# OLMo 2 0425 1B

OLMo 2 0425 1B is a model from Ai2 with open weights, first recorded on 11 Nov 2026; its release date is not established.

- Developer: Ai2
- Id: allenai/OLMo-2-0425-1B
- Sighting: 2026-11-11T10:20:09.831Z
  - [evidence link](https://huggingface.co/allenai/OLMo-2-0425-1B)
- Status: Released
- Weights version: 2025-04-17
  - [evidence link](https://huggingface.co/api/models/allenai/OLMo-2-0425-1B/paths-info/a1847dff35000b4271fa70afc5db10fd29fedbdf)
- Canonical: https://alexgetman.com/models/ai2/olmo-2-0425-1b/

## Questions

### Are the weights of OLMo 2 0425 1B publicly available?

Yes. Ai2 publishes the weights.

### When was OLMo 2 0425 1B released?

Its release date is not established. Signal Forge first recorded it on 11 Nov 2026.

## Evidence links

- [huggingface:allenai](https://huggingface.co/allenai/OLMo-2-0425-1B)
- [hf-author-artifacts:allenai](https://huggingface.co/api/models/allenai/OLMo-2-0425-1B/paths-info/a1847dff35000b4271fa70afc5db10fd29fedbdf)

## Signals