# Qwen3.5 397B A17B

Qwen3.5 397B A17B is a model from Alibaba with open weights, released on 16 Feb 2026. The context window is 262,144 tokens. Pricing is $0.60 per million input tokens and $3.60 per million output tokens.

- Developer: Alibaba
- Id: qwen/qwen3.5-397b-a17b
- Released: 2026-02-16T00:00:00.000Z
- Sighting: 2026-09-08T11:13:34.789Z
  - [evidence link](https://openrouter.ai/qwen/qwen3.5-397b-a17b)
- Status: Released
- Weights version: 2026-02-16
  - [evidence link](https://huggingface.co/api/models/Qwen/Qwen3.5-397B-A17B/paths-info/8472618112abcbd45acbcdc58436aff4233c23f7)
- Canonical: https://alexgetman.com/models/alibaba/qwen3-5-397b-a17b/

## Questions

### What is the context window of Qwen3.5 397B A17B?

The context window is 262,144 tokens.

### How much does Qwen3.5 397B A17B cost?

Pricing is $0.60 per million input tokens and $3.60 per million output tokens. Cached input is $0.12 per million.

### Are the weights of Qwen3.5 397B A17B publicly available?

Yes. Alibaba publishes the weights.

### When was Qwen3.5 397B A17B released?

On 16 Feb 2026.

## Evidence links

- [huggingface-router](https://huggingface.co/Qwen/Qwen3.5-397B-A17B)
- [hf-author-artifacts:Qwen](https://huggingface.co/api/models/Qwen/Qwen3.5-397B-A17B/paths-info/8472618112abcbd45acbcdc58436aff4233c23f7)
- [review](https://huggingface.co/qwen/qwen3.5-397b-a17b)
- [openrouter](https://openrouter.ai/qwen/qwen3.5-397b-a17b)

## Signals