Leak: 'Mythos 5.5' spotted in HTML source of Anthropic's official website

kimmonismus · x · 2026-11-01

AI leak tracker kimmonismus reports that an anonymous tipster (@SergioOSINT) found "Mythos 5.5" listed in the HTML source code of Anthropic's official website, hinting at an unreleased Anthropic model. Unconfirmed — Anthropic has not commented.

Related event: Anthropic Website Code Leaks Unreleased Claude Mythos 5.5 Model(4 posts)→

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