Anthropic just launched Claude Fable 5, its first Mythos-class AI model – but it has new safeguards to prevent misuse and will ‘fall back’ to Opus 4.8 for queries in ‘high risk’ topics | IT Pro

Anthropic has launched Claude Fable 5, a high-performance Mythos-class AI model that features robust safeguards to prevent misuse. To mitigate risks in sensitive areas like cybersecurity, the model automatically reverts to Claude Opus 4.8 when high-risk queries are detected.