waypoints.si The sky Every system The lead Countries Forecast revisions
Claude Mythos 5
Anthropic, 9 Jun 2026.
- Lab
- Anthropic
- Released
- 9 Jun 2026
- Kind
- Language, Language modeling/generation
- Training compute
- Not disclosed
- Parameters
- Not disclosed
- Organisations
- Anthropic
- Country
- United States
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.