Anthropic’s Claude Fable is a version of Mythos the public can access today

June 9, 2026 Rebecca Bellan

Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like cybersecurity and biology.

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Rivian starts deliveries of its all-important R2 SUV
Rivian starts deliveries of its all-important R2 SUV

Founder and CEO RJ Scaringe has called it "maybe the most important thing we've launched to date."