Anthropic on November 9, 2026 released Claude Fable 5.2 and Claude Mythos 5.2, two configurations of one model designed for difficult technical work. Standard pricing is $8 per million input tokens and $40 per million output tokens; direct Mythos access remains limited to vetted cybersecurity and life-sciences users. Anthropic reports output generation up to 30% faster than the Fable 5.1 and Mythos 5.1 models. An optional fast mode costs $16 per million input tokens and $80 per million output…
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Anthropic’s Fable 5.2 Pairs 1M-Token Context With Faster Output