Claude Fable 5.2
by Anthropic · ID claude-fable-5-2 · Released 2026-11 · Proprietary
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ELO Score
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MMLU
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HumanEval
1M
Context Window
$8.00
Input Price
About Claude Fable 5.2
Anthropic's most capable generally available model, announced 9 November 2026 as the successor to Fable 5.1. 20% cheaper than Fable 5.1: $8 input / $40 output per million tokens instead of $10 / $50. Cache reads $0.20, cache writes $10 for five minutes and $16 for an hour. Optional fast mode generates up to 2.5x faster at $16 / $80. 1M-token context, up to 128K tokens per answer. Anthropic recommends Opus 5.5 for most everyday coding and knowledge work and Fable for the hardest technical tasks. In Anthropic's own table it scores 41.3% on the Remote Labor Index (Opus 5.5: 21.3%) and 64.9% on RoboDojo Sim (GPT-6 Astra: 29.8%); vendor-reported. Prices checked 10 November 2026. Not listed on the Arena text leaderboard as of 27 October 2026.
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