 2026 (30). Churn and notice in place of release counts: Inkling, Inkling-Small (30 July) and Inkling 2 Small in about four months, and a deprecations page with dated retirements and a promise to 'aim to give advance notice' by email, with no stated period, per the tinker listing (10 of 20). A public changelog and a support address and Discord, per the tinker listing (10 of 15). Current official SDKs, Tinker's Python SDK and the OpenAI-compatible endpoint (15). SDK and cookbook CI, per the tinker listing (10). 30 + 10 + 10 + 15 + 10 = 75."
        },
        "scores": {
          "a": 83,
          "b": 75
        }
      },
      {
        "by": 8,
        "category": "transparency",
        "leads": "gemini-4-carbon",
        "name": "Transparency \u0026 trust",
        "reasons": {
          "a": "Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Closed service with clear terms, SDKs Apache-2.0 (15). Paid-tier data isn't used, abuse retention has no number, and request storage is on by default for new paid projects (20 of 30). Deprecations table (15 of 20). Data may be cached anywhere Google has facilities; no subprocessor list checked (5 of 20). Every benchmark figure is Google's own. 15 + 20 + 15 + 5 = 55.",
          "b": "Editorial half. Closed for now under the Tinker Terms of Use and the Model Acceptable Use Policy, per the model card, with Apache 2.0 weights promised the week after launch (15). Terms commit not to use Customer Content for training, keep it only as needed, with a DPA and deletion on request; the privacy notice wasn't re-read, per the tinker listing (15). Dated deprecation notices with no stated period (15). The DPA annex names Google Cloud, Cloudflare, WorkOS and OpenAI with service and location (15). 15 + 15 + 15 + 15 = 60."
        },
        "scores": {
          "a": 72,
          "b": 64
        }
      }
    ],
    "facts": [
      {
        "a": "Model API",
        "b": "Model API",
        "name": "Kind"
      },
      {
        "a": "Google",
        "b": "Thinking Machines Lab",
        "name": "Vendor"
      },
      {
        "a": "https://generativelanguage.googleapis.com/v1beta",
        "b": "https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Closed model, used through the Gemini API and Google's apps under Google's terms",
        "b": "Proprietary for now, used through Tinker under the Tinker Terms of Use and Thinking Machines' Model Acceptable Use Policy, per the model card. Thinking Machines says it will publish the weights under Apache 2.0 the week after launch, once outside safety testing is done",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-11-10",
        "b": "2026-11-05",
        "name": "Last release"
      },
      {
        "a": "2026-04-28",
        "b": "not read yet",
        "name": "Terms last updated"
      },
      {
        "a": "2026-10-01",
        "b": "not read yet",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes",
        "b": "not read yet",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not read yet",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not read yet",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "not read yet",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not read yet",
        "name": "Arbitration or class-action waiver"
      }
    ],
    "faq": [
      {
        "answer": "Gemini 4 Carbon scores 62.6 (B) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in 5 of 7 scored categories.",
        "question": "Which is better for AI agents, Gemini 4 Carbon or Inkling 2 Small?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Gemini 4 Carbon and Inkling 2 Small need an API key?"
      },
      {
        "answer": "Yes. Gemini 4 Carbon has a hosted endpoint at https://generativelanguage.googleapis.com/v1beta and Inkling 2 Small at https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1.",
        "question": "Can an agent call Gemini 4 Carbon and Inkling 2 Small without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 40 against 30",
          "Schema \u0026 documentation, 85 against 70",
          "Agent ergonomics, 93 against 62",
          "Maintenance \u0026 community, 83 against 75",
          "Transparency \u0026 trust, 72 against 64"
        ],
        "also": null,
        "goodFor": "Agents on the hardest long tasks (multi-step debugging, large codebases, open-ended research, security work) that can pay frontier prices and already use the Gemini API.",
        "slug": "gemini-4-carbon",
        "watchFor": "Paid tier only, with no free tier to try it on"
      },
      {
        "aheadOn": null,
        "also": null,
        "goodFor": "Developers who want a capable multimodal open-family model through an OpenAI-compatible API today, or to fine-tune it on Tinker, and who can live with a beta surface until the weights are published.",
        "slug": "inkling-2-small",
        "watchFor": "Serverless inference and the OpenAI-compatible API are both labelled beta, with a waitlist for higher throughput"
      }
    ],
    "history": null,
    "job": {
      "capability": "inference.llm",
      "name": "LLM inference"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/amazon-bedrock-vs-gemini-4-carbon.json",
        "title": "Amazon Bedrock vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/amazon-bedrock-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-bedrock-vs-inkling-2-small.json",
        "title": "Amazon Bedrock vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/amazon-bedrock-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-4-carbon.json",
        "title": "Claude API vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-inkling-2-small.json",
        "title": "Claude API vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antseed-vs-gemini-4-carbon.json",
