Anthropic Releases Claude Fable 5 as Its First Public Mythos-Class Model

Anthropic has released Claude Fable 5, its first generally available Mythos-class AI model, with built-in safeguards that route some high-risk requests to Claude Opus 4.8 instead. The company announced Claude Fable 5 and Claude Mythos 5 on June 9, 2026. Fable 5 is based on the same underlying model as Mythos 5, but Anthropic added […] The post Anthropic Releases Claude Fable 5 as Its First Public Mythos-Class Model appeared first on VPN Central.