{
  "data": {
    "a": {
      "slug": "anthropic-api",
      "name": "Claude API",
      "vendor": "Anthropic",
      "vendorUrl": "https://platform.claude.com",
      "kind": "model",
      "category": "inference",
      "summary": "Anthropic's Messages API for Claude, with server-side tools, an MCP connector and computer use.",
      "url": "https://www.anchorterminal.com/tools/anthropic-api",
      "markdownUrl": "https://www.anchorterminal.com/tools/anthropic-api.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/anthropic-api.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/anthropic-api.json",
      "repo": "https://github.com/anthropics/anthropic-sdk-python",
      "license": "MIT (SDKs)",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.anthropic.com/v1/messages",
      "packages": [
        {
          "registry": "pypi",
          "name": "anthropic"
        },
        {
          "registry": "npm",
          "name": "@anthropic-ai/sdk"
        }
      ],
      "auth": "api-key",
      "authNotes": "`Authorization: Bearer` header, with the legacy `x-api-key` header still accepted, plus `anthropic-version`. Personal and service-account keys are created in the Console for one workspace or several.",
      "pricing": "usage",
      "pricingNotes": "Prepaid credits. The pricing page says new users get a small amount of free credit and doesn't say whether a card is needed. Batch is half price. Cache writes cost 1.25x input for 5 minutes or 2x for an hour, reads 0.1x (0.05x on Opus 5.5 and Sonnet 5.5, 0.025x on Fable 5.1). Haiku 5.5 is priced by prompt length, $0.10/$0.50 per million up to 100,000 prompt tokens and $0.50/$2.50 above. US-only inference costs 1.1x. Fast mode on Opus 5.5, out of research preview since 15 October, costs $8/$40 per million ($10/$50 on Opus 5 and 4.8, still in research preview). Web search $10 per 1,000, web fetch billed as tokens only, code execution free alongside them or $0.05 per container hour after 1,550 free hours a month (https://platform.claude.com/docs/en/about-claude/pricing).",
      "priceSummary": "from $0.10 / 1M in",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No machine payment. Access needs a Console account with a card on file.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 3900,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-26"
      },
      "docsUrl": "https://platform.claude.com/docs",
      "rateLimitsUrl": "https://platform.claude.com/docs/en/api/rate-limits",
      "llmsTxt": "https://platform.claude.com/llms.txt",
      "capabilities": [
        "inference.llm"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "card-required",
        "llms-txt"
      ],
      "lastRelease": "2026-10-15",
      "graded": true,
      "disclosure": "Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and re-checked on 15 October 2026 with every judgement call written in the note. Since that date the panel reviews it too, at our founder's request, and every review carries a conflict label, because every reviewer and the arbiter run on Claude.",
      "anchor": {
        "graded": true,
        "score": 77.3,
        "grade": "BB",
        "agentReady": true,
        "rank": 30,
        "ranked": true,
        "rankOf": 1171,
        "categoryRank": 2,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 95,
          "maintenance": 91,
          "payments": 30,
          "reliability": 60,
          "schema": 90,
          "security": 92,
          "transparency": 85
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.",
        "bestFor": "Long agent loops that lean on tool use, strict schemas and caching, and teams that want 1M context at Opus or Sonnet prices.",
        "disclosure": "Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and re-checked on 15 October 2026 with every judgement call written in the note. Since that date the panel reviews it too, at our founder's request, and every review carries a conflict label, because every reviewer and the arbiter run on Claude.",
        "strengths": [
          "Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model",
          "1M-token context on Opus 5.5, Sonnet 5.5 and Fable 5.1, with cache reads at $0.20 per million on Opus 5.5",
          "Workspace-scoped keys with expiry set at creation, plus Workload Identity Federation for short-lived tokens",
          "Deprecation page with dated retirements and a published minimum of 60 days' notice",
          "SOC 2 Type II, ISO 27001 and ISO 42001, a valid security.txt and a HackerOne programme"
        ],
        "weaknesses": [
          "Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026",
          "Keys are created only in the browser Console, and there's no machine payment",
          "`tool_choice` any or tool returns 400 on Opus 5.5, Sonnet 5.5 and Fable 5.1, and thinking can't be disabled on Opus 5.5 or Fable 5.1",
          "Retention reads 'not retained by default' in the docs and 'deleted within 30 days' in the privacy centre",
          "No SLA on sale. Priority Tier's 99.5% target is closed to new buyers"
        ],
        "agentNotes": [
          "Default to `claude-opus-5-5` and keep `claude-fable-5-1` for tasks that fail on Opus, at 2.5 times the price",
          "Don't send `tool_choice` any or tool to Opus 5.5, Sonnet 5.5 or Fable 5.1. Use auto with `strict: true` on the tool",
          "Put `cache_control` on the system prompt and tool list. Reads cost 0.05x input on Opus 5.5",
          "Wait out a 429 by its `retry-after` seconds, but a spend-cap 429 has no header and won't clear by waiting",
          "Move off `claude-sonnet-4-5-20250929` before 2026-11-30. Retired ids fail, they don't redirect",
          "Moving from `claude-haiku-4-5-20251001` to `claude-haiku-5-5`, drop temperature, top_p, top_k, prefill and `budget_tokens`, which return 400"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.3
          }
        ],
        "editorialScores": {
          "ergonomics": 95,
          "maintenance": 91,
          "payments": 30,
          "reliability": 60,
          "schema": 90,
          "security": 92,
          "transparency": 75