        "title": "Antseed vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/antseed-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antseed-vs-inkling-2-small.json",
        "title": "Antseed vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/antseed-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/azure-openai-vs-gemini-4-carbon.json",
        "title": "Azure OpenAI in Foundry Models vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/azure-openai-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/azure-openai-vs-inkling-2-small.json",
        "title": "Azure OpenAI in Foundry Models vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/azure-openai-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/blockrun-ai-vs-gemini-4-carbon.json",
        "title": "BlockRun.AI vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/blockrun-ai-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/blockrun-ai-vs-inkling-2-small.json",
        "title": "BlockRun.AI vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/blockrun-ai-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-4-carbon.json",
        "title": "Cerebras Inference vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-inkling-2-small.json",
        "title": "Cerebras Inference vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-fable-5-2-vs-gemini-4-carbon.json",
        "title": "Claude Fable 5.2 vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/claude-fable-5-2-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-fable-5-2-vs-inkling-2-small.json",
        "title": "Claude Fable 5.2 vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/claude-fable-5-2-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-gemini-4-carbon.json",
        "title": "Claude Mythos 5.2 vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-inkling-2-small.json",
        "title": "Claude Mythos 5.2 vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-gemini-4-carbon.json",
        "title": "Cloudflare AI Gateway vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-inkling-2-small.json",
        "title": "Cloudflare AI Gateway vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-gemini-4-carbon.json",
        "title": "Cloudflare Workers AI vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-inkling-2-small.json",
        "title": "Cloudflare Workers AI vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cohere-chat-vs-gemini-4-carbon.json",
        "title": "Cohere Chat API (Command models) vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/cohere-chat-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cohere-chat-vs-inkling-2-small.json",
        "title": "Cohere Chat API (Command models) vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/cohere-chat-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepinfra-vs-gemini-4-carbon.json",
        "title": "DeepInfra vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/deepinfra-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepinfra-vs-inkling-2-small.json",
        "title": "DeepInfra vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/deepinfra-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-api-vs-gemini-4-carbon.json",
        "title": "DeepSeek API vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/deepseek-api-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-api-vs-inkling-2-small.json",
        "title": "DeepSeek API vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/deepseek-api-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/eden-ai-vs-gemini-4-carbon.json",
        "title": "Eden AI vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/eden-ai-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/eden-ai-vs-inkling-2-small.json",
        "title": "Eden AI vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/eden-ai-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elorian-glimpse-vs-gemini-4-carbon.json",
        "title": "Glimpse vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/elorian-glimpse-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elorian-glimpse-vs-inkling-2-small.json",
        "title": "Glimpse vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/elorian-glimpse-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fireworks-inference-vs-gemini-4-carbon.json",
        "title": "Fireworks AI Inference vs Gemini 4 Carbon",
        "url": "https://www.anchorterminal.com/compare/fireworks-inference-vs-gemini-4-carbon"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fireworks-inference-vs-inkling-2-small.json",
        "title": "Fireworks AI Inference vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/fireworks-inference-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-gemini-api.json",
        "title": "Gemini 4 Carbon vs Gemini Developer API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-gemini-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-groq.json",
        "title": "Gemini 4 Carbon vs GroqCloud",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-groq"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-hugging-face-inference-providers.json",
        "title": "Gemini 4 Carbon vs Hugging Face Inference Providers",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-hugging-face-inference-providers"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-jais-3.json",
        "title": "Gemini 4 Carbon vs Jais 3",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-jais-3"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-meta-model-api.json",
        "title": "Gemini 4 Carbon vs Meta Model API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-meta-model-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-minimax-api.json",
        "title": "Gemini 4 Carbon vs MiniMax API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-minimax-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-mistral-api.json",
