1LLM1
#4AnthropicClosed weights

Claude Fable 5.1

Claude Fable 5.1 scores 53.4 on the Artificial Analysis Intelligence Index (highest reasoning-effort setting). List price $10 input / $50 output per 1M tokens.

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Overall
81.7
Input $/M
$10.00
Output $/M
$50.00
Context
1M
Released
Sep 1, 2026
Updated
Oct 3, 2026

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