Head to head · LLM inference · October 2026 research run
Inkling 2 Small vs Vertex AI (Gemini Enterprise Agent Platform)
Vertex AI (Gemini Enterprise Agent Platform) scores 88.7 (AA) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in every scored category. Both do llm inference.
Best model APIs and inference for AI agents · All 830 models comparisons
Which one, for what
Best 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.
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
Serverless inference and the OpenAI-compatible API are both labelled beta, with a waitlist for higher throughput
Vertex AI (Gemini Enterprise Agent Platform) AA
Best for Google Cloud customers who need Gemini with residency, VPC-SC, provisioned throughput and an SLA, or Claude under a Google bill.
Ahead on
- Reliability, 99 against 30
- Schema & documentation, 94 against 70
- Agent ergonomics, 97 against 62
- Security & auth, 97 against 57
- Payments & pricing, 40 against 20
- Maintenance & community, 91 against 75
- Transparency & trust, 90 against 64
Also in its favour
- Agent-ready, a grade of BB or better
- Free to start without a card
Watch for
The SLA drops from 99.5 to 95 per cent for short-term availability models, Gemini 3.7 and 3.6 Flash among them
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Reliability Vertex AI (Gemini Enterprise Agent Platform) +69
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.
Vertex AI (Gemini Enterprise Agent Platform) 99
Google Cloud status dashboard with per-product history (20). Its incident feed, read on 6 November, has no incident naming Vertex Gemini API, Gemini or the Agent Platform in the 90 days. The regional incidents of 20 August, 1 September and 20 October (europe-west2) and the Cloud Storage incident of 8 and 9 October didn't list it among affected products (30). Standard PayGo publishes usage tiers by 30-day spend with baseline throughput, 2,000,000 to 50,000,000 tokens a minute for Flash models and 500,000 to 10,000,000 for Pro, plus quota tables for other methods (15). A 429 page says to use the global endpoint and truncated exponential backoff, and a retry-strategy page (15). SLA of 99.5 per cent a month on generateContent and streamGenerateContent, 95 per cent for short-term availability models, and a latency SLO on Provisioned Throughput. The 429 page says pay-as-you-go 429s don't count toward the SLA error rate (10). Gemini 4 Argon reached GA on 13 October and Gemini 3.8 Flash moved to the 12-month tier, and the v1 API, 3.5 Flash-Lite and Claude Opus 5.5 are GA, but express mode was Preview at the 6 October check (9 of 10, up from 8). Up from 98 on 6 October.
Security & auth Vertex AI (Gemini Enterprise Agent Platform) +40
Inkling 2 Small 57
Platform readings are the tinker listing's. Revocable API keys from the console, with no per-key scopes found (20). Org, team and project permissions with no read-only role (5). The model returns its own completions, no third-party content (10). get_audit_log() for admins (15). security.txt with a reporting address and no stated acknowledgement time (7). For the model reading, Tinker's terms commit not to use Customer Content for training, recorded under transparency. 20 + 5 + 10 + 15 + 7 = 57.
Vertex AI (Gemini Enterprise Agent Platform) 97
Model reading. OAuth 2.0 with IAM roles and service accounts, which the docs recommend for production, with API keys for testing. No key in a query string found in the docs we read (30). The training restriction in the Service Specific Terms says Google won't use customer data to train or fine-tune any model without permission, GA and pre-GA alike (20). Default in-memory caching for 24 hours that can be disabled, flagged prompts logged up to 90 days unless an abuse-monitoring exception is granted or the customer has a Cloud Master Agreement, the Interactions API storing by default, and Claude Fable 5 and Mythos 5 requiring 30-day retention shared with Anthropic (12 of 15, a judgement call matching the Fable exception on the Anthropic and Bedrock listings). Cloud Audit Logs, with Data Access logs off until enabled, and optional request-response logging to BigQuery (15). google.com security.txt valid to 2030-04-01, the Google VRP, and Generative AI on the platform in ISO 27001, 27017 and 27018 and SOC 1, 2 and 3 scope per the 1 October services-in-scope check for vertex-ai-tuning, not re-read on 6 October (20).
Agent ergonomics Vertex AI (Gemini Enterprise Agent Platform) +35
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.
Vertex AI (Gemini Enterprise Agent Platform) 97
Model reading of the checklist (tool use, structured output, caching, context, batch, SDKs, errors). Function calling with FunctionCallingConfig mode ANY and allowedFunctionNames to force a named tool (20). Schema-guaranteed JSON output (15). Implicit and explicit context caching, cached input at 0.1x, $0.075 per million on 3.8 Flash through 31 December (15). 1,048,576-token context on 3.8 Flash, a unified 1,048,576-token input and output limit on Gemini 4 Argon, and 1,000,000 on Claude Opus 5.5 (15). Flex/Batch at half price on Gemini (10). Gen AI SDKs for Python and JavaScript among others, and the OpenAI libraries work with Google Cloud auth (10). 429 handling documented per quota framework, with standard Google status codes elsewhere (12 of 15).
Transparency & trust Vertex AI (Gemini Enterprise Agent Platform) +26
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.