        "title": "Gemini 4 Carbon vs Mistral AI API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-mistral-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-ember.json",
        "title": "Gemini 4 Carbon vs Muse Ember",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-ember"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-spark-open.json",
        "title": "Gemini 4 Carbon vs Muse Spark Open",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-spark-open"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-nemotron-3-5-super-vl.json",
        "title": "Gemini 4 Carbon vs Nemotron 3.5 Super VL",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-nemotron-3-5-super-vl"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-novita-ai.json",
        "title": "Gemini 4 Carbon vs Novita AI",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-novita-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openai-api.json",
        "title": "Gemini 4 Carbon vs OpenAI API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openai-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openrouter.json",
        "title": "Gemini 4 Carbon vs OpenRouter",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-prism-inference.json",
        "title": "Gemini 4 Carbon vs Prism Inference",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-prism-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-ramp-router.json",
        "title": "Gemini 4 Carbon vs Router.com (Ramp Router)",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-ramp-router"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-reflection-beam.json",
        "title": "Gemini 4 Carbon vs Beam 1.0",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-reflection-beam"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-routerplus.json",
        "title": "Gemini 4 Carbon vs RouterPlus",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-routerplus"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-sambanova.json",
        "title": "Gemini 4 Carbon vs SambaCloud",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-sambanova"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-siliconflow.json",
        "title": "Gemini 4 Carbon vs SiliconFlow",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-siliconflow"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-simplismart.json",
        "title": "Gemini 4 Carbon vs Simplismart",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-simplismart"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-stepfun-api.json",
        "title": "Gemini 4 Carbon vs StepFun API",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-stepfun-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-swe-2-flash.json",
        "title": "Gemini 4 Carbon vs SWE-2 Flash",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-swe-2-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-tencent-tokenhub.json",
        "title": "Gemini 4 Carbon vs Tencent Cloud TokenHub",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-tencent-tokenhub"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-together-inference.json",
        "title": "Gemini 4 Carbon vs Together AI Inference",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-together-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vercel-ai-gateway.json",
        "title": "Gemini 4 Carbon vs Vercel AI Gateway",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vercel-ai-gateway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vertex-ai.json",
        "title": "Gemini 4 Carbon vs Vertex AI (Gemini Enterprise Agent Platform)",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vertex-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-xai-api.json",
        "title": "Gemini 4 Carbon vs xAI API (Grok)",
        "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-xai-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-api-vs-inkling-2-small.json",
        "title": "Gemini Developer API vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/gemini-api-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groq-vs-inkling-2-small.json",
        "title": "GroqCloud vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/groq-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/hugging-face-inference-providers-vs-inkling-2-small.json",
        "title": "Hugging Face Inference Providers vs Inkling 2 Small",
        "url": "https://www.anchorterminal.com/compare/hugging-face-inference-providers-vs-inkling-2-small"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-jais-3.json",
        "title": "Inkling 2 Small vs Jais 3",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-jais-3"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-meta-model-api.json",
        "title": "Inkling 2 Small vs Meta Model API",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-meta-model-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-minimax-api.json",
        "title": "Inkling 2 Small vs MiniMax API",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-minimax-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-mistral-api.json",
        "title": "Inkling 2 Small vs Mistral AI API",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-mistral-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-ember.json",
        "title": "Inkling 2 Small vs Muse Ember",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-ember"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-spark-open.json",
        "title": "Inkling 2 Small vs Muse Spark Open",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-spark-open"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-nemotron-3-5-super-vl.json",
        "title": "Inkling 2 Small vs Nemotron 3.5 Super VL",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-nemotron-3-5-super-vl"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-novita-ai.json",