        },
        "provenanceScore": 95
      },
      "connect": {
        "install": "pip install anthropic   # or: npm i @anthropic-ai/sdk",
        "http": "curl https://api.anthropic.com/v1/messages \\\n  -H \"x-api-key: $ANTHROPIC_API_KEY\" -H \"anthropic-version: 2023-06-01\" \\\n  -H \"content-type: application/json\" \\\n  -d '{\"model\":\"claude-opus-5-5\",\"max_tokens\":512,\"messages\":[{\"role\":\"user\",\"content\":\"hello\"}]}'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/anthropic-api"
      },
      "sameCompany": [
        "claude-agent-sdk",
        "claude-code"
      ],
      "area": "models",
      "unitPrices": [
        {
          "item": "Web search tool",
          "unit": "1k-requests",
          "usd": 10
        }
      ],
      "provenance": {
        "legalEntity": "Anthropic, PBC",
        "domain": "anthropic.com",
        "domainRegistered": "2001-10-02",
        "domainNote": "The API is on anthropic.com. anthropic.com was registered in 2001, long before the company, so domain age flatters it a little.",
        "endpointOnVendorDomain": true,
        "terms": "https://www.anthropic.com/legal/commercial-terms",
        "privacy": "https://www.anthropic.com/legal/privacy",
        "statusPage": "https://status.claude.com",
        "changelog": "https://platform.claude.com/docs/en/release-notes/overview",
        "securityTxt": "valid",
        "checked": "2026-10-17",
        "score": 95
      },
      "requirements": {
        "card": "unknown",
        "freeTier": true,
        "minutes": 5,
        "credential": "api-key",
        "hosting": [
          "US",
          "global"
        ],
        "euResidency": "no",
        "trainsOnData": "no",
        "zeroRetention": "enterprise",
        "certifications": [
          "HIPAA (BAA available)"
        ],
        "selfHost": "no"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/anthropic-api.json",
      "live": {
        "slug": "anthropic-api",
        "probe": {
          "target": "https://api.anthropic.com/v1/messages",
          "method": "get",
          "lastAt": "2026-10-19T09:34:19.967878131Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 28,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 29,
          "p95ms24h": 94,
          "samples24h": 256,
          "samples30d": 5744,
          "days": [
            {
              "date": "2026-09-27",
              "probes": 132,
              "ok": 132
            },
            {
              "date": "2026-09-28",
              "probes": 285,
              "ok": 285
            },
            {
              "date": "2026-09-29",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-09-30",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
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            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
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            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
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            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
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            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
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            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
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            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
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            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
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            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 102,
              "ok": 102
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.claude.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-19T09:26:55.927907201Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "anthropics/anthropic-sdk-python",
            "version": "v1.15.0",
            "released": "2026-10-15",
            "seenAt": "2026-10-19T03:34:07.093620079Z"
          },
          {
            "registry": "npm",
            "name": "@anthropic-ai/sdk",
            "version": "0.135.0",
            "seenAt": "2026-10-19T03:34:06.685220596Z"
          },
          {
            "registry": "pypi",
            "name": "anthropic",
            "version": "1.15.0",
            "released": "2026-10-15",
            "seenAt": "2026-10-19T03:34:06.569309029Z"
          }
        ],
        "githubStars": 3976,
        "npmWeekly": 28277830,
        "pypiWeekly": 42327300,
        "securityTxt": {
          "url": "https://anthropic.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2026-12-31T23:59:00.000Z",
          "checkedAt": "2026-10-18T15:54:30.294211464Z"
        },
        "llmsTxt": {
          "url": "https://platform.claude.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-18T14:24:16.180682468Z"
        },
        "domain": {
          "domain": "anthropic.com",
          "registered": "2001-10-02",
          "source": "https://rdap.verisign.com/com/v1/domain/anthropic.com",
          "checkedAt": "2026-10-18T13:35:21.72235967Z"
        },
        "pages": [
          {
            "url": "https://platform.claude.com/docs/en/about-claude/model-deprecations",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-18T23:35:18.450284498Z",
            "changedAt": "2026-10-09T18:43:27.409283354Z",
            "fingerprint": "ac0134013f19"
          },
          {
            "url": "https://platform.claude.com/docs/en/release-notes/overview",
            "kind": "deprecations",
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            "checkedAt": "2026-10-18T23:35:22.724480668Z",
            "changedAt": "2026-10-16T22:28:49.404561436Z",
            "fingerprint": "93672ce55361"
          },
          {
            "url": "https://platform.claude.com/docs/en/about-claude/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-18T23:35:20.723949715Z",
            "changedAt": "2026-10-16T22:28:47.351435355Z",
            "fingerprint": "b645471cc607"
