Claude Mythos 5: Anthropic Releases and Temporarily Suspends Claude Fable 5

Anthropic released Claude Fable 5 on June 29, 2026, but temporarily suspended access shortly after launch due to unforeseen issues. The model, which had been anticipated with an average release guess of July 2, 2026, is now unavailable as the company works on a fix.

OutYet.ai / Anthropic /providers/anthropic Claude Mythos 5 Is Claude Mythos 5 out yet? No. When is Claude Mythos 5 coming out? Claude Mythos 5 is not out yet. Readers guessing here settle on an average of Jul 2, 2026, drawn from 2 guesses. OutYet.ai rechecks Anthropic's official release surfaces every minute and flips this page the moment access goes live. Last checked Jun 29, 2026. Last checked 1 minute ago Wisdom of the crowd 3 days till release 2 guesses Pick your release guess June 29, 2026 July 1, 2026 August 1, 2026 Sign in /signin Benchmarks No benchmark scores published yet. Vibe Rating Community sentiment — how the user base feels about this model. Not a sourced benchmark. No Vibe Ratings yet — be the first to rate this model. Vibe Ratings open once this model is released — rate it after you’ve tried it. For now, you can guess its release date above. Community Consensus AI-generated from public community feedback — not a sourced fact. Not enough public feedback yet to summarize. Add a comment or a Vibe Rating to help build the community consensus. Discussion