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Anthropic releases new Mythos and Fable models amid RSI concerns
Anthropic launched Mythos 5.2 and Fable 5.2, claiming gains in coding, reasoning, vision, and clearer user communication. The new Fable model now costs $8 per million input tokens, undercutting GPT‑6 Astra, and delivers 30 % faster responses, with a premium option for even quicker inference. Fable 5.2 supports zero‑data‑retention policies via Enterprise Frontier Safeguards, addressing enterprise privacy concerns. The release follows a METR report suggesting Anthropic’s models may be approaching recursive self‑improvement, raising evaluation challenges.