Vertex AI (Gemini Enterprise Agent Platform) 90
Closed service under the Google Cloud terms, with the Gen AI SDKs under Apache-2.0 and a public discovery document (18, as for Bedrock's open service models). The zero data retention and abuse monitoring pages agree with the Cloud terms and give periods for each case, 24 hours in memory, up to 90 days for flagged prompts, 30 days for Advanced AI models, 3 days for Search grounding logs and 30 days for Maps grounding, and say which can't be switched off (27 of 30). A dated model versions table with release and retirement dates and a stated 12-month or 45-day policy, but on 6 November it still listed Gemini 2.5 Pro, Flash and Flash-Lite as available with a 20 October 2026 retirement date and left them out of the retired table (18 of 20, down from 20). The Cloud subprocessor list with locations, per the 1 October vertex-ai-tuning check, regional and multi-region endpoints, and per-model ML processing locations on the partner model cards (20).
Schema & documentation Vertex AI (Gemini Enterprise Agent Platform) +24
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.
Vertex AI (Gemini Enterprise Agent Platform) 94
Model reading. Keyless discovery document for the Agent Platform API v1, revision 20260930, with 1,128 methods and 1,493 schemas (25). No llms.txt, but every docs page answers as Markdown at .md.txt, counted as for vertex-ai-tuning (10). Model cards give limits, capabilities and retirement dates, and the 3.8 Flash card says when to use 3.7 Flash instead, but the docs mix the Vertex AI and Agent Platform names, and the OpenAI page tells new users to call the Gemini Developer API instead (16 of 20). Structured output with response_schema and response_mime_type: application/json always follows the schema per the docs, and complex schemas fail with a 400 (15). Examples on every page and a 429 guide, but we found no full error code list for generateContent (13 of 15). Versioned v1 and v1beta1 APIs and release notes with entries on most working days, newest 5 November 2026 (15).
Payments & pricing Vertex AI (Gemini Enterprise Agent Platform) +20
Inkling 2 Small 20
Published rubric. No payment protocol (0). Per-million-token prices for serverless inference and training published without a login on 6 November (20). No free tier listed, and the quickstart asks for payment details before training, per the tinker listing (0). Sign-up is a browser flow (0). 0 + 20 + 0 + 0 = 20.
Vertex AI (Gemini Enterprise Agent Platform) 40
No x402, MPP or L402 (0). Per-token prices per model and option published without a login (20). Express mode gives new Google Cloud users 90 days free within quotas with no billing details, though it's in Preview and needs a @gmail.com account (20). A person signs up in the console to get the express key (0).
Score by category
| Category | Weight this run | Inkling 2 Small | Vertex AI (Gemini Enterprise Agent Platform) | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 30 | 99 | Vertex AI (Gemini Enterprise Agent Platform) +69 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 70 | 94 | Vertex AI (Gemini Enterprise Agent Platform) +24 |
| Agent ergonomics | 13%16.2 | 62 | 97 | Vertex AI (Gemini Enterprise Agent Platform) +35 |
| Security & auth | 14%17.5 | 57 | 97 | Vertex AI (Gemini Enterprise Agent Platform) +40 |
| Payments & pricing | 10%12.5 | 20 | 40 | Vertex AI (Gemini Enterprise Agent Platform) +20 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 75 | 91 | Vertex AI (Gemini Enterprise Agent Platform) +16 |
| Transparency & trust | 7%8.8 | 64 | 90 | Vertex AI (Gemini Enterprise Agent Platform) +26 |
| Negative events | ≤15 | 0 | 0 | |
| Total | D 52.1/100 | AA 88.7/100 |
Facts side by side
| Fact | Inkling 2 Small | Vertex AI (Gemini Enterprise Agent Platform) |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | Thinking Machines Lab | Google Cloud |
| Hosted endpoint | https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1 | https://aiplatform.googleapis.com/v1 |
| Transports | HTTP | |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Pay per use |
| x402 | no | no |
| Licence | 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 | Proprietary service under the Google Cloud Platform terms. Partner models carry their providers' terms. The Google Gen AI SDKs are Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-11-05 | 2026-11-05 |
| Terms last updated | not read yet | 2026-09-02 |
| Privacy policy last updated | not read yet | 2026-10-01 |
| Customer content may train models | not read yet | yes |
| Terms restrict automated access | not read yet | not found in the text |
| Terms restrict benchmarking | not read yet | not found in the text |
| Terms or service can change without notice | not read yet | not found in the text |
| Arbitration or class-action waiver | not read yet | not found in the text |
| Popularity | none | 20.9M PyPI/wk |
Verdicts
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.
Vertex AI (Gemini Enterprise Agent Platform)
Gemini, Claude and open models through one Google Cloud API with IAM, regional endpoints, schema-guaranteed JSON and a 99.5 per cent SLA, and no Vertex incident on the Cloud status page in the 90 days to 6 November 2026. Gemini 4 Argon and 3.8 Flash have 12-month availability, but short-term Flash models get a 95 per cent SLA.
