SOURCE-LINKED INTELLIGENCE

Introducing Claude Fable 5.1 and Claude Mythos 5.1

Anthropic News · article · Sep 1, 2026 · UTC

Our most advanced models for coding and knowledge work. Their research capabilities also offer an early glimpse of how AI models will contribute to scientific progress.

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Evidence & attribution

Anthropic News · 2026-09-01T00:00:00.000Z

First collected: 2026-09-19T21:50:47.018Z. This is not the publication date.