Claims: Anthropic Ships Claude Fable 5.1, More Than Doubling Its Predecessor on Key Benchmark

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Complete claim record (JSON) · Original source

1. title: Anthropic Ships Claude Fable 5.1, More Than Doubling Its Predecessor on Key Benchmark (alleges; supported) Source
2. url: https://decrypt.co/377078/anthropic-claude-fable-5-1 (alleges; supported) Source
3. summary: Fable 5.1 and its restricted sibling Mythos 5.1 arrive three months after export controls forced Anthropic to pull Fable 5 offline for 18 days (alleges; supported) Source
4. published: Tue, 01 Sep 2026 19:29:12 +0000 (alleges; supported) Source