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Step 5 Preview
Qwen1.5-4B-Chat
Qwen1.5-4B-Chat is an open-weight model from Alibaba. It ranks #405 of 351 on the LMArena text leaderboard with a rating of 997.
- Developer
- Alibaba Qwen
- Released
- Feb 15, 2024
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Open · Qianwen LICENSE
- Inputs
- —
- Reasoning
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- Tool use
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The rating LMArena published at each update since Feb 15, 2024. Ratings move as votes come in and new models join.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 997 | 405 / 351 | 7.6K |
| CodingLMArena | 999 | 399 / 346 | 1.3K |
| MathLMArena | 1026 | 387 / 339 | 988 |
| Creative writingLMArena | 969 | 406 / 349 | 1.1K |
| Instruction followingLMArena | 978 | 403 / 351 | 2.6K |
| Hard promptsLMArena | 976 | 405 / 351 | 2.1K |
| Multi-turnLMArena | 977 | 400 / 349 | 1.1K |
| Long queriesLMArena | 987 | 393 / 330 | 692 |
| ExpertLMArena | 980 | 366 / 305 | 356 |
| Legal and governmentIndustries | 1010 | 380 / 325 | 390 |
| Medicine and healthcareIndustries | 956 | 383 / 325 | 433 |
| Business and financeIndustries | 965 | 398 / 344 | 738 |
| ChineseLanguages | 1024 | 367 / 328 | 1K |
| GermanLanguages | 902 | 315 / 261 | 211 |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Qwen1.5-4B-Chat
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 Qwen1.5-4B-Chat?
Qwen1.5-4B-Chat is made by Alibaba Qwen, founded 2023 (Qwen) and based in Hangzhou.
How does Qwen1.5-4B-Chat rank?
#405 of 351 on LMArena’s text leaderboard, rated 997 (95% interval 988–1006) from 7,597 votes, as of Oct 22, 2026.
Is Qwen1.5-4B-Chat open source?
Qwen1.5-4B-Chat has open weights under the Qianwen LICENSE license.