Claude Fable 5 Explained: Features, Limits & Setup (2026)
Claude Fable 5 is Anthropic’s most powerful AI model ever released to the public – and it runs on the same foundation as Claude Mythos, the restricted model previously available only to critical infrastructure defenders and government partners. Launched on June 9, 2026, Fable 5 brings Mythos-class intelligence to anyone with a Claude account, API…