AISN #75: Anthropic Releases Fable, the US Government Restricts it
About this episode
The episode discusses Anthropic's release of Fable 5 and the US government's restrictions on it, along with a call for slowing AI development.
Also: Anthropic's proposal for the AI industry to collectively slow down. Welcome to the AI Safety Newsletter by the Center for AI Safety. We discuss developments in AI and AI safety. No technical background required. In this edition, we look at Anthropic's release of its latest model, Fable 5, and the US government's subsequent order to restrict it. We also discuss Anthropic's recent call for the “option to slow or temporarily pause frontier AI development.” Listen to the AI Safety Newsletter for free on Spotify or Apple Podcasts. The US Government Restricts Fable Days After its Release On June 9, Anthropic released Claude Fable 5 to the public. The model is significantly more capable than previous releases; it is the highest-scoring model on the benchmark Humanity's Last Exam, achieving 53.3% compared with Claude Opus 4.8's score of 45.7%. Anthropic described Fable as having similar capabilities to Claude Mythos Preview—a model announced in April that the company deemed too good at finding cyber vulnerabilities to be safe for general release. Anthropic also made Mythos 5, a version of Fable without strict bio or cyber safeguards, available to a small number of trusted…
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