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Nov 9, 2026

Anthropic releases Claude Fable 5.2 and Mythos 5.2 with 20% API cost reduction

Anthropic launched Claude Fable 5.2 and Mythos 5.2, achieving record benchmark scores including 41% completion of real freelance jobs, with tokens generated up to 30% faster and API costs cut by 20% versus the 5.1 generation.

Nov 9, 20265 sources

Top claims

▪Anthropic priced Claude Fable 5.2 and Claude Mythos 5.2 at $8 per million uncached input tokens and $40 per million output tokens, representing a 20% cost reduction over Fable 5.1 and Mythos 5.1, their predecessors
▪Anthropic's Batch API pricing for Fable 5.2 and Mythos 5.2 halves input and output rates to $4 and $20 per million tokens, respectively
▪Anthropic made Claude Fable 5.2 available on paid Claude plans, Claude Code, the Claude Platform, Amazon Web Services, Google Cloud, and Microsoft Azure

Subtopics

AI agents1 AI benchmarks1 AI coding1 AI cybersecurity1 AI Models1 AI safeguards1 Claude Code1 Claude Fable 5.11 Frontier models1 Gemini 4 Argon1 GPT-6 Astra1 OpenAI1

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