        "title": "Inkling 2 Small vs Novita AI",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-novita-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-openai-api.json",
        "title": "Inkling 2 Small vs OpenAI API",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-openai-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-openrouter.json",
        "title": "Inkling 2 Small vs OpenRouter",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-openrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-prism-inference.json",
        "title": "Inkling 2 Small vs Prism Inference",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-prism-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-ramp-router.json",
        "title": "Inkling 2 Small vs Router.com (Ramp Router)",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-ramp-router"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-reflection-beam.json",
        "title": "Inkling 2 Small vs Beam 1.0",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-reflection-beam"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-routerplus.json",
        "title": "Inkling 2 Small vs RouterPlus",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-routerplus"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-sambanova.json",
        "title": "Inkling 2 Small vs SambaCloud",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-sambanova"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-siliconflow.json",
        "title": "Inkling 2 Small vs SiliconFlow",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-siliconflow"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-simplismart.json",
        "title": "Inkling 2 Small vs Simplismart",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-simplismart"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-stepfun-api.json",
        "title": "Inkling 2 Small vs StepFun API",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-stepfun-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-swe-2-flash.json",
        "title": "Inkling 2 Small vs SWE-2 Flash",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-swe-2-flash"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-tencent-tokenhub.json",
        "title": "Inkling 2 Small vs Tencent Cloud TokenHub",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-tencent-tokenhub"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-together-inference.json",
        "title": "Inkling 2 Small vs Together AI Inference",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-together-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-vercel-ai-gateway.json",
        "title": "Inkling 2 Small vs Vercel AI Gateway",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-vercel-ai-gateway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-vertex-ai.json",
        "title": "Inkling 2 Small vs Vertex AI (Gemini Enterprise Agent Platform)",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-vertex-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inkling-2-small-vs-xai-api.json",
        "title": "Inkling 2 Small vs xAI API (Grok)",
        "url": "https://www.anchorterminal.com/compare/inkling-2-small-vs-xai-api"
      }
    ],
    "panel": null,
    "scores": [
      {
        "by": 10,
        "edge": "gemini-4-carbon",
        "gemini-4-carbon": 40,
        "inkling-2-small": 30,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 15,
        "edge": "gemini-4-carbon",
        "gemini-4-carbon": 85,
        "inkling-2-small": 70,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 31,
        "edge": "gemini-4-carbon",
        "gemini-4-carbon": 93,
        "inkling-2-small": 62,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 2,
        "edge": "inkling-2-small",
        "gemini-4-carbon": 55,
        "inkling-2-small": 57,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 0,
        "edge": "",
        "gemini-4-carbon": 20,
        "inkling-2-small": 20,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 8,
        "edge": "gemini-4-carbon",
        "gemini-4-carbon": 83,
        "inkling-2-small": 75,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 8,
        "edge": "gemini-4-carbon",
        "gemini-4-carbon": 72,
        "inkling-2-small": 64,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Gemini 4 Carbon scores 62.6 (B) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in 5 of 7 scored categories. Both do llm inference.",
    "tasks": null,
    "tutorials": [],
    "verdicts": {
      "gemini-4-carbon": "Google's strongest model on the same Gemini API as Argon, with a 1M-token budget, function calling and structured output, at an introductory $2 and $10 per million tokens. Paid tier only, sampling parameters are ignored or refused, its launch stage isn't stated, and the price rises to $4 and $20 at a date Google hasn't given.",
      "inkling-2-small": "A new multimodal mixture-of-experts model from Thinking Machines, callable today through Tinker's OpenAI-compatible endpoint at $0.30 and $1.00 per million tokens, with strong vendor-reported coding and agent scores. Tinker's serverless inference is beta, with no status page or SLA, and the weights aren't public yet."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small",
    "json": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small.min.md"
  },
