# clm_C3B040A105E6

subject: Claude Fable 5.2 (/record/claude-fable-5-2.md)  
predicate: model_release  
value: Claude Fable 5.2  
valid_from: 2026-11-09  
valid_to: null  
published: 2026-11-09  
recorded: 2026-11-11  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-12  
cite: AsOf. "Claude Fable 5.2 model release: Claude Fable 5.2", as of 2026-11-09. Claim clm_C3B040A105E6, https://asof.is/claim/clm_C3B040A105E6, accessed 2026-11-12. Source: https://platform.claude.com/docs/en/release-notes/overview#2026-11-09.  
checked: 2026-11-12 · its source page states the value and the date  

> Introducing Claude Fable 5.2 and Claude Mythos 5.2 \ Anthropic Skip to main content News Research Policy Commitments Company Try Claude Introduction Performance and efficiency Coding Cybersecurity Science and engineering Safety and alignment Data privacy Availability November 9, 2026

What https://www.anthropic.com/claude-fable-and-mythos-5-2 says, word for word.

## Sources

- https://platform.claude.com/docs/en/release-notes/overview#2026-11-09 (primary, Anthropic, published 2026-11-09)
- https://www.anthropic.com/claude-fable-and-mythos-5-2 (primary, Anthropic, published 2026-11-09)

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