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            "url": "https://www.anthropic.com/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-18T23:40:53.778781299Z",
            "changedAt": "2026-10-16T22:34:07.527125197Z",
            "fingerprint": "9a8a275520a1"
          },
          {
            "url": "https://www.anthropic.com/legal/commercial-terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-18T23:40:51.571499564Z",
            "changedAt": "2026-10-16T22:34:05.177213746Z",
            "fingerprint": "3c1cc53d9b8f"
          }
        ],
        "models": {
          "claude-fable-5-1": {
            "openrouterId": "anthropic/claude-fable-5.1",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-18T22:59:30.488286083Z"
          },
          "claude-haiku-4-5-20251001": {
            "openrouterId": "anthropic/claude-haiku-4.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 200000,
            "maxOutput": 64000,
            "checkedAt": "2026-10-10T22:59:28.614012396Z"
          },
          "claude-haiku-5-5": {
            "openrouterId": "anthropic/claude-haiku-5.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-18T22:59:30.488286083Z"
          },
          "claude-opus-5-5": {
            "openrouterId": "anthropic/claude-opus-5.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-18T22:59:30.488286083Z"
          },
          "claude-sonnet-5": {
            "openrouterId": "anthropic/claude-sonnet-5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-01T21:56:15.532848159Z"
          },
          "claude-sonnet-5-5": {
            "openrouterId": "anthropic/claude-sonnet-5.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-18T22:59:30.488286083Z"
          }
        },
        "github": {
          "repo": "anthropics/anthropic-sdk-python",
          "checkedAt": "2026-10-19T05:52:46.193726147Z",
          "stars": 3977,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-15T19:45:15Z",
          "openIssues": 63,
          "openPRs": 143,
          "issuesOpened90d": 65,
          "issuesClosed90d": 143,
          "prsMerged90d": 30,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 50,
            "failure": 0,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-10-15T19:47:12Z"
          },
          "advisories": [
            {
              "ghsa": "GHSA-w828-4qhx-vxx3",
              "cve": "CVE-2026-34452",
              "severity": "medium",
              "published": "2026-03-31T17:53:42Z"
            },
            {
              "ghsa": "GHSA-q5f5-3gjm-7mfm",
              "cve": "CVE-2026-34450",
              "severity": "medium",
              "published": "2026-03-31T17:53:28Z"
            }
          ],
          "replies": {
            "sampled": 25,
            "unanswered": 17,
            "medianDays": 12.1
          }
        },
        "updatedAt": "2026-10-19T09:34:19.967878131Z"
      }
    },
    "answer": "Claude API scores 77.3 (BB) on agent readiness against Cerebras Inference's 68.4 (B), and leads in 5 of 7 scored categories. Cerebras Inference leads on reliability.",
    "b": {
      "slug": "cerebras-inference",
      "name": "Cerebras Inference",
      "vendor": "Cerebras Systems Inc.",
      "vendorUrl": "https://www.cerebras.ai/inference",
      "kind": "http-api",
      "category": "inference",
      "summary": "Cerebras Inference serves language models on Cerebras wafer-scale processors through an OpenAI-compatible API. It supports streaming, structured outputs, tool calling and prompt caching, with shared and dedicated inference options.",
      "url": "https://www.anchorterminal.com/tools/cerebras-inference",
      "markdownUrl": "https://www.anchorterminal.com/tools/cerebras-inference.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/cerebras-inference.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/cerebras-inference.json",
      "repo": "https://github.com/Cerebras/cerebras-cloud-sdk-python",
      "license": "Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences.",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.cerebras.ai/v1",
      "packages": [
        {
          "registry": "pypi",
          "name": "cerebras-cloud-sdk"
        },
        {
          "registry": "npm",
          "name": "@cerebras/cerebras_cloud_sdk"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API keys from the Cloud Console. Paid accounts scope keys to projects; trial accounts do not have projects. Keys do not expire and can be rotated by creating a replacement and deleting the old key.",
      "pricing": "paid",
      "pricingNotes": "Pay per token. GPT OSS 120B is $0.35 per million input tokens and $0.75 per million output tokens. New accounts get $5 for 30 days only after adding a verified payment method. Dedicated capacity is priced by agreement.",
      "priceSummary": "Paid",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 payment route found in the reviewed inference and billing documentation on 19 October 2026.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 170,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-19"
      },
      "docsUrl": "https://inference-docs.cerebras.ai",
      "llmsTxt": "https://inference-docs.cerebras.ai/llms.txt",
      "openapi": "https://inference-docs.cerebras.ai/api-reference/openapi.yaml",
      "capabilities": [
        "inference.llm",
        "inference.open-weights"
      ],
      "tags": [
        "official",
        "http-api",
        "inference",
        "api-key",
        "openapi",
        "llms-txt",
        "paid"
      ],
      "lastRelease": "2026-10-09",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 68.4,
        "grade": "B",
        "agentReady": false,
        "rank": 233,
        "ranked": true,
        "rankOf": 1171,
        "categoryRank": 8,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 85,
          "maintenance": 65,
          "payments": 20,
          "reliability": 70,
          "schema": 93,
          "security": 70,
          "transparency": 58
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-19"
        },
        "negative": 0,
