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Anthropic

Is Claude Fable 5 out? Yes, since June 9, 2026

Yes. Claude Fable 5 was released on June 9, 2026.

A browser notification for each confirmed release in this family. No account or email.

Have you used it? Claude Fable 5

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Lab
Anthropic
Family
Claude
Release date
Source
Anthropic · Claude Fable 5 and Mythos 5

What changed

  • context 1M tokens · Context window of Claude Fable 5. Claude Opus 4.8 is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price +100 % · Prompt price compared with Claude Opus 4.8, same tier in this family. Went from $5.00 / MTok to $10.00 / MTok. Lower is better.

About Claude Fable 5

Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...

Next Claude model to watch

Questions

When was Claude Fable 5 released?
Claude Fable 5 was released on June 9, 2026.
Who makes Claude Fable 5?
Claude Fable 5 is made by Anthropic.
What comes after Claude Fable 5?
Claude Sonnet 5, released on June 30, 2026.