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amazon-nova-experimental-chat
Dola Seed 2.0 Pro
NVIDIA-Nemotron-3-Ultra-550B-A55B
Gemma 4 31B
Step 5 Preview
Qwen3.5-Flash
Qwen3.5-Flash is a proprietary model from Alibaba, released Feb 25, 2026. It ranks #159 of 351 on the LMArena text leaderboard with a rating of 1397. It costs $0.065 per million input tokens and $0.26 per million output tokens, with a 1M-token context window.
- Developer
- Alibaba Qwen
- Released
- Feb 25, 2026
- Context window
- 1M
- Price in / out, per 1M tokens
- $0.065 / $0.26
- Weights
- Proprietary
- Inputs
- Text, Images, Video
- Reasoning
- Yes
- Tool use
- Yes
The rating LMArena published at each update since Mar 3, 2026. Ratings move as votes come in and new models join.
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| SWE-benchCoding | 64.40% | 71 / 85 | $0.26 | |
| LiveCodeBenchCoding | 83.28% | 49 / 143 | $0.1 / $0.4 | |
| MedCodeMedicine | 33.00% | 86 / 107 | $0.1 / $0.4 | |
| GPQA DiamondReasoning | 82.83% | 60 / 138 | $0.1 / $0.4 | |
| MMLU-ProReasoning | 84.06% | 68 / 138 | $0.1 / $0.4 | |
| AIMEReasoning | 92.50% | 19 / 96 | $0.1 / $0.4 | |
| MMMUReasoning | 81.91% | 38 / 93 | $0.1 / $0.4 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1397 | 159 / 351 | 61.8K |
| CodingLMArena | 1412 | 163 / 346 | 17.7K |
| MathLMArena | 1407 | 151 / 339 | 3.4K |
| Creative writingLMArena | 1343 | 177 / 349 | 9.7K |
| Instruction followingLMArena | 1375 | 167 / 351 | 20.3K |
| Hard promptsLMArena | 1403 | 161 / 351 | 40.1K |
| Multi-turnLMArena | 1393 | 164 / 349 | 11K |
| Long queriesLMArena | 1392 | 161 / 330 | 25.7K |
| ExpertLMArena | 1407 | 147 / 305 | 5.8K |
| Legal and governmentIndustries | 1398 | 160 / 325 | 4.8K |
| Medicine and healthcareIndustries | 1407 | 154 / 325 | 4.4K |
| Business and financeIndustries | 1395 | 149 / 344 | 12.2K |
| ChineseLanguages | 1446 | 135 / 328 | 3.7K |
| SpanishLanguages | 1399 | 146 / 249 | 2.1K |
| GermanLanguages | 1391 | 132 / 261 | 1.1K |
| FrenchLanguages | 1413 | 142 / 252 | 2.3K |
| JapaneseLanguages | 1369 | 112 / 236 | 665 |
| WebDevLMArena | 1244 | 139 / 124 | 1.3K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Qwen3.5-Flash
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-Flash?
Qwen3.5-Flash is made by Alibaba Qwen, founded 2023 (Qwen) and based in Hangzhou.
How much does Qwen3.5-Flash cost?
$0.065 per million input tokens and $0.26 per million output tokens, at its provider’s list price.
What is Qwen3.5-Flash’s context window?
1M tokens (1,000,000).
How does Qwen3.5-Flash rank?
#159 of 351 on LMArena’s text leaderboard, rated 1397 (95% interval 1393–1401) from 61,802 votes, as of Oct 22, 2026.
Is Qwen3.5-Flash open source?
No. Qwen3.5-Flash is proprietary and served through its provider’s API.