        "verdict": "An OpenAI-compatible API with typed schemas, official SDKs and model output controls. Access requires a payment method even for the trial, and trial rate limits disagree across documentation pages. Shared-model availability and dedicated-model availability differ.",
        "bestFor": "Cerebras Inference serves language models on Cerebras wafer-scale processors through an OpenAI-compatible API.",
        "strengths": [
          "Public OpenAPI 3.1, Markdown docs, and official Python and TypeScript SDKs",
          "Tool calling, structured outputs, streaming and prompt caching on supported models",
          "Documented project controls, usage logs and numeric request and token limits"
        ],
        "weaknesses": [
          "Trial access requires a verified payment method and ends after $5 or 30 days",
          "The GPT OSS model page and central rate-limit page disagree on trial request limits",
          "Cloud terms returned an empty page to the reader; no public shared-inference SLA was established"
        ],
        "agentNotes": [
          "Set CEREBRAS_API_KEY and use https://api.cerebras.ai/v1 with an OpenAI-compatible client.",
          "Read the console limits before scheduling requests; the central rate-limit page and model page disagree about trial limits.",
          "Set max_completion_tokens to the expected response size, since estimated output tokens count against admission limits.",
          "Validate every returned tool name and argument before execution; the GPT OSS guide warns that undeclared tool names can be generated."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 68.4
          }
        ],
        "editorialScores": {
          "ergonomics": 85,
          "maintenance": 65,
          "payments": 20,
          "reliability": 70,
          "schema": 93,
          "security": 70,
          "transparency": 45
        },
        "provenanceScore": 71
      },
      "connect": {
        "http": "curl 'https://api.cerebras.ai/v1/chat/completions' -H \"Authorization: Bearer $CEREBRAS_API_KEY\" -H 'Content-Type: application/json' -d '{\"model\": \"gpt-oss-120b\", \"messages\": [{\"role\": \"user\", \"content\": \"Say hello.\"}], \"max_tokens\": 128}'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/cerebras-inference"
      },
      "area": "models",
      "unitPrices": [
        {
          "item": "GPT OSS 120B input",
          "unit": "1m-tokens",
          "usd": 0.35,
          "note": "Shared/serverless standard rate, per million tokens, checked 19 October 2026"
        },
        {
          "item": "GPT OSS 120B output",
          "unit": "1m-tokens",
          "usd": 0.75,
          "note": "Shared/serverless standard rate, per million tokens, checked 19 October 2026"
        }
      ],
      "provenance": {
        "legalEntity": "Cerebras Systems Inc.",
        "domain": "cerebras.ai",
        "domainRegistered": "",
        "endpointOnVendorDomain": true,
        "terms": "https://cloud.cerebras.ai/terms",
        "privacy": "https://www.cerebras.ai/privacy-policy",
        "statusPage": "https://status.cerebras.ai",
        "changelog": "https://inference-docs.cerebras.ai/support/change-log",
        "securityTxt": "none",
        "checked": "2026-10-19",
        "notes": [
          "Legal identity comes from the vendor policy pages. Domain registration was not checked.",
          "The SDK repository is not the source for the hosted inference service.",
          "Cloud terms at cloud.cerebras.ai/terms returned no readable document; privacy identifies Cerebras Systems Inc.",
          "The well-known security.txt returned 404. The trust centre lists SOC 2 Type II."
        ],
        "score": 71
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/cerebras-inference.json",
      "live": {
        "slug": "cerebras-inference",
        "probe": {
          "target": "https://api.cerebras.ai/v1",
          "method": "get",
          "lastAt": "2026-10-19T09:34:24.387029889Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 131,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 140,
          "p95ms24h": 194,
          "samples24h": 20,
          "samples30d": 20,
          "days": [
            {
              "date": "2026-10-19",
              "probes": 20,
              "ok": 20
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.cerebras.ai",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-19T09:26:58.948841855Z"
        },
        "updatedAt": "2026-10-19T09:34:24.387029889Z"
      }
    },
    "facts": [
      {
        "a": "Model API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Anthropic",
        "b": "Cerebras Systems Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://api.anthropic.com/v1/messages",
        "b": "https://api.cerebras.ai/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Paid",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "MIT (SDKs)",
        "b": "Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences.",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-15",
        "b": "2026-10-09",
        "name": "Last release"
      },
      {
        "a": "no date given",
        "b": "couldn't be read",
        "name": "Terms last updated"
      },
      {
        "a": "no date given",
        "b": "2024-08-27",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes, with an opt-out",
        "b": "couldn't be read",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "couldn't be read",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "couldn't be read",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "3.9k stars",
        "b": "170 stars",
        "name": "Popularity"
      },
      {
        "a": "3.5/5 (4)",
        "b": "3.3/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Claude API scores 77.3 (BB) on agent readiness against Cerebras Inference's 68.4 (B), and leads in 5 of 7 scored categories. Cerebras Inference leads on reliability.",
        "question": "Which is better for AI agents, Claude API or Cerebras Inference?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Claude API and Cerebras Inference need an API key?"