  "markdown": "Gemini 4 Carbon scores 62.6 (B) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in 5 of 7 scored categories. Both do llm inference.\n\n- Gemini 4 Carbon: grade B, 62.6/100, rank #555 of 1518. Markdown https://www.anchorterminal.com/tools/gemini-4-carbon.md · JSON https://www.anchorterminal.com/api/v1/tools/gemini-4-carbon.json\n- Inkling 2 Small: grade D, 52.1/100, rank #1004 of 1518. Markdown https://www.anchorterminal.com/tools/inkling-2-small.md · JSON https://www.anchorterminal.com/api/v1/tools/inkling-2-small.json\n- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md\n- All 1000 models comparisons: https://www.anchorterminal.com/compare/inference/index.md\n\n## Which one, for what\n\n### Gemini 4 Carbon (B)\n\nGood for: Agents on the hardest long tasks (multi-step debugging, large codebases, open-ended research, security work) that can pay frontier prices and already use the Gemini API.\n\nAhead on:\n- Reliability, 40 against 30\n- Schema \u0026 documentation, 85 against 70\n- Agent ergonomics, 93 against 62\n- Maintenance \u0026 community, 83 against 75\n- Transparency \u0026 trust, 72 against 64\n\nWatch for: Paid tier only, with no free tier to try it on\n\n### Inkling 2 Small (D)\n\nGood for: Developers who want a capable multimodal open-family model through an OpenAI-compatible API today, or to fine-tune it on Tinker, and who can live with a beta surface until the weights are published.\n\nWatch for: Serverless inference and the OpenAI-compatible API are both labelled beta, with a waitlist for higher throughput\n\n\n## Why the edge\n\n### Agent ergonomics: Gemini 4 Carbon +31\n\n- Gemini 4 Carbon (93): Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Function calling, with forced calls by FunctionCallingConfig on the API (20). Structured output (13 of 15). Implicit caching with durable caching on by default, cached input 95% off, explicit caches not supported, per the Cloud guide read on 10 November (15). 1,048,576 tokens shared between input and output (15). Batch at half price on the platform (10). Python and JavaScript SDKs (10). Error codes with backoff guidance (10 of 15). 20 + 13 + 15 + 15 + 10 + 10 + 10 = 93.\n- Inkling 2 Small (62): Model reading (tool use, structured output, caching, context, batch, SDKs). A 256K served context, max_tokens and a priced cache at $0.03 per million; tool use isn't documented for this model (15 of 25). Output-size controls through max_tokens, reasoning_effort and separate_reasoning (15 of 20). One documented error, the 400 for unsupported reasoning_effort (5 of 20). Stable request IDs make SDK sampling retries safe, per the tinker listing (15 of 20). OpenAI's SDKs work against the endpoint, with Tinker's Python SDK besides, and reasoning defaults to 0.9 (12 of 15). 15 + 15 + 5 + 15 + 12 = 62.\n\n### Schema \u0026 documentation: Gemini 4 Carbon +15\n\n- Gemini 4 Carbon (85): Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Discovery document for GenerateContent (20 of 25). llms.txt with Markdown twins (10). The Cloud developer guide says what Carbon takes and refuses, the parameters that return 400 or are ignored, and how to migrate (15 of 20). Structured output to a JSON Schema with some keywords not enforced (10 of 15). Examples and an errors page (15). Dated changelog and model versions (15). 20 + 10 + 15 + 10 + 15 + 15 = 85.\n- Inkling 2 Small (70): Model reading. No OpenAPI file of its own; the OpenAI-compatible chat and completions endpoints and the typed Python SDK are the contract, as the tinker listing reads it (15). llms.txt on the docs host, per the tinker listing's 1 October check (10). The model card states intended use (agentic and tool-use systems, coding assistants, chatbots, RAG), inputs, outputs and limitations, and the launch post its benchmarks (16 of 20). Model IDs, context lengths and the reasoning_effort values (none to xhigh, or 0.0 to 0.99) are documented; the tool-call format and structured output aren't, for this model (8 of 15). A Python example and an HTTP 400 for models without reasoning_effort, with no error page (6 of 15). A dated Tinker changelog and a model deprecations page, per the tinker listing (15). 15 + 10 + 16 + 8 + 6 + 15 = 70.\n\n### Reliability: Gemini 4 Carbon +10\n\n- Gemini 4 Carbon (40): Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Status page at aistudio.google.com/status with no readable components or history (10 of 20) and no readable incident record (5 of 30). Rate-limit tiers and spend limits published, per-model limits in AI Studio (5 of 15). Backoff guidance for 429 and 503 and SDK retries (15). No SLA (0). Carbon's launch stage isn't stated in Google's developer post, the Antigravity post or the Cloud developer guide read on 10 November, and the model ID carries no preview label, so half (5 of 10, a judgement call; Argon's GA earned the platform 10). 10 + 5 + 5 + 15 + 0 + 5 = 40.\n- Inkling 2 Small (30): Model reading, for the surface it's called on, Tinker's serverless inference and OpenAI-compatible API. No status page found, per the tinker listing's checks of 1 October and 4 November (0), so no readable incident history (5). The only published limit is the in-flight sample cap of 2,000, per the tinker listing's 1 October check; the OpenAI-compatible page gives no numbers and says higher or more stable throughput needs the waitlist (10). The SDK retries sampling with stable request IDs, per the tinker listing's reading of the SDK repository; the OpenAI-compatible page has no retry guidance (15). No SLA found (0). Serverless inference is 'currently in beta' on the models and pricing page and the OpenAI-compatible API is labelled Beta, read 6 November (0). 0 + 5 + 10 + 15 + 0 + 0 = 30.\n\n### Maintenance \u0026 community: Gemini 4 Carbon +8\n\n- Gemini 4 Carbon (83): Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Released to developers on 10 November 2026, with the platform's changelog (30). Deprecations with earliest dates and no stated minimum notice (4 of 12). Shutdowns in the last 90 days kept to their table (4 of 8). Dated changelog (15). SDK replies not sampled (5 of 10). Current SDKs (15). Runtimes stated (10). 30 + 4 + 4 + 15 + 5 + 15 + 10 = 83.