# SWE Dev 9B

SWE Dev 9B is a model from Z.ai with open weights, first recorded on 7 Oct 2026; its release date is not established.

- Developer: Z.ai
- Id: zai-org/SWE-Dev-9B
- Sighting: 2026-10-07T19:45:29.808Z
  - [evidence link](https://huggingface.co/zai-org/SWE-Dev-9B)
- Status: Released
- Weights version: 2025-04-15
  - [evidence link](https://huggingface.co/api/models/zai-org/SWE-Dev-9B/paths-info/f4979d9bbe9225b9372416eda5068c3c8e9fbe8c)
- Canonical: https://alexgetman.com/models/z-ai/swe-dev-9b/

## Questions

### Are the weights of SWE Dev 9B publicly available?

Yes. Z.ai publishes the weights.

### When was SWE Dev 9B released?

Its release date is not established. Signal Forge first recorded it on 7 Oct 2026.

## Evidence links

- [hf-author-artifacts:zai-org](https://huggingface.co/api/models/zai-org/SWE-Dev-9B/paths-info/f4979d9bbe9225b9372416eda5068c3c8e9fbe8c)
- [huggingface:zai-org](https://huggingface.co/zai-org/SWE-Dev-9B)

## Signals