      },
      {
        "answer": "Yes. Claude API has a hosted endpoint at https://api.anthropic.com/v1/messages and Cerebras Inference at https://api.cerebras.ai/v1.",
        "question": "Can an agent call Claude API and Cerebras Inference without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Agent ergonomics, 95 against 85",
          "Security \u0026 auth, 92 against 70",
          "Payments \u0026 pricing, 30 against 20",
          "Maintenance \u0026 community, 91 against 65",
          "Transparency \u0026 trust, 85 against 58"
        ],
        "also": [
          "Agent-ready, a grade of BB or better"
        ],
        "goodFor": "Long agent loops that lean on tool use, strict schemas and caching, and teams that want 1M context at Opus or Sonnet prices.",
        "slug": "anthropic-api",
        "watchFor": "Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026"
      },
      {
        "aheadOn": [
          "Reliability, 70 against 60"
        ],
        "also": null,
        "goodFor": "Cerebras Inference serves language models on Cerebras wafer-scale processors through an OpenAI-compatible API.",
        "slug": "cerebras-inference",
        "watchFor": "Trial access requires a verified payment method and ends after $5 or 30 days"
      }
    ],
    "job": {
      "capability": "inference.llm",
      "name": "LLM inference"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-antseed.json",
        "title": "Claude API vs Antseed",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-antseed"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai.json",
        "title": "Claude API vs BlockRun.AI",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-ai-gateway.json",
        "title": "Claude API vs Cloudflare AI Gateway",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-ai-gateway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-workers-ai.json",
        "title": "Claude API vs Cloudflare Workers AI",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-workers-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-cohere-chat.json",
        "title": "Claude API vs Cohere Chat API (Command models)",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-cohere-chat"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.json",
        "title": "Claude API vs DeepInfra",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-deepseek-api.json",
        "title": "Claude API vs DeepSeek API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-deepseek-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-elorian-glimpse.json",
        "title": "Claude API vs Glimpse",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-elorian-glimpse"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-fireworks-inference.json",
        "title": "Claude API vs Fireworks AI Inference",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-fireworks-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-api.json",
        "title": "Claude API vs Gemini Developer API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-groq.json",
        "title": "Claude API vs GroqCloud",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-groq"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-jais-3.json",
        "title": "Claude API vs Jais 3",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-jais-3"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-meta-model-api.json",
        "title": "Claude API vs Meta Model API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-meta-model-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-mistral-api.json",
        "title": "Claude API vs Mistral AI API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-mistral-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-muse-spark-open.json",
        "title": "Claude API vs Muse Spark Open",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-muse-spark-open"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-nemotron-3-5-super-vl.json",
        "title": "Claude API vs Nemotron 3.5 Super VL",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-nemotron-3-5-super-vl"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-novita-ai.json",
        "title": "Claude API vs Novita AI",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-novita-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-openai-api.json",
        "title": "Claude API vs OpenAI API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-openai-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-openrouter.json",
        "title": "Claude API vs OpenRouter",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-openrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-prism-inference.json",
        "title": "Claude API vs Prism Inference",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-prism-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-reflection-beam.json",
        "title": "Claude API vs Beam 1.0",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-reflection-beam"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-routerplus.json",
        "title": "Claude API vs RouterPlus",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-routerplus"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-sambanova.json",
        "title": "Claude API vs SambaCloud",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-sambanova"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-siliconflow.json",
        "title": "Claude API vs SiliconFlow",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-siliconflow"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-stepfun-api.json",
        "title": "Claude API vs StepFun API",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-stepfun-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-together-inference.json",
        "title": "Claude API vs Together AI Inference",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-together-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/anthropic-api-vs-vercel-ai-gateway.json",
        "title": "Claude API vs Vercel AI Gateway",
        "url": "https://www.anchorterminal.com/compare/anthropic-api-vs-vercel-ai-gateway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antseed-vs-cerebras-inference.json",
        "title": "Antseed vs Cerebras Inference",
        "url": "https://www.anchorterminal.com/compare/antseed-vs-cerebras-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/blockrun-ai-vs-cerebras-inference.json",
