Qwen3.5 397B A17B
qwen/qwen3.5-397b-a17b-20260216
Qwen3.5 397B A17B is a model from qwen that accepts text, image, and video inputs and produces text output. It supports tool use and reasoning, provides a context length of 262 144 tokens, and its weights are not open. Pricing is $0.39 per million input tokens and $2.34 per million output tokens; the model was released on 2026‑02‑15.
- tool use
- structured outputs
- reasoning
At a glance
Specifications
What the API gives you
- Context window
- 262K tokens
- Max output
- 66K tokens
- Input price
- $0.39 / 1M tokens
- Output price
- $2.34 / 1M tokens
- Cache read
- —
- Modalities
- text, image, video → text
- Knowledge cutoff
- —
- Released
- Feb 15, 2026
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Measured evidence
Public benchmark record
- LMArena Text
- 1438 Elo2026-07-16
- LMArena Vision
- 1267 Elo2026-07-12
- LMArena WebDev
- 1396 Elo2026-07-16
- LMArena WebDev
- 1396 Elo2026-07-20
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.
Open-weight model on Hugging Face.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.