Anthropic · Claude
Claude Mythos 5
ActiveReleased 16 days ago· Jun 9, 2026Multimodal model
Same Mythos-class weights as Fable 5 with safety classifiers removed; restricted to Project Glasswing partners only (not public API). $10/$50.
- API string
- claude-mythos-5
- Context window
- 1M ctx
- Knowledge cutoff
- Jan 1, 2026
- Tier
- Flagship
- Released
- Jun 9, 2026
Release & change timeline
1 event- Release
Claude Mythos 5 released
Mythos-class weights without safety classifiers; restricted to Project Glasswing partners (not public).
Part of the Claude version timeline. Catch Me Up — everything that changed across AI & smart home ↗