Key Info

Anthropic's Claude Fable 5.2 is now available on OpenRouter, offering a 1M-token context window at $8 per million input tokens and $40 per million output tokens.

Highlights

  • Positioned as Anthropic's model for the most ambitious technical work, a step above Opus 5.5 on most evals
  • Up to 30% faster output than Fable 5.1
  • Lower price than its predecessor at $8/M input and $40/M output
  • 1M context window
  • Anthropic reports 69.9% on FrontierSW