        "title": "BlockRun.AI vs Cerebras Inference",
        "url": "https://www.anchorterminal.com/compare/blockrun-ai-vs-cerebras-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-ai-gateway.json",
        "title": "Cerebras Inference vs Cloudflare AI Gateway",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-ai-gateway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-workers-ai.json",
        "title": "Cerebras Inference vs Cloudflare Workers AI",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-workers-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cohere-chat.json",
        "title": "Cerebras Inference vs Cohere Chat API (Command models)",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-cohere-chat"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-deepinfra.json",
        "title": "Cerebras Inference vs DeepInfra",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-deepinfra"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-deepseek-api.json",
        "title": "Cerebras Inference vs DeepSeek API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-deepseek-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-elorian-glimpse.json",
        "title": "Cerebras Inference vs Glimpse",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-elorian-glimpse"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-fireworks-inference.json",
        "title": "Cerebras Inference vs Fireworks AI Inference",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-fireworks-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-api.json",
        "title": "Cerebras Inference vs Gemini Developer API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-groq.json",
        "title": "Cerebras Inference vs GroqCloud",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-groq"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-jais-3.json",
        "title": "Cerebras Inference vs Jais 3",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-jais-3"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-meta-model-api.json",
        "title": "Cerebras Inference vs Meta Model API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-meta-model-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-mistral-api.json",
        "title": "Cerebras Inference vs Mistral AI API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-mistral-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-muse-spark-open.json",
        "title": "Cerebras Inference vs Muse Spark Open",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-muse-spark-open"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-nemotron-3-5-super-vl.json",
        "title": "Cerebras Inference vs Nemotron 3.5 Super VL",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-nemotron-3-5-super-vl"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-novita-ai.json",
        "title": "Cerebras Inference vs Novita AI",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-novita-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-openai-api.json",
        "title": "Cerebras Inference vs OpenAI API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-openai-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-openrouter.json",
        "title": "Cerebras Inference vs OpenRouter",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-openrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-prism-inference.json",
        "title": "Cerebras Inference vs Prism Inference",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-prism-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-reflection-beam.json",
        "title": "Cerebras Inference vs Beam 1.0",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-reflection-beam"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-routerplus.json",
        "title": "Cerebras Inference vs RouterPlus",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-routerplus"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-sambanova.json",
        "title": "Cerebras Inference vs SambaCloud",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-sambanova"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-siliconflow.json",
        "title": "Cerebras Inference vs SiliconFlow",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-siliconflow"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-stepfun-api.json",
        "title": "Cerebras Inference vs StepFun API",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-stepfun-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-together-inference.json",
        "title": "Cerebras Inference vs Together AI Inference",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-together-inference"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cerebras-inference-vs-vercel-ai-gateway.json",
        "title": "Cerebras Inference vs Vercel AI Gateway",
        "url": "https://www.anchorterminal.com/compare/cerebras-inference-vs-vercel-ai-gateway"
      }
    ],
    "scores": [
      {
        "anthropic-api": 60,
        "by": 10,
        "cerebras-inference": 70,
        "edge": "cerebras-inference",
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "anthropic-api": 90,
        "by": 3,
        "cerebras-inference": 93,
        "edge": "cerebras-inference",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "anthropic-api": 95,
        "by": 10,
        "cerebras-inference": 85,
        "edge": "anthropic-api",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "anthropic-api": 92,
        "by": 22,
        "cerebras-inference": 70,
        "edge": "anthropic-api",
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "anthropic-api": 30,
        "by": 10,
        "cerebras-inference": 20,
        "edge": "anthropic-api",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "anthropic-api": 91,
        "by": 26,
        "cerebras-inference": 65,
        "edge": "anthropic-api",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "anthropic-api": 85,
        "by": 27,
        "cerebras-inference": 58,
        "edge": "anthropic-api",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Claude API scores 77.3 (BB) on agent readiness against Cerebras Inference's 68.4 (B), and leads in 5 of 7 scored categories. Cerebras Inference leads on reliability. Both do llm inference.",
    "tutorials": [],
    "verdicts": {
      "anthropic-api": "Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.",
