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2026/11/10 15:52 (UTC+8) · New Model · Anthropic 🚀 Claude Fable 5.2 is live on APIYI at $8 input / $40 output per 1M tokens, 20% below 5.1 Anthropic released Fable 5.2 on November 9 with a 1M-token context window, 128K max output, and generation up to 30% faster than 5.1; FrontierCode 2.0 rises from 32.4% to 49.1%. claude-fable-5-2 and claude-fable-5-2-thinking are available in the ClaudeCode, Claude_Enterprise, Default, and SVIP groups, with cache reads at $0.20 per 1M tokens and all four billing items matching the official list. Claude_Enterprise is the more stable Claude official-passthrough group for enterprise support and emergency needs, at a 1.2x multiplier. Two breaking changes return errors when migrating from 5.1: the prefix check now applies to every account, and thinking blocks are tied to the model that produced them. The Claude_Reverse group is not available yet.
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