Cryptopolitan·
Anthropic web code shows "Mythos 5.5" as Fable 5.5 rumors grow

A hidden "Mythos 5.5" label appeared in Anthropic's Mythos page code on November 1, feeding claims that Opus 5.5 requests reach an unreleased Fable 5.5.
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A hidden "Mythos 5.5" label appeared in Anthropic's Mythos page code on November 1, feeding claims that Opus 5.5 requests reach an unreleased Fable 5.5.