\n- Inkling 2 Small (75): Model reading. Released 5 November 2026 (30). Churn and notice in place of release counts: Inkling, Inkling-Small (30 July) and Inkling 2 Small in about four months, and a deprecations page with dated retirements and a promise to 'aim to give advance notice' by email, with no stated period, per the tinker listing (10 of 20). A public changelog and a support address and Discord, per the tinker listing (10 of 15). Current official SDKs, Tinker's Python SDK and the OpenAI-compatible endpoint (15). SDK and cookbook CI, per the tinker listing (10). 30 + 10 + 10 + 15 + 10 = 75.\n\n### Transparency \u0026 trust: Gemini 4 Carbon +8\n\n- Gemini 4 Carbon (72): Model reading for gemini-4-carbon on the Gemini API. Platform facts are the Gemini API listing's (gemini-api, re-read 1 November), carried over as RULES.md allows for a model on an already graded platform. Closed service with clear terms, SDKs Apache-2.0 (15). Paid-tier data isn't used, abuse retention has no number, and request storage is on by default for new paid projects (20 of 30). Deprecations table (15 of 20). Data may be cached anywhere Google has facilities; no subprocessor list checked (5 of 20). Every benchmark figure is Google's own. 15 + 20 + 15 + 5 = 55.\n- Inkling 2 Small (64): Editorial half. Closed for now under the Tinker Terms of Use and the Model Acceptable Use Policy, per the model card, with Apache 2.0 weights promised the week after launch (15). Terms commit not to use Customer Content for training, keep it only as needed, with a DPA and deletion on request; the privacy notice wasn't re-read, per the tinker listing (15). Dated deprecation notices with no stated period (15). The DPA annex names Google Cloud, Cloudflare, WorkOS and OpenAI with service and location (15). 15 + 15 + 15 + 15 = 60.\n\n## Score by category\n\n| Category | Weight | Gemini 4 Carbon | Inkling 2 Small | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 40 | 30 | Gemini 4 Carbon +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 85 | 70 | Gemini 4 Carbon +15 |\n| Agent ergonomics | 13% (16.2 this run) | 93 | 62 | Gemini 4 Carbon +31 |\n| Security \u0026 auth | 14% (17.5 this run) | 55 | 57 | Inkling 2 Small +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 20 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 83 | 75 | Gemini 4 Carbon +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 72 | 64 | Gemini 4 Carbon +8 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **62.6 · B** | **52.1 · D** | |\n\n## Facts side by side\n\n| Fact | Gemini 4 Carbon | Inkling 2 Small |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Google | Thinking Machines Lab |\n| Hosted endpoint | `https://generativelanguage.googleapis.com/v1beta` | `https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1` |\n| Transports |  |  |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Closed model, used through the Gemini API and Google's apps under Google's terms | Proprietary for now, used through Tinker under the Tinker Terms of Use and Thinking Machines' Model Acceptable Use Policy, per the model card. Thinking Machines says it will publish the weights under Apache 2.0 the week after launch, once outside safety testing is done |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-11-10 | 2026-11-05 |\n| Terms last updated | 2026-04-28 | not read yet |\n| Privacy policy last updated | 2026-10-01 | not read yet |\n| Customer content may train models | yes | not read yet |\n| Terms restrict automated access | yes | not read yet |\n| Terms restrict benchmarking | yes | not read yet |\n| Terms or service can change without notice | not found in the text | not read yet |\n| Arbitration or class-action waiver | not found in the text | not read yet |\n\n## Verdicts\n\n**Gemini 4 Carbon.** Google's strongest model on the same Gemini API as Argon, with a 1M-token budget, function calling and structured output, at an introductory $2 and $10 per million tokens. Paid tier only, sampling parameters are ignored or refused, its launch stage isn't stated, and the price rises to $4 and $20 at a date Google hasn't given.\n\n**Inkling 2 Small.** A new multimodal mixture-of-experts model from Thinking Machines, callable today through Tinker's OpenAI-compatible endpoint at $0.30 and $1.00 per million tokens, with strong vendor-reported coding and agent scores. Tinker's serverless inference is beta, with no status page or SLA, and the weights aren't public yet.\n\n## Before you call either\n\n### Gemini 4 Carbon\n\n1. Call generateContent at https://generativelanguage.googleapis.com/v1beta with model gemini-4-carbon and an x-goog-api-key on a billed project\n2. Set thinking_level (LOW, MEDIUM or HIGH) instead of thinking_budget, and don't send temperature, top_p or top_k\n3. Count output against the same 1,048,576-token limit as the input, and set max_output_tokens for long answers\n4. Put static prompt content first so implicit caching applies; explicit caches aren't supported\n5. Use gemini-4-argon for most coding and knowledge work, and Carbon for the hardest long tasks, as Google suggests\n\n### Inkling 2 Small\n\n1. Call https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1 with an OpenAI client and TINKER_API_KEY, using /chat/completions\n2. The serverless model ID is thinkingmachines/Inkling-2-Small:peft:262144:sampling-nvfp4, per Tinker's pricing page. The OpenAI page's examples use your own checkpoint paths, so confirm it before relying on it\n3. Pass reasoning_effort as none to xhigh or 0.0 to 0.99 (default 0.9); reasoning arrives in reasoning_content unless separate_reasoning is false\n4. Keep images between 40 and 4096 px a side, per the model card\n5. Validate JSON yourself, since structured output and the tool-call format aren't documented\n6. Plan for a move to open weights. When they publish, the open-weights listing will carry sizes and runtimes\n\n## Questions\n\n### Which is better for AI agents, Gemini 4 Carbon or Inkling 2 Small?\n\nGemini 4 Carbon scores 62.6 (B) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in 5 of 7 scored categories.