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Qwen3.5-397B-A17B
Qwen3.5-397B-A17B is an open-weight model from Alibaba, released Feb 16, 2026. It ranks #81 of 351 on the LMArena text leaderboard with a rating of 1438. It costs $0.50 per million input tokens and $3.60 per million output tokens, with a 256K-token context window.
- Developer
- Alibaba Qwen
- Released
- Feb 16, 2026
- Context window
- 256K
- Price in / out, per 1M tokens
- $0.50 / $3.60
- Weights
- Open · Apache 2.0
- Inputs
- Text, Images, Video
- Reasoning
- Yes
- Tool use
- Yes
- Hugging Face downloads, 30 days
- 733.5K
- Hugging Face likes
- 1.6K
The rating LMArena published at each update since Feb 19, 2026. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1438 | 81 / 351 | 96.2K |
| CodingLMArena | 1465 | 82 / 346 | 27.1K |
| MathLMArena | 1454 | 69 / 339 | 5.3K |
| Creative writingLMArena | 1403 | 95 / 349 | 17.2K |
| Instruction followingLMArena | 1424 | 84 / 351 | 33K |
| Hard promptsLMArena | 1448 | 79 / 351 | 63.3K |
| Multi-turnLMArena | 1447 | 70 / 349 | 15.5K |
| Long queriesLMArena | 1441 | 76 / 330 | 42.4K |
| ExpertLMArena | 1462 | 70 / 305 | 10.4K |
| Legal and governmentIndustries | 1441 | 83 / 325 | 7.4K |
| Medicine and healthcareIndustries | 1455 | 63 / 325 | 7.2K |
| Business and financeIndustries | 1435 | 69 / 344 | 19.1K |
| ChineseLanguages | 1499 | 54 / 328 | 6.7K |
| SpanishLanguages | 1441 | 83 / 249 | 3K |
| GermanLanguages | 1444 | 64 / 261 | 1.5K |
| FrenchLanguages | 1462 | 60 / 252 | 3.1K |
| JapaneseLanguages | 1430 | 43 / 236 | 1.2K |
| WebDevLMArena | 1400 | 98 / 124 | 21.2K |
| VisionLMArena | 1263 | 54 / 146 | 32.7K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Qwen3.5-397B-A17B
Alibaba Qwen
Alibaba Cloud’s Qwen team releases a broad family of open-weight models, from small to frontier scale. Founded 2023 (Qwen), based in Hangzhou. qwenlm.github.io
Questions
Who makes Qwen3.5-397B-A17B?
Qwen3.5-397B-A17B is made by Alibaba Qwen, founded 2023 (Qwen) and based in Hangzhou.
How much does Qwen3.5-397B-A17B cost?
$0.50 per million input tokens and $3.60 per million output tokens, at its provider’s list price.
What is Qwen3.5-397B-A17B’s context window?
256K tokens (262,144).
How does Qwen3.5-397B-A17B rank?
#81 of 351 on LMArena’s text leaderboard, rated 1438 (95% interval 1435–1441) from 96,206 votes, as of Oct 22, 2026.
Is Qwen3.5-397B-A17B open source?
Qwen3.5-397B-A17B has open weights under the Apache 2.0 license, downloadable from Hugging Face (Qwen/Qwen3.5-397B-A17B).