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Step 5 PreviewInkling-Small
Inkling-Small is an open-weight model from Thinky, released Jul 30, 2026. It ranks #135 of 351 on the LMArena text leaderboard with a rating of 1413, and #27 of 27 on the Vals Index with 27.59%. It costs $0.45 per million input tokens and $1.20 per million output tokens, with a 512K-token context window.
- Developer
- Thinky
- Released
- Jul 30, 2026
- Context window
- 512K
- Price in / out, per 1M tokens
- $0.45 / $1.20
- Weights
- Open · Apache 2.0
- Inputs
- Text, Images, Audio
- Reasoning
- Yes
- Tool use
- Yes
- Hugging Face downloads, 30 days
- 989.9K
- Hugging Face likes
- 429
The rating LMArena published at each update since Aug 19, 2026. Ratings move as votes come in and new models join.
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| Vals IndexVals AI | 27.59% | 27 / 27 | $0.40 | |
| Terminal-Bench 4.0Coding | 0.00% | 54 / 55 | $0.32 | |
| SWE-benchCoding | 82.20% | 19 / 85 | $0.13 | |
| Vibe Code BenchCoding | 19.05% | 87 / 115 | $0.43 | |
| Code MigrationCoding | 10.43% | 27 / 28 | $1.36 | |
| LiveCodeBenchCoding | 85.93% | 26 / 143 | $0.3 / $1.2 | |
| Finance AgentFinance | 44.78% | 31 / 31 | $0.21 | |
| Finance IndexFinance | 36.27% | 31 / 31 | $0.18 | |
| Tax Agent BenchFinance | 15.39% | 55 / 76 | $0.09 | |
| Legal IndexLaw | 57.83% | 27 / 28 | $0.14 | |
| Legal Research BenchLaw | 25.48% | 58 / 85 | $0.14 | |
| MedCodeMedicine | 37.89% | 75 / 107 | $0.3 / $1.2 | |
| GPQA DiamondReasoning | 83.59% | 57 / 138 | $0.3 / $1.2 | |
| MMLU-ProReasoning | 85.57% | 58 / 138 | $0.3 / $1.2 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1413 | 135 / 351 | 35.4K |
| CodingLMArena | 1450 | 102 / 346 | 9.6K |
| MathLMArena | 1459 | 61 / 339 | 1.6K |
| Creative writingLMArena | 1334 | 187 / 349 | 7.7K |
| Instruction followingLMArena | 1399 | 133 / 351 | 12.9K |
| Hard promptsLMArena | 1423 | 127 / 351 | 23K |
| Multi-turnLMArena | 1416 | 125 / 349 | 5.4K |
| Long queriesLMArena | 1402 | 144 / 330 | 16.6K |
| ExpertLMArena | 1440 | 99 / 305 | 4.1K |
| Legal and governmentIndustries | 1415 | 143 / 325 | 3.1K |
| Medicine and healthcareIndustries | 1413 | 142 / 325 | 2.6K |
| Business and financeIndustries | 1412 | 119 / 344 | 6.5K |
| ChineseLanguages | 1463 | 103 / 328 | 2.8K |
| SpanishLanguages | 1425 | 107 / 249 | 1.1K |
| GermanLanguages | 1409 | 113 / 261 | 586 |
| FrenchLanguages | 1434 | 111 / 252 | 1.2K |
| JapaneseLanguages | 1399 | 78 / 236 | 583 |
| WebDevLMArena | 1409 | 93 / 124 | 5.3K |
| VisionLMArena | 1237 | 75 / 146 | 8.1K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Inkling-Small
Thinky
Questions
Who makes Inkling-Small?
Inkling-Small is made by Thinky.
How much does Inkling-Small cost?
$0.45 per million input tokens and $1.20 per million output tokens, at its provider’s list price.
What is Inkling-Small’s context window?
512K tokens (524,288).
How does Inkling-Small rank?
#135 of 351 on LMArena’s text leaderboard, rated 1413 (95% interval 1409–1418) from 35,359 votes, as of Oct 22, 2026.
Is Inkling-Small open source?
Inkling-Small has open weights under the Apache 2.0 license, downloadable from Hugging Face (thinkingmachines/Inkling-Small).