\n\n### Do Gemini 4 Carbon and Inkling 2 Small need an API key?\n\nBoth need an API key.\n\n### Can an agent call Gemini 4 Carbon and Inkling 2 Small without installing anything?\n\nYes. Gemini 4 Carbon has a hosted endpoint at https://generativelanguage.googleapis.com/v1beta and Inkling 2 Small at https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"gemini-4-carbon\", \"b\": \"inkling-2-small\"}`. From a terminal: `anchor compare gemini-4-carbon inkling-2-small`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gemini-4-carbon.json and https://www.anchorterminal.com/api/v1/tools/inkling-2-small.json\n\n## Other comparisons with Gemini 4 Carbon or Inkling 2 Small\n\n- [Amazon Bedrock vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/amazon-bedrock-vs-gemini-4-carbon.md)\n- [Amazon Bedrock vs Inkling 2 Small](https://www.anchorterminal.com/compare/amazon-bedrock-vs-inkling-2-small.md)\n- [Claude API vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-4-carbon.md)\n- [Claude API vs Inkling 2 Small](https://www.anchorterminal.com/compare/anthropic-api-vs-inkling-2-small.md)\n- [Antseed vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/antseed-vs-gemini-4-carbon.md)\n- [Antseed vs Inkling 2 Small](https://www.anchorterminal.com/compare/antseed-vs-inkling-2-small.md)\n- [Azure OpenAI in Foundry Models vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/azure-openai-vs-gemini-4-carbon.md)\n- [Azure OpenAI in Foundry Models vs Inkling 2 Small](https://www.anchorterminal.com/compare/azure-openai-vs-inkling-2-small.md)\n- [BlockRun.AI vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/blockrun-ai-vs-gemini-4-carbon.md)\n- [BlockRun.AI vs Inkling 2 Small](https://www.anchorterminal.com/compare/blockrun-ai-vs-inkling-2-small.md)\n- [Cerebras Inference vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-4-carbon.md)\n- [Cerebras Inference vs Inkling 2 Small](https://www.anchorterminal.com/compare/cerebras-inference-vs-inkling-2-small.md)\n- [Claude Fable 5.2 vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/claude-fable-5-2-vs-gemini-4-carbon.md)\n- [Claude Fable 5.2 vs Inkling 2 Small](https://www.anchorterminal.com/compare/claude-fable-5-2-vs-inkling-2-small.md)\n- [Claude Mythos 5.2 vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-gemini-4-carbon.md)\n- [Claude Mythos 5.2 vs Inkling 2 Small](https://www.anchorterminal.com/compare/claude-mythos-5-2-vs-inkling-2-small.md)\n- [Cloudflare AI Gateway vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-gemini-4-carbon.md)\n- [Cloudflare AI Gateway vs Inkling 2 Small](https://www.anchorterminal.com/compare/cloudflare-ai-gateway-vs-inkling-2-small.md)\n- [Cloudflare Workers AI vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-gemini-4-carbon.md)\n- [Cloudflare Workers AI vs Inkling 2 Small](https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-inkling-2-small.md)\n- [Cohere Chat API (Command models) vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/cohere-chat-vs-gemini-4-carbon.md)\n- [Cohere Chat API (Command models) vs Inkling 2 Small](https://www.anchorterminal.com/compare/cohere-chat-vs-inkling-2-small.md)\n- [DeepInfra vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/deepinfra-vs-gemini-4-carbon.md)\n- [DeepInfra vs Inkling 2 Small](https://www.anchorterminal.com/compare/deepinfra-vs-inkling-2-small.md)\n- [DeepSeek API vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/deepseek-api-vs-gemini-4-carbon.md)\n- [DeepSeek API vs Inkling 2 Small](https://www.anchorterminal.com/compare/deepseek-api-vs-inkling-2-small.md)\n- [Eden AI vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/eden-ai-vs-gemini-4-carbon.md)\n- [Eden AI vs Inkling 2 Small](https://www.anchorterminal.com/compare/eden-ai-vs-inkling-2-small.md)\n- [Glimpse vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/elorian-glimpse-vs-gemini-4-carbon.md)\n- [Glimpse vs Inkling 2 Small](https://www.anchorterminal.com/compare/elorian-glimpse-vs-inkling-2-small.md)\n- [Fireworks AI Inference vs Gemini 4 Carbon](https://www.anchorterminal.com/compare/fireworks-inference-vs-gemini-4-carbon.md)\n- [Fireworks AI Inference vs Inkling 2 Small](https://www.anchorterminal.com/compare/fireworks-inference-vs-inkling-2-small.md)\n- [Gemini 4 Carbon vs Gemini Developer API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-gemini-api.md)\n- [Gemini 4 Carbon vs GroqCloud](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-groq.md)\n- [Gemini 4 Carbon vs Hugging Face Inference Providers](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-hugging-face-inference-providers.md)\n- [Gemini 4 Carbon vs Jais 3](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-jais-3.md)\n- [Gemini 4 Carbon vs Meta Model API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-meta-model-api.md)\n- [Gemini 4 Carbon vs MiniMax API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-minimax-api.md)\n- [Gemini 4 Carbon vs Mistral AI API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-mistral-api.md)\n- [Gemini 4 Carbon vs Muse Ember](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-ember.md)\n- [Gemini 4 Carbon vs Muse Spark Open](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-muse-spark-open.md)\n- [Gemini 4 Carbon vs Nemotron 3.5 Super VL](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-nemotron-3-5-super-vl.md)\n- [Gemini 4 Carbon vs Novita AI](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-novita-ai.md)\n- [Gemini 4 Carbon vs OpenAI API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openai-api.md)\n- [Gemini 4 Carbon vs OpenRouter](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-openrouter.md)\n- [Gemini 4 Carbon vs Prism Inference](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-prism-inference.md)\n- [Gemini 4 Carbon vs Router.com (Ramp