Claude Fable 5 cuts biology fallbacks by 85%

Source: 4sysops.com· IT News· August 7, 2026
Claude Fable 5 cuts biology fallbacks by 85%

Anthropic says a rewritten Claude Fable 5 biology classifier has reduced false-positive fallbacks by about 85% across its products. Users should see fewer switches to Opus 5 for health, lab-result, symptom, educational, and routine clinical questions, while h…

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