> Thinking Machines has 2 models on The Model Index, from Inkling (Jul 2026) to Inkling-Small (30 Jul 2026). Its strongest is Inkling-Small, with an index score of 154 (GPT-4 = 100), rank 48 of 229. All have open weights.

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Thinking Machines

Lab · 2 models · since Jul 2026

# TM · Thinking Machines

Thinking Machines has 2 models on The Model Index, from Inkling (Jul 2026) to Inkling-Small (30 Jul 2026). Its strongest is Inkling-Small, with an index score of 154 (GPT-4 = 100), rank 48 of 229. All have open weights.

2

models tracked

2 open · 0 closed

154

index score of Inkling-Small

#48 of 229 models

30 Jul 2026

latest release

Inkling-Small

2

current versions

0 replaced by newer ones

## Every model · newest first

| | MODEL | RELEASED | WEIGHTS | INDEX SCORE | INPUT $/M | OUTPUT $/M | CONTEXT |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 48 | [TM Inkling-Small](https://themodelindex.org/models/inkling-small/) | 30 Jul 2026 | OPEN | 154 | $0.45 | $1.2 | 524K |
| 59 | [TM Inkling](https://themodelindex.org/models/inkling/) | 15 Jul 2026 | OPEN | 150 | $1.0 | $4.05 | 524K |

Index score is fitted from independent evaluations and scaled so GPT-4 = 100; a striped bar is an estimate for a model not yet independently tested. Prices are list prices per million tokens.

## Release history · 2 announcements

[The Race →](https://themodelindex.org/race/)

| DATE | RELEASE | KIND | SOURCE |
| --- | --- | --- | --- |
| 30 Jul 2026 | Inkling-Small | Open weights | [thinkingmachines.ai ↗](https://thinkingmachines.ai/news/inkling-small/) |
| 15 Jul 2026 | Inkling | Open weights | [thinkingmachines.ai ↗](https://thinkingmachines.ai/news/introducing-inkling/) |

Dates come from each lab's own announcement, linked where one exists.

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Source: https://themodelindex.org/labs/thinking-machines/ · The Model Index · data as of 2026-10-01