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Thinking Machines: Inkling

thinkingmachines/inkling

Inkling is Thinking Machines’s open-weights AI model, released Jul 15, 2026. It costs $1/M input and $4.05/M output tokens, and handles a 524K-token context window. Its strongest use case is coding, where it ranks in the 60th percentile of the models Model Beat tracks.

Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B active parameters out of 975B total.

Context
524K
Input
$1 / 1M
Output
$4.05 / 1M
Released
Jul 15, 2026
Modalities
textimageaudiotext
Strongest atCoding top 40%Reasoning & Knowledge top 40%

Benchmarks

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

60.0
Intelligence Index
Artificial Analysis
60th percentile of tracked models
60.0
Coding Index
Artificial Analysis
60th percentile of tracked models

Reasoning

2 evals
GPQA Diamond87.2%

Graduate-level scientific reasoning

Humanity's Last Exam29.7%

Frontier of human expert knowledge

Coding

1 evals
SciCode46.1%

Scientific research coding

In the news

2

Changelog

2
  • Inkling: context window changed from 1,048,576 to 524,288 tokenscontext · Jul 21, 2026
  • Inkling (Thinking Machines) added to the tracker: $1/$4.05 per 1M, 1M context.tracked · Jul 18, 2026

Compare Inkling with

Frequently asked questions

What is Inkling?

Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B active parameters out of 975B total.

Who created Inkling?

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

How much does Inkling cost?

Inkling is served from $1 per million input tokens and $4.05 per million output tokens (cheapest credible provider on OpenRouter: Together).

What is Inkling's context window?

Inkling supports a context window of up to 524K tokens.

How does Inkling perform on benchmarks?

On standardized evaluations tracked by Epoch AI, Inkling scores 29.7% on Humanity's Last Exam, 46.1% on SciCode, 87.2% on GPQA Diamond.

Is Inkling open source?

Inkling 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 Jul 21, 2026.