Type: AI model
Fable 5 is the shorthand for Anthropic’s Claude Fable 5, the publicly available, safety-gated flagship of the fifth Claude generation released June 2026. It tops most benchmarks among generally available models, including roughly 80% on SWE-Bench Pro. GROUNDING tracks Fable 5’s benchmarks, guardrails, and relationship to the partner-only Mythos 5.
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Category: Other AI Ecosystem