Before you call either
Inkling 2 Small
- 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
Vertex AI (Gemini Enterprise Agent Platform)
- Call the
globallocation on aiplatform.googleapis.com unless data residency requires a Region. The 429 guide says it spreads load and reduces errors - Back off exponentially on 429
Resource exhausted. On Standard PayGo it means shared capacity is busy, not a fixed quota - Send
response_schemawithresponse_mime_type: application/json. JSON mode alone doesn't guarantee valid output - Set
storeto false on Interactions API calls. It defaults to true and keeps prompts and responses - Pin
gemini-4-argonorgemini-3.8-flash, both in the 12-month tier, rather than 3.7 or 3.6 Flash, which retire on 28 January 2027 and 19 November 2026
Questions
Which is better for AI agents, Inkling 2 Small or Vertex AI (Gemini Enterprise Agent Platform)?
Vertex AI (Gemini Enterprise Agent Platform) scores 88.7 (AA) on agent readiness against Inkling 2 Small's 52.1 (D), and leads in every scored category.
Do Inkling 2 Small and Vertex AI (Gemini Enterprise Agent Platform) need an API key?
Inkling 2 Small needs an API key. Vertex AI (Gemini Enterprise Agent Platform) takes an API key or an OAuth sign-in.
Can an agent call Inkling 2 Small and Vertex AI (Gemini Enterprise Agent Platform) without installing anything?
Yes. Inkling 2 Small has a hosted endpoint at https://tinker.thinkingmachines.dev/services/tinker-prod/oai/api/v1 and Vertex AI (Gemini Enterprise Agent Platform) at https://aiplatform.googleapis.com/v1.
Other comparisons with Inkling 2 Small or Vertex AI (Gemini Enterprise Agent Platform)
- Amazon Bedrock vs Inkling 2 Small
- Amazon Bedrock vs Vertex AI (Gemini Enterprise Agent Platform)
- Claude API vs Inkling 2 Small
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- Inkling 2 Small vs Jais 3
- Inkling 2 Small vs Meta Model API
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- Inkling 2 Small vs Muse Spark Open
- Inkling 2 Small vs Nemotron 3.5 Super VL
- Inkling 2 Small vs Novita AI
- Inkling 2 Small vs OpenAI API
- Inkling 2 Small vs OpenRouter
- Inkling 2 Small vs Prism Inference
- Inkling 2 Small vs Router.com (Ramp Router)
- Inkling 2 Small vs Beam 1.0
- Inkling 2 Small vs RouterPlus
- Inkling 2 Small vs SambaCloud
- Inkling 2 Small vs SiliconFlow
- Inkling 2 Small vs Simplismart
- Inkling 2 Small vs StepFun API
- Inkling 2 Small vs SWE-2 Flash
- Inkling 2 Small vs Tencent Cloud TokenHub
- Inkling 2 Small vs Together AI Inference
- Inkling 2 Small vs Vercel AI Gateway
- Inkling 2 Small vs xAI API (Grok)
- Jais 3 vs Vertex AI (Gemini Enterprise Agent Platform)
- Meta Model API vs Vertex AI (Gemini Enterprise Agent Platform)
- MiniMax API vs Vertex AI (Gemini Enterprise Agent Platform)
- Mistral AI API vs Vertex AI (Gemini Enterprise Agent Platform)
- Muse Spark Open vs Vertex AI (Gemini Enterprise Agent Platform)
- Novita AI vs Vertex AI (Gemini Enterprise Agent Platform)
- OpenAI API vs Vertex AI (Gemini Enterprise Agent Platform)
- OpenRouter vs Vertex AI (Gemini Enterprise Agent Platform)
- Prism Inference vs Vertex AI (Gemini Enterprise Agent Platform)
- Router.com (Ramp Router) vs Vertex AI (Gemini Enterprise Agent Platform)
- Beam 1.0 vs Vertex AI (Gemini Enterprise Agent Platform)
- RouterPlus vs Vertex AI (Gemini Enterprise Agent Platform)
- SambaCloud vs Vertex AI (Gemini Enterprise Agent Platform)
- SiliconFlow vs Vertex AI (Gemini Enterprise Agent Platform)
- Simplismart vs Vertex AI (Gemini Enterprise Agent Platform)
- StepFun API vs Vertex AI (Gemini Enterprise Agent Platform)
- SWE-2 Flash vs Vertex AI (Gemini Enterprise Agent Platform)
- Tencent Cloud TokenHub vs Vertex AI (Gemini Enterprise Agent Platform)
- Together AI Inference vs Vertex AI (Gemini Enterprise Agent Platform)
- Vercel AI Gateway vs Vertex AI (Gemini Enterprise Agent Platform)
- Vertex AI (Gemini Enterprise Agent Platform) vs xAI API (Grok)
- Nemotron 3.5 Super VL vs Vertex AI (Gemini Enterprise Agent Platform)
Machine-readable
- This page as Markdown
/compare/inkling-2-small-vs-vertex-ai.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/inkling-2-small.json·/api/v1/tools/vertex-ai.json - From a terminal
anchor compare inkling-2-small vertex-ai(the CLI) - Over MCP
compare_tools {"a": "inkling-2-small", "b": "vertex-ai"}at/mcp, no key