Unverified50% confidenceReleaseExact time
This update introduces a new default Fable model, Claude Fable 5.1 (claude-fable-5-1), offering a context window of 1 million tokens.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/11/2026
First Seen
Valid until: 12/10/2026
Sources
Related Entities
Related Claims
UnverifiedIn Claude apps gateway sessions, fable and best will still resolve to Fable 5; users need to manually select 5.1 in /model to enable the new model.68% similarUnverifiedAnthropic's next-generation frontier model Claude Fable 5.2 is reportedly ready and is regarded as a significant upgrade over Fable 5.1.64% similarUnverifiedThe free-use window for Fable 5 (Claude's next-generation model) within Claude Code is expected to end on June 22, 2025, with API-only access starting June 23.60% similarVerifiedAnthropic officially released the first model in the Claude 5 series, named Claude Fable 5.59% similarPartially VerifiedClaude Fable 5 is a version in the Claude model series specifically optimized for creative coding and game development scenarios.59% similar
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