# HiRO ACEv2

HiRO ACEv2 is a model from Ai2 with open weights, first recorded on 1 Nov 2026; its release date is not established.

- Developer: Ai2
- Id: allenai/HiRO-ACEv2
- Sighting: 2026-11-01T18:24:27.355Z
  - [evidence link](https://huggingface.co/allenai/HiRO-ACEv2)
- Status: Released
- Weights version: 2026-10-12
  - [evidence link](https://huggingface.co/api/models/allenai/HiRO-ACEv2/paths-info/16bd51b8da79d85c138cc166c93196501616c3bf)
- Canonical: https://alexgetman.com/models/ai2/hiro-acev2/

## Questions

### Are the weights of HiRO ACEv2 publicly available?

Yes. Ai2 publishes the weights.

### When was HiRO ACEv2 released?

Its release date is not established. Signal Forge first recorded it on 1 Nov 2026.

## Evidence links

- [huggingface:allenai](https://huggingface.co/allenai/HiRO-ACEv2)
- [hf-author-artifacts:allenai](https://huggingface.co/api/models/allenai/HiRO-ACEv2/paths-info/16bd51b8da79d85c138cc166c93196501616c3bf)

## Signals