# Qwen1.5 4B

Qwen1.5 4B is a model from Alibaba with open weights, first recorded on 30 Sep 2026; its release date is not established.

- Developer: Alibaba
- Id: Qwen/Qwen1.5-4B
- Sighting: 2026-09-30T16:05:07.679Z
  - [evidence link](https://huggingface.co/Qwen/Qwen1.5-4B)
- Status: Released
- Weights version: 2024-01-22
  - [evidence link](https://huggingface.co/api/models/Qwen/Qwen1.5-4B/paths-info/a66363a0c24e2155c561e4b53c658b1d3965474e)
- Canonical: https://alexgetman.com/models/alibaba/qwen1-5-4b/

## Questions

### Are the weights of Qwen1.5 4B publicly available?

Yes. Alibaba publishes the weights.

### When was Qwen1.5 4B released?

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

## Evidence links

- [huggingface:Qwen](https://huggingface.co/Qwen/Qwen1.5-4B)
- [hf-author-artifacts:Qwen](https://huggingface.co/api/models/Qwen/Qwen1.5-4B/paths-info/a66363a0c24e2155c561e4b53c658b1d3965474e)

## Signals