How much does Inkling Small cost?

Inkling Small costs $0.45/M input tokens and $1.20/M output tokens, with separate rates for Cache Read at $0.10/M tokens.

What is the context length of Inkling Small?

Inkling Small has a 524,288 token context window. It supports up to 262,144 completion tokens.

Does Inkling Small support tool calling and structured outputs?

Yes. Inkling Small accepts tools and tool_choice for function calling. It does not support response_format, so JSON output is not enforced.

What inputs and outputs does Inkling Small support?

Inkling Small accepts text, images, and audio as input and returns text.

Which providers serve Inkling Small?

Inkling Small is served by 1 provider on OpenRouter: DeepInfra.

What other text models does Thinking Machines have?

Inkling 2 Small and Inkling are other text models from Thinking Machines.

When was Inkling Small released?

Inkling Small was released on July 30, 2026.

The free Inkling Small endpoint is only available for use with agentic harnesses. Do not upload any confidential information or personal data (e.g., voices and images of people's faces). Your usage of this free endpoint, including prompts and outputs, is logged and used to improve Thinking Machines Lab's models, products, and services. The logged session data will be disassociated from your account and other persistent identifiers before being used for these purposes.

By using this free endpoint, you agree to the TML Free Research API Terms of Service. For more information about Thinking Machines Lab's data processing practices, see this Privacy Notice.

Thinking Machines: Inkling Small

thinkingmachines/inkling-small

Model weights

Compare

Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total. It is positioned as the smaller, more efficient member of the Inkling family and is suited for reasoning, coding, agentic workflows, retrieval-augmented generation, instruction following, and multilingual conversation.

Modalities

In / out price

$0.45 / $1.20per 1M

Context

524K

Released

Jul 30, 2026

Providers

This model is hosted by one provider. OpenRouter forwards every request without routing.

Latency / throughput


	$0.45	$1.20	$0.10	1.04s	27 tok/s	99.89%

Input $0.45Output $1.20
27 tok/s99.89% uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input

$0.4162/M tokens

Output

$1.197/M tokens

Inkling Small — Price history

Price history

No effective price data for this selection

		$0.416	$1.20	9.5%	100.0%

Effective in $0.416Effective out $1.20
Token share
100.0%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

99.84%

Availability over the last 3 days

Last 72 hours

Availability 99.84%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

99.96%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for Thinking Machines: Inkling Small (Artificial Analysis and Vals AI)
Source	Benchmark	Score
Artificial Analysis	Inkling Small Intelligence Index	12.9
Artificial Analysis	Inkling Small Coding Index	52.9
Artificial Analysis	Inkling Small Agentic Index	23.5
Artificial Analysis	Inkling Small GPQA Diamond	89.5%
Artificial Analysis	Inkling Small HLE	33.3%
Artificial Analysis	Inkling Small AA-LCR	75.7%
Artificial Analysis	Inkling Small τ-Bench Banking	18.8%
Artificial Analysis	Inkling Small GDPval-AA	31.6%
Artificial Analysis	Inkling Small CritPt	8.3%
Artificial Analysis	Inkling Small SciCode	49.7%
Artificial Analysis	Inkling Small Terminal-Bench 4.0	1.0%
Artificial Analysis	Inkling Small Terminal-Bench 2.1	55.1%
Artificial Analysis	Inkling Small AA-Omniscience Accuracy	31.8%
Artificial Analysis	Inkling Small AA-Omniscience Non-Hallucination Rate	39.5%
Vals AI	Inkling Small Code Migration v1.1	10.4%
Vals AI	Inkling Small CorpFin v2	69.6%
Vals AI	Inkling Small CyberBench v1.1	64.1%
Vals AI	Inkling Small EMB v1.1	40.8%
Vals AI	Inkling Small Finance Agent v2.1	44.8%
Vals AI	Inkling Small Vals Finance Index	36.3%
Vals AI	Inkling Small GPQA Diamond	83.6%
Vals AI	Inkling Small HLAB-Vals-1.1	2.9%
Vals AI	Inkling Small IOI	9.3%
Vals AI	Inkling Small LiveCodeBench	85.9%
Vals AI	Inkling Small LegalBench	83.0%
Vals AI	Inkling Small Vals Legal Index	57.8%
Vals AI	Inkling Small Legal Research Bench	25.5%
Vals AI	Inkling Small MedCode	37.9%
Vals AI	Inkling Small MedScribe	84.1%
Vals AI	Inkling Small MMLU Pro	85.6%
Vals AI	Inkling Small MortgageTax	62.3%
Vals AI	Inkling Small ProgramBench	0.5%
Vals AI	Inkling Small ProofBench v1.1	6.0%
Vals AI	Inkling Small Public Benefits Bench v1.1	59.4%
Vals AI	Inkling Small SAGE v1	32.7%
Vals AI	Inkling Small SkillsBench	33.6%
Vals AI	Inkling Small SWE-bench	82.2%
Vals AI	Inkling Small Tax Agent Bench	15.4%
Vals AI	Inkling Small TaxEval v2	75.5%
Vals AI	Inkling Small Terminal-Bench 4.0	0.0%
Vals AI	Inkling Small Vals Index	27.6%
Vals AI	Inkling Small Vals Multimodal Index	50.1%
Vals AI	Inkling Small Vibe Code Bench v1.1	19.1%

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Claude Code

Claude Code is Anthropic's agentic coding tool that reads your entire codebase, plans and executes changes across files, runs tests, and iterates on failures, all from natural language prompts.

888Mtokens

inkling

new

645Mtokens

Hermes Agent

Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.

527Mtokens

There are many coding agents, but this one is yours.

488Mtokens

Codex

A coding agent that helps you build and ship with AI

466Mtokens

Rest of OpenRouter

286M

Top 5 Apps

291K

Not currently available through EU in-region routing. In-region routing docs

More models from thinkingmachines

Inkling 2 Small

Inkling 2 Small is an open-weight multimodal mixture-of-experts reasoning model from Thinking Machines Lab, with 17B active parameters out of 594B total. It is the first model in the second Inkling generation. It was trained with reinforcement learning on long-horizon coding tasks across many agent harnesses, and is suited for agentic coding, autonomous research, agentic knowledge work and retrieval-augmented generation, with English and general multilingual support. It accepts text and image input (no audio), supports tool calling and variable reasoning effort, and has a 1M-token context window.

Text1.0M context$0.15 / $0.50

Inkling 2 Small (free)

Text1.0M contextFree

Inkling Small (batch)

Text524K context$0.36 / $0.96

Inkling

Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B active parameters out of 975B total. It is designed for general-purpose reasoning, coding, agentic and tool-use systems, retrieval-augmented generation, instruction following, and multilingual conversational applications. Its native image and audio understanding supports multimodal analysis alongside text.

Text524K context$1 / $4.05

Thinking Machines: Inkling Small

Providers