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Changelog
Oct 9, 2026

Claude Fable 5.1

Claude Fable 5.1, Anthropic's most capable model, is now available as a premium option in the advanced model picker.

Claude Fable 5.1 (claude-fable-5-1) is now available as a premium option for authoring.

Claude Fable 5.1

  • Anthropic's most capable model, built for the hardest long-horizon reasoning and agentic work.
  • Find it under the advanced options wherever you pick a text/reasoning model (static ads, carousels, rich media, video playgrounds, and more). Your defaults don't change.
  • Priced at $10 / 1M input tokens and $50 / 1M output tokens, with cached input at $0.25 / 1M tokens.
  • Static ads and carousels authored with Claude Fable 5.1 use the top credit tier, the same as GPT-6 Astra.
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Oct 4, 2026
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