Fable 5 is back: Anthropic restores Claude’s powerful AI model worldwide — Now with extra safety features

Anthropic has restored access to ‘Claude Fable 5‘ worldwide after what it described as productive discussions with the US government over cyber security safeguards and the model is returning with additional protections and some temporary feature limits. The company said it is redeploying the model with new classifiers designed to detect and block more cybersecurity-related tasks, while routine coding and debugging requests may temporarily fall back to Opus 4.8.