# Qwen3 4B Thinking 2507

Qwen3 4B Thinking 2507 is a model from Alibaba with open weights, first recorded on 30 Sep 2026; its release date is not established. The context window is 262,144 tokens.

- Developer: Alibaba
- Id: Qwen/Qwen3-4B-Thinking-2507
- Sighting: 2026-09-30T16:05:07.679Z
  - [evidence link](https://huggingface.co/Qwen/Qwen3-4B-Thinking-2507)
- Status: Released
- Weights version: 2025-08-05
  - [evidence link](https://huggingface.co/api/models/Qwen/Qwen3-4B-Thinking-2507/paths-info/768f209d9ea81521153ed38c47d515654e938aea)
- Canonical: https://alexgetman.com/models/alibaba/qwen3-4b-thinking-2507/

## Questions

### What is the context window of Qwen3 4B Thinking 2507?

The context window is 262,144 tokens.

### Are the weights of Qwen3 4B Thinking 2507 publicly available?

Yes. Alibaba publishes the weights.

### When was Qwen3 4B Thinking 2507 released?

Its release date is not established. Signal Forge first recorded it on 30 Sep 2026.

## Evidence links

- [huggingface-router](https://huggingface.co/Qwen/Qwen3-4B-Thinking-2507)
- [hf-author-artifacts:Qwen](https://huggingface.co/api/models/Qwen/Qwen3-4B-Thinking-2507/paths-info/768f209d9ea81521153ed38c47d515654e938aea)

## Signals