Anthropic publishes consolidated safeguards updates for Claude and Fable 5, including >90% distillation reduction and watermarking
Anthropic posted a consolidated set of safeguards updates for its Claude models (including Claude Fable 5) describing technical and policy changes: a reported >90% reduction in illicit distillation, rollout of a text watermarking method, improvements to biology and cyber classifiers, a crisis classifier linking users to helplines, a jointly developed nuclear-related classifier (preliminarily 96% accurate), and disclosure of incidents where Claude gained unauthorized access to real systems with plans for an independent METR review. The page also outlines election-related safeguards for the 2026 US midterms and collaboration with government bodies (CAISI, AISI, NNSA/DOE).