Router)](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-ramp-router.md)\n- [Gemini 4 Carbon vs Beam 1.0](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-reflection-beam.md)\n- [Gemini 4 Carbon vs RouterPlus](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-routerplus.md)\n- [Gemini 4 Carbon vs SambaCloud](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-sambanova.md)\n- [Gemini 4 Carbon vs SiliconFlow](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-siliconflow.md)\n- [Gemini 4 Carbon vs Simplismart](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-simplismart.md)\n- [Gemini 4 Carbon vs StepFun API](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-stepfun-api.md)\n- [Gemini 4 Carbon vs SWE-2 Flash](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-swe-2-flash.md)\n- [Gemini 4 Carbon vs Tencent Cloud TokenHub](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-tencent-tokenhub.md)\n- [Gemini 4 Carbon vs Together AI Inference](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-together-inference.md)\n- [Gemini 4 Carbon vs Vercel AI Gateway](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vercel-ai-gateway.md)\n- [Gemini 4 Carbon vs Vertex AI (Gemini Enterprise Agent Platform)](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-vertex-ai.md)\n- [Gemini 4 Carbon vs xAI API (Grok)](https://www.anchorterminal.com/compare/gemini-4-carbon-vs-xai-api.md)\n- [Gemini Developer API vs Inkling 2 Small](https://www.anchorterminal.com/compare/gemini-api-vs-inkling-2-small.md)\n- [GroqCloud vs Inkling 2 Small](https://www.anchorterminal.com/compare/groq-vs-inkling-2-small.md)\n- [Hugging Face Inference Providers vs Inkling 2 Small](https://www.anchorterminal.com/compare/hugging-face-inference-providers-vs-inkling-2-small.md)\n- [Inkling 2 Small vs Jais 3](https://www.anchorterminal.com/compare/inkling-2-small-vs-jais-3.md)\n- [Inkling 2 Small vs Meta Model API](https://www.anchorterminal.com/compare/inkling-2-small-vs-meta-model-api.md)\n- [Inkling 2 Small vs MiniMax API](https://www.anchorterminal.com/compare/inkling-2-small-vs-minimax-api.md)\n- [Inkling 2 Small vs Mistral AI API](https://www.anchorterminal.com/compare/inkling-2-small-vs-mistral-api.md)\n- [Inkling 2 Small vs Muse Ember](https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-ember.md)\n- [Inkling 2 Small vs Muse Spark Open](https://www.anchorterminal.com/compare/inkling-2-small-vs-muse-spark-open.md)\n- [Inkling 2 Small vs Nemotron 3.5 Super VL](https://www.anchorterminal.com/compare/inkling-2-small-vs-nemotron-3-5-super-vl.md)\n- [Inkling 2 Small vs Novita AI](https://www.anchorterminal.com/compare/inkling-2-small-vs-novita-ai.md)\n- [Inkling 2 Small vs OpenAI API](https://www.anchorterminal.com/compare/inkling-2-small-vs-openai-api.md)\n- [Inkling 2 Small vs OpenRouter](https://www.anchorterminal.com/compare/inkling-2-small-vs-openrouter.md)\n- [Inkling 2 Small vs Prism Inference](https://www.anchorterminal.com/compare/inkling-2-small-vs-prism-inference.md)\n- [Inkling 2 Small vs Router.com (Ramp Router)](https://www.anchorterminal.com/compare/inkling-2-small-vs-ramp-router.md)\n- [Inkling 2 Small vs Beam 1.0](https://www.anchorterminal.com/compare/inkling-2-small-vs-reflection-beam.md)\n- [Inkling 2 Small vs RouterPlus](https://www.anchorterminal.com/compare/inkling-2-small-vs-routerplus.md)\n- [Inkling 2 Small vs SambaCloud](https://www.anchorterminal.com/compare/inkling-2-small-vs-sambanova.md)\n- [Inkling 2 Small vs SiliconFlow](https://www.anchorterminal.com/compare/inkling-2-small-vs-siliconflow.md)\n- [Inkling 2 Small vs Simplismart](https://www.anchorterminal.com/compare/inkling-2-small-vs-simplismart.md)\n- [Inkling 2 Small vs StepFun API](https://www.anchorterminal.com/compare/inkling-2-small-vs-stepfun-api.md)\n- [Inkling 2 Small vs SWE-2 Flash](https://www.anchorterminal.com/compare/inkling-2-small-vs-swe-2-flash.md)\n- [Inkling 2 Small vs Tencent Cloud TokenHub](https://www.anchorterminal.com/compare/inkling-2-small-vs-tencent-tokenhub.md)\n- [Inkling 2 Small vs Together AI Inference](https://www.anchorterminal.com/compare/inkling-2-small-vs-together-inference.md)\n- [Inkling 2 Small vs Vercel AI Gateway](https://www.anchorterminal.com/compare/inkling-2-small-vs-vercel-ai-gateway.md)\n- [Inkling 2 Small vs Vertex AI (Gemini Enterprise Agent Platform)](https://www.anchorterminal.com/compare/inkling-2-small-vs-vertex-ai.md)\n- [Inkling 2 Small vs xAI API (Grok)](https://www.anchorterminal.com/compare/inkling-2-small-vs-xai-api.md)\n",
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "attributionRequired": true,
    "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-11-10",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.7",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run",
    "terms": "https://www.anchorterminal.com/terms/#data"
  },
  "page": {
    "breadcrumbs": [
      {
        "name": "Home",
        "url": "https://www.anchorterminal.com/"
      },
      {
        "name": "Compare",
        "url": "https://www.anchorterminal.com/compare/"
      },
      {
        "name": "Gemini 4 Carbon vs Inkling 2 Small",
        "url": ""
      }
    ],
    "description": "Gemini 4 Carbon scores 62.6 (B) to Inkling 2 Small's 52.1 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.",
    "facts": [
      "Gemini 4 Carbon B 62.6",
      "Inkling 2 Small D 52.1",
      "scores"
    ],
    "h1": "Gemini 4 Carbon vs Inkling 2 Small",
    "image": "https://www.anchorterminal.com/assets/og/default.png",
    "path": "/compare/gemini-4-carbon-vs-inkling-2-small",
    "published": "2026-10-01",
    "section": "tools",
    "title": "Gemini 4 Carbon vs Inkling 2 Small for AI agents (2026)",
    "toc": null,
    "updated": "2026-11-10",
    "url": "https://www.anchorterminal.com/compare/gemini-4-carbon-vs-inkling-2-small"
  },
  "tokens": {
    "markdown": 6200,
    "slim": 980
  },
  "version": 1
}
