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Step 5 PreviewInkling
Inkling is an open-weight model from Thinky, released Jul 17, 2026. It ranks #72 of 351 on the LMArena text leaderboard with a rating of 1442, and #26 of 27 on the Vals Index with 28.96%. It costs $1 per million input tokens and $4.05 per million output tokens, with a 512K-token context window.
- Developer
- Thinky
- Released
- Jul 17, 2026
- Context window
- 512K
- Price in / out, per 1M tokens
- $1 / $4.05
- Weights
- Open · Apache 2.0
- Inputs
- Text, Images, Audio
- Reasoning
- Yes
- Tool use
- Yes
- Hugging Face downloads, 30 days
- 1.6M
- Hugging Face likes
- 1.8K
The rating LMArena published at each update since Jul 16, 2026. Ratings move as votes come in and new models join.
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| Vals IndexVals AI | 28.96% | 26 / 27 | $1.85 | |
| Terminal-Bench 4.0Coding | 0.51% | 52 / 55 | $2.50 | |
| SWE-benchCoding | 77.60% | 33 / 85 | $0.59 | |
| Vibe Code BenchCoding | 19.21% | 86 / 115 | $1.61 | |
| Code MigrationCoding | 8.82% | 28 / 28 | $6.13 | |
| LiveCodeBenchCoding | 85.52% | 32 / 143 | $1 / $4.05 | |
| Finance AgentFinance | 49.87% | 30 / 31 | $0.89 | |
| Finance IndexFinance | 38.25% | 30 / 31 | $0.97 | |
| Tax Agent BenchFinance | 15.29% | 56 / 76 | $0.35 | |
| Legal IndexLaw | 54.16% | 28 / 28 | $0.70 | |
| Legal Research BenchLaw | 28.36% | 56 / 85 | $0.49 | |
| MedCodeMedicine | 41.19% | 56 / 107 | $1 / $4.05 | |
| GPQA DiamondReasoning | 87.12% | 40 / 138 | $1 / $4.05 | |
| MMLU-ProReasoning | 86.30% | 43 / 138 | $1 / $4.05 | |
| MMMUReasoning | 78.50% | 51 / 93 | $1 / $4.05 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1442 | 72 / 351 | 43.7K |
| CodingLMArena | 1466 | 80 / 346 | 11.8K |
| MathLMArena | 1481 | 34 / 339 | 2K |
| Creative writingLMArena | 1390 | 117 / 349 | 9.4K |
| Instruction followingLMArena | 1425 | 80 / 351 | 15.7K |
| Hard promptsLMArena | 1451 | 73 / 351 | 28.6K |
| Multi-turnLMArena | 1438 | 91 / 349 | 6.9K |
| Long queriesLMArena | 1435 | 86 / 330 | 20.4K |
| ExpertLMArena | 1466 | 63 / 305 | 5.1K |
| Legal and governmentIndustries | 1448 | 71 / 325 | 3.6K |
| Medicine and healthcareIndustries | 1447 | 80 / 325 | 3K |
| Business and financeIndustries | 1439 | 60 / 344 | 8.1K |
| ChineseLanguages | 1493 | 63 / 328 | 3.4K |
| SpanishLanguages | 1449 | 62 / 249 | 1.4K |
| GermanLanguages | 1445 | 62 / 261 | 667 |
| FrenchLanguages | 1460 | 64 / 252 | 1.4K |
| JapaneseLanguages | 1429 | 44 / 236 | 707 |
| WebDevLMArena | 1415 | 92 / 124 | 16.3K |
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
Thinky
Questions
Who makes Inkling?
Inkling is made by Thinky.
How much does Inkling cost?
$1 per million input tokens and $4.05 per million output tokens, at its provider’s list price.
What is Inkling’s context window?
512K tokens (524,288).
How does Inkling rank?
#72 of 351 on LMArena’s text leaderboard, rated 1442 (95% interval 1438–1446) from 43,705 votes, as of Oct 22, 2026.
Is Inkling open source?
Inkling has open weights under the Apache 2.0 license, downloadable from Hugging Face (thinkingmachines/Inkling).