SITUATION EXPLAINED: Anthropic loosened Fable's bio safeguards, cutting fallbacks by about 85%. • A fallback is what happens when a safeguard fires, Fable hands the request to Opus 5 instead of answering • At launch Anthropic blocked almost all biology queries this way, accepting a flood of false positives • Total fallbacks now drop roughly 67% on Claude, 55% on Cowork, 17% on Claude Code, and 7% on the Claude Platform • Fable still falls back on dual-use requests: virology, toxicology, and…