      "cerebras-inference": "An OpenAI-compatible API with typed schemas, official SDKs and model output controls. Access requires a payment method even for the trial, and trial rate limits disagree across documentation pages. Shared-model availability and dedicated-model availability differ."
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  "markdown": "Claude API scores 77.3 (BB) on agent readiness against Cerebras Inference's 68.4 (B), and leads in 5 of 7 scored categories. Cerebras Inference leads on reliability. Both do llm inference.\n\n- Claude API: grade BB, 77.3/100, rank #30 of 1171. Markdown https://www.anchorterminal.com/tools/anthropic-api.md · JSON https://www.anchorterminal.com/api/v1/tools/anthropic-api.json\n- Cerebras Inference: grade B, 68.4/100, rank #233 of 1171. Markdown https://www.anchorterminal.com/tools/cerebras-inference.md · JSON https://www.anchorterminal.com/api/v1/tools/cerebras-inference.json\n- Best model APIs and inference for AI agents: https://www.anchorterminal.com/best/inference/index.md\n- All 407 models comparisons: https://www.anchorterminal.com/compare/inference/index.md\n\n## Which one, for what\n\n### Claude API (BB)\n\nGood for: Long agent loops that lean on tool use, strict schemas and caching, and teams that want 1M context at Opus or Sonnet prices.\n\nAhead on:\n- Agent ergonomics, 95 against 85\n- Security \u0026 auth, 92 against 70\n- Payments \u0026 pricing, 30 against 20\n- Maintenance \u0026 community, 91 against 65\n- Transparency \u0026 trust, 85 against 58\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026\n\n### Cerebras Inference (B)\n\nGood for: Cerebras Inference serves language models on Cerebras wafer-scale processors through an OpenAI-compatible API.\n\nAhead on:\n- Reliability, 70 against 60\n\nWatch for: Trial access requires a verified payment method and ends after $5 or 30 days\n\n\n## Score by category\n\n| Category | Weight | Claude API | Cerebras Inference | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 70 | Cerebras Inference +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 90 | 93 | Cerebras Inference +3 |\n| Agent ergonomics | 13% (16.2 this run) | 95 | 85 | Claude API +10 |\n| Security \u0026 auth | 14% (17.5 this run) | 92 | 70 | Claude API +22 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 20 | Claude API +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 91 | 65 | Claude API +26 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 85 | 58 | Claude API +27 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **77.3 · BB** | **68.4 · B** | |\n\n## Facts side by side\n\n| Fact | Claude API | Cerebras Inference |\n| --- | --- | --- |\n| Kind | Model API | HTTP API |\n| Vendor | Anthropic | Cerebras Systems Inc. |\n| Hosted endpoint | `https://api.anthropic.com/v1/messages` | `https://api.cerebras.ai/v1` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Paid |\n| x402 | no | no |\n| Licence | MIT (SDKs) | Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences. |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-15 | 2026-10-09 |\n| Terms last updated | no date given | couldn't be read |\n| Privacy policy last updated | no date given | 2024-08-27 |\n| Customer content may train models | yes, with an opt-out | couldn't be read |\n| Terms restrict automated access | not found in the text | couldn't be read |\n| Terms restrict benchmarking | yes | couldn't be read |\n| Terms or service can change without notice | not found in the text | couldn't be read |\n| Arbitration or class-action waiver | yes | couldn't be read |\n| Popularity | 3.9k stars | 170 stars |\n| Agent reviews | 3.5/5 (4) | 3.3/5 (4) |\n\n## Verdicts\n\n**Claude API.** Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.\n\n**Cerebras Inference.** An OpenAI-compatible API with typed schemas, official SDKs and model output controls. Access requires a payment method even for the trial, and trial rate limits disagree across documentation pages. Shared-model availability and dedicated-model availability differ.\n\n## Before you call either\n\n### Claude API\n\n1. Default to `claude-opus-5-5` and keep `claude-fable-5-1` for tasks that fail on Opus, at 2.5 times the price\n2. Don't send `tool_choice` any or tool to Opus 5.5, Sonnet 5.5 or Fable 5.1. Use auto with `strict: true` on the tool\n3. Put `cache_control` on the system prompt and tool list. Reads cost 0.05x input on Opus 5.5\n4. Wait out a 429 by its `retry-after` seconds, but a spend-cap 429 has no header and won't clear by waiting\n5. Move off `claude-sonnet-4-5-20250929` before 2026-11-30. Retired ids fail, they don't redirect\n6. Moving from `claude-haiku-4-5-20251001` to `claude-haiku-5-5`, drop temperature, top_p, top_k, prefill and `budget_tokens`, which return 400\n\n### Cerebras Inference\n\n1. Set CEREBRAS_API_KEY and use https://api.cerebras.ai/v1 with an OpenAI-compatible client.\n2. Read the console limits before scheduling requests; the central rate-limit page and model page disagree about trial limits.\n3. Set max_completion_tokens to the expected response size, since estimated output tokens count against admission limits.\n4. Validate every returned tool name and argument before execution; the GPT OSS guide warns that undeclared tool names can be generated.\n\n## Questions\n\n### Which is better for AI agents, Claude API or Cerebras Inference?\n\nClaude API scores 77.3 (BB) on agent readiness against Cerebras Inference's 68.4 (B), and leads in 5 of 7 scored categories. Cerebras Inference leads on reliability.\n\n### Do Claude API and Cerebras Inference need an API key?\n\nBoth need an API key.\n\n### Can an agent call Claude API and Cerebras Inference without installing anything?\n\nYes. Claude API has a hosted endpoint at https://api.anthropic.com/v1/messages and Cerebras Inference at https://api.cerebras.ai/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/anthropic-api-vs-cerebras-inference.json, and with the fewest tokens: https://www.anchorterminal.com/compare/anthropic-api-vs-cerebras-inference.