# Cosmo Xl

Cosmo Xl is a model from Ai2 with open weights, first recorded on 11 Nov 2026; its release date is not established.

- Developer: Ai2
- Id: allenai/cosmo-xl
- Sighting: 2026-11-11T22:44:54.722Z
  - [evidence link](https://huggingface.co/allenai/cosmo-xl)
- Status: Released
- Weights version: 2022-12-25
  - [evidence link](https://huggingface.co/api/models/allenai/cosmo-xl/paths-info/6241f24a0de679af2a72714bd96a6411e338c6d9)
- Canonical: https://alexgetman.com/models/ai2/cosmo-xl/

## Questions

### Are the weights of Cosmo Xl publicly available?

Yes. Ai2 publishes the weights.

### When was Cosmo Xl released?

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

## Evidence links

- [huggingface:allenai](https://huggingface.co/allenai/cosmo-xl)
- [hf-author-artifacts:allenai](https://huggingface.co/api/models/allenai/cosmo-xl/paths-info/6241f24a0de679af2a72714bd96a6411e338c6d9)

## Signals