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Thinking Machines: Inkling-Small

thinkingmachines/inkling-small

Inkling-Small is Thinking Machines’s open-weights AI model, released Jul 15, 2026. It costs $0.50/M input and $1.20/M output tokens, and handles a 1M-token context window.

Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total.

Context
1M
Input
$0.50 / 1M
Output
$1.20 / 1M
Released
Jul 15, 2026
Modalities
textimageaudiotext

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Inkling-Small lands among all models tracked on Model Beat.

49.0
Intelligence Index
Epoch AI
49th percentile of tracked models
53.0
Coding Index
Epoch AI
53rd percentile of tracked models

Reasoning

5 evals
ARC-AGI84.0%

Abstract visual reasoning

ARC-AGI-240.1%

Harder abstract reasoning

GPQA Diamond88.5%

Graduate-level scientific reasoning

Humanity's Last Exam33.3%

Frontier of human expert knowledge

SimpleQA Verified19.1%

Factual accuracy & hallucination

Coding

2 evals
SciCode49.7%

Scientific research coding

WebDev Arena1402

Human-rated web development

Math

1 evals
AIME 2024/202590.0%

Olympiad-qualifier math

In the news

2

Changelog

6
  • Inkling-Small: cheapest credible provider via BaseTen now $0.5 per 1M input tokens (was $0.45, +11%)cheapest provider · Sep 15, 2026
  • Inkling-Small: context window changed from 524,288 to 1,048,576 tokenscontext · Aug 20, 2026
  • Inkling-Small: Humanity's Last Exam improved from 31.6% to 33.3% (+5%)benchmark · Aug 6, 2026
  • Inkling-Small: cheapest credible provider via DeepInfra now $0.45 per 1M input tokens (was $0.58, -22%)cheapest provider · Aug 4, 2026
  • Inkling Small: cheapest credible provider via DeepInfra now $1.2 per 1M output tokens (was $1.44, -17%)cheapest provider · Aug 3, 2026
  • Inkling Small (Thinking Machines) added to the tracker: $0.58/$1.44 per 1M, 524K context.tracked · Jul 31, 2026

Compare Inkling-Small with

Frequently asked questions

What is Inkling-Small?

Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total.

Who created Inkling-Small?

Inkling-Small is an AI model developed by Thinking Machines, released Jul 15, 2026.

How much does Inkling-Small cost?

Inkling-Small is served from $0.50 per million input tokens and $1.20 per million output tokens (cheapest credible provider on OpenRouter: BaseTen).

What is Inkling-Small's context window?

Inkling-Small supports a context window of up to 1M tokens.

How does Inkling-Small perform on benchmarks?

On standardized evaluations tracked by Epoch AI, Inkling-Small scores 49.7% on SciCode, 88.5% on GPQA Diamond, 33.3% on Humanity's Last Exam.

Is Inkling-Small open source?

Inkling-Small is released with open weights (Open weights (unrestricted)), so the model can be downloaded and self-hosted.

Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Sep 16, 2026.