Anthropic has released Claude Fable 5, a new artificial intelligence model that brings much of its restricted Mythos technology to the public while attempting to block its most dangerous capabilities. Fable 5 generally allows users to access Mythos-class reasoning for complex tasks. When Anthropic’s systems detect requests involving high-risk areas, such as biological weapons or software exploitation, the query will instead be handled by the older Claude Opus 4.8 model. “We wanted to be able...