Anthropic Updates Claude Biology Safeguards, Yet It Still Refuses Basic Questions

iamaliveix · x · 2026-08-08

Anthropic officially announced an update to Claude Fable 5's biology safeguards to reduce false positives, reportedly cutting biology-related fallbacks by 85%. However, user tests reveal the model still refuses to answer basic questions like "how babies are made."

The company stated that for dual-use requests (like virology, toxicology, and molecular design), Fable will continue to fall back to Opus 5, meaning it is not yet fully suitable for professional biological research and drug development.

Related event: Anthropic Updates Claude Biological Safety Guardrails, Cutting False Positives by 85%(6 posts)→

Original post →

More from Fun

Fun channel →