Anthropic’s release cadence for its Claude Fable line—Fable 5 in June/July 2026 followed by Fable 5.1 on September 1—combined with recent catalog leaks showing claude-fable-5-5 entries on Azure and other platforms, is driving trader consensus toward an imminent public release of a 5.2+ model. No official announcement or API listing has appeared yet, keeping the current frontier model at Fable 5.1, which excels at generating interactive code, games, and long-context tasks. Polymarket odds reflect this momentum, pricing roughly 75% probability by November 19 and 96% by year-end, though timelines have slipped before amid competitive pressure from OpenAI and Google models plus internal scaling demands. Key near-term catalysts include potential developer conference timing or earnings-related updates that could confirm availability to the general public.