waypoints.si The sky Every system The lead Countries Forecast revisions
Hierarchical Reasoning Model (HPM)
Other groups, 4 Aug 2025.
- Lab
- Other groups
- Released
- 4 Aug 2025
- Kind
- Language, Visual puzzles
- Training compute
- Not disclosed
- Parameters
- 27.0 million
- Organisations
- Sapient Intelligence
- Country
- Other
See it in the 3D sky Paper or announcement
Data: Epoch AI (Creative Commons Attribution), releases too new for it from OpenRouter, and METR. Updated 25 Sep 2026.