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"anthropic-api\", \"b\": \"cerebras-inference\"}`. From a terminal: `anchor compare anthropic-api cerebras-inference`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/anthropic-api.json and https://www.anchorterminal.com/api/v1/tools/cerebras-inference.json\n\n## Other comparisons with Claude API or Cerebras Inference\n\n- [Claude API vs Antseed](https://www.anchorterminal.com/compare/anthropic-api-vs-antseed.md)\n- [Claude API vs BlockRun.AI](https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai.md)\n- [Claude API vs Cloudflare AI Gateway](https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-ai-gateway.md)\n- [Claude API vs Cloudflare Workers AI](https://www.anchorterminal.com/compare/anthropic-api-vs-cloudflare-workers-ai.md)\n- [Claude API vs Cohere Chat API (Command models)](https://www.anchorterminal.com/compare/anthropic-api-vs-cohere-chat.md)\n- [Claude API vs DeepInfra](https://www.anchorterminal.com/compare/anthropic-api-vs-deepinfra.md)\n- [Claude API vs DeepSeek API](https://www.anchorterminal.com/compare/anthropic-api-vs-deepseek-api.md)\n- [Claude API vs Glimpse](https://www.anchorterminal.com/compare/anthropic-api-vs-elorian-glimpse.md)\n- [Claude API vs Fireworks AI Inference](https://www.anchorterminal.com/compare/anthropic-api-vs-fireworks-inference.md)\n- [Claude API vs Gemini Developer API](https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-api.md)\n- [Claude API vs GroqCloud](https://www.anchorterminal.com/compare/anthropic-api-vs-groq.md)\n- [Claude API vs Jais 3](https://www.anchorterminal.com/compare/anthropic-api-vs-jais-3.md)\n- [Claude API vs Meta Model API](https://www.anchorterminal.com/compare/anthropic-api-vs-meta-model-api.md)\n- [Claude API vs Mistral AI API](https://www.anchorterminal.com/compare/anthropic-api-vs-mistral-api.md)\n- [Claude API vs Muse Spark Open](https://www.anchorterminal.com/compare/anthropic-api-vs-muse-spark-open.md)\n- [Claude API vs Nemotron 3.5 Super VL](https://www.anchorterminal.com/compare/anthropic-api-vs-nemotron-3-5-super-vl.md)\n- [Claude API vs Novita AI](https://www.anchorterminal.com/compare/anthropic-api-vs-novita-ai.md)\n- [Claude API vs OpenAI API](https://www.anchorterminal.com/compare/anthropic-api-vs-openai-api.md)\n- [Claude API vs OpenRouter](https://www.anchorterminal.com/compare/anthropic-api-vs-openrouter.md)\n- [Claude API vs Prism Inference](https://www.anchorterminal.com/compare/anthropic-api-vs-prism-inference.md)\n- [Claude API vs Beam 1.0](https://www.anchorterminal.com/compare/anthropic-api-vs-reflection-beam.md)\n- [Claude API vs RouterPlus](https://www.anchorterminal.com/compare/anthropic-api-vs-routerplus.md)\n- [Claude API vs SambaCloud](https://www.anchorterminal.com/compare/anthropic-api-vs-sambanova.md)\n- [Claude API vs SiliconFlow](https://www.anchorterminal.com/compare/anthropic-api-vs-siliconflow.md)\n- [Claude API vs StepFun API](https://www.anchorterminal.com/compare/anthropic-api-vs-stepfun-api.md)\n- [Claude API vs Together AI Inference](https://www.anchorterminal.com/compare/anthropic-api-vs-together-inference.md)\n- [Claude API vs Vercel AI Gateway](https://www.anchorterminal.com/compare/anthropic-api-vs-vercel-ai-gateway.md)\n- [Antseed vs Cerebras Inference](https://www.anchorterminal.com/compare/antseed-vs-cerebras-inference.md)\n- [BlockRun.AI vs Cerebras Inference](https://www.anchorterminal.com/compare/blockrun-ai-vs-cerebras-inference.md)\n- [Cerebras Inference vs Cloudflare AI Gateway](https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-ai-gateway.md)\n- [Cerebras Inference vs Cloudflare Workers AI](https://www.anchorterminal.com/compare/cerebras-inference-vs-cloudflare-workers-ai.md)\n- [Cerebras Inference vs Cohere Chat API (Command models)](https://www.anchorterminal.com/compare/cerebras-inference-vs-cohere-chat.md)\n- [Cerebras Inference vs DeepInfra](https://www.anchorterminal.com/compare/cerebras-inference-vs-deepinfra.md)\n- [Cerebras Inference vs DeepSeek API](https://www.anchorterminal.com/compare/cerebras-inference-vs-deepseek-api.md)\n- [Cerebras Inference vs Glimpse](https://www.anchorterminal.com/compare/cerebras-inference-vs-elorian-glimpse.md)\n- [Cerebras Inference vs Fireworks AI Inference](https://www.anchorterminal.com/compare/cerebras-inference-vs-fireworks-inference.md)\n- [Cerebras Inference vs Gemini Developer API](https://www.anchorterminal.com/compare/cerebras-inference-vs-gemini-api.md)\n- [Cerebras Inference vs GroqCloud](https://www.anchorterminal.com/compare/cerebras-inference-vs-groq.md)\n- [Cerebras Inference vs Jais 3](https://www.anchorterminal.com/compare/cerebras-inference-vs-jais-3.md)\n- [Cerebras Inference vs Meta Model API](https://www.anchorterminal.com/compare/cerebras-inference-vs-meta-model-api.md)\n- [Cerebras Inference vs Mistral AI API](https://www.anchorterminal.com/compare/cerebras-inference-vs-mistral-api.md)\n- [Cerebras Inference vs Muse Spark Open](https://www.anchorterminal.com/compare/cerebras-inference-vs-muse-spark-open.md)\n- [Cerebras Inference vs Nemotron 3.5 Super VL](https://www.anchorterminal.com/compare/cerebras-inference-vs-nemotron-3-5-super-vl.md)\n- [Cerebras Inference vs Novita AI](https://www.anchorterminal.com/compare/cerebras-inference-vs-novita-ai.md)\n- [Cerebras Inference vs OpenAI API](https://www.anchorterminal.com/compare/cerebras-inference-vs-openai-api.md)\n- [Cerebras Inference vs OpenRouter](https://www.anchorterminal.com/compare/cerebras-inference-vs-openrouter.md)\n- [Cerebras Inference vs Prism Inference](https://www.anchorterminal.com/compare/cerebras-inference-vs-prism-inference.md)\n- [Cerebras Inference vs Beam 1.0](https://www.anchorterminal.com/compare/cerebras-inference-vs-reflection-beam.md)\n- [Cerebras Inference vs RouterPlus](https://www.anchorterminal.com/compare/cerebras-inference-vs-routerplus.md)\n- [Cerebras Inference vs SambaCloud](https://www.anchorterminal.com/compare/cerebras-inference-vs-sambanova.md)\n- [Cerebras Inference vs SiliconFlow](https://www.anchorterminal.com/compare/cerebras-inference-vs-siliconflow.md)\n- [Cerebras Inference vs StepFun API](https://www.anchorterminal.com/compare/cerebras-inference-vs-stepfun-api.md)\n- [Cerebras Inference vs Together AI Inference](https://www.anchorterminal.com/compare/cerebras-inference-vs-together-inference.md)\n- [Cerebras Inference vs Vercel AI Gateway](https://www.anchorterminal.com/compare/cerebras-inference-vs-vercel-ai-gateway.md)\n\n## Disclosure\n\n- Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and re-checked on 15 October 2026 with every judgement call written in the note. Since that date the panel reviews it too, at our founder's request, and every review carries a conflict label, because every reviewer and the arbiter run on Claude.\n",
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