Leak: Anthropic's Fable 5.5 allegedly routing to some users, release rumored for Oct 2
YashasGunderia · x · 2026-10-02
An unverified leak claims Anthropic is preparing to ship a new model called Fable 5.5: some users' fable 5.1 requests are allegedly being routed to an updated checkpoint, with a rumored announcement as soon as October 2. A specific probe prompt is circulating to test for access. Treat with skepticism — unconfirmed and from a low-profile account.
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