Mythos 5.5 spotted in Anthropic website source code, new model may be imminent
koltregaskes · x · 2026-11-02
A user reports that "Mythos 5.5" was spotted in the HTML source code of Anthropic's official website, suggesting a new model release may be imminent. The tip came via an anonymous email; Anthropic has not confirmed anything, and no details on timing or capabilities are known yet.
More from Models
- SemiAnalysis: safety classifiers sandbag scores of Opus 5.5 and GPT-6 Astra — morqon · 2026-11-02
- Liquid AI's 1.7B LFM3 becomes first local model to nail live fixtures lookup on a MacBook — NielsRogge · 2026-11-02
- Claude upgrade-page traffic rebounded to 17.6M in September, near May's 18.6M peak — firstadopter · 2026-11-02
- Open-source GLiNER-PII scrubs 13 identifiers from a discharge note in 550ms on GPU — MaziyarPanahi · 2026-11-02
- OpenAI Dots user says bloat and broken infra drove him to try newcomer Muse — Koala_Confused · 2026-11-02
- Fable 5.5 reportedly one-shots animation in pure code as Anthropic's coding bet pays off — Hesamation · 2026-11-02