"Welcome to the era of Superintelligence": Fable 5.5 apparently goes live — devs report auto-routing on claude.ai, and a Superman continuous-animation demo in multiple art styles
Developer Chetan (@chetaslua) tweeted on Oct 1, 2026 "Welcome To the era of Super intelligence : Fable 5.5", posting a continuous-animation video of Superman shifting across different art styles, generated with the model. A quoted tweet shows a screenshot claiming Fable 5.5 is already auto-routing on claude.ai — it edited his X page unprompted — and urges others to check if they are being routed. Context: Fable 5.5 was previously only a September pretraining rumor (@kimmonismus on Sep 8, @Mr_Salio on Sep 10, targeting "late September / early October"); Anthropic docs still listed claude-fable-5-1 as of late September, with no official confirmation. No official Anthropic announcement could be found at the time of writing — treat as unconfirmed until Anthropic speaks.
