# Claude Mythos 5.2 timeline: models

entity: /record/claude-mythos-5-2.md  
full timeline: /timelines/claude-mythos-5-2.md  

Model releases, deprecations, retirements, predecessors and default changes, oldest first. A model's row is on the model's own record.


## 2026

- 2026-11-09 | model_release | [Claude Mythos 5.2](/record/claude-mythos-5-2.md) | Claude Mythos 5.2 | valid | [clm_EB896F1A17D3](/claim/clm_EB896F1A17D3.md)