Claude Fable 5.1 High vs Fable 5 high in claude code
also tested on Claude Fable 5.1
XSEP 01, 2026
Anthropic · released JUN 09, 2026
A Mythos-class model made safe for general use; state-of-the-art on nearly all tested capability benchmarks. Briefly suspended over export controls, redeployed 1 July.
Claude Fable 5.1 High vs Fable 5 high in claude code
also tested on Claude Fable 5.1