Fable 5.1 strong at biology but frequent refusals limit utility

kenbwork · x · 2026-09-02

Arvind Narayanan notes that while Fable 5.1 demonstrates meaningfully better scientific judgment than Opus 5 when it answers, its broad, context-dependent, and often delayed refusals severely limit its practical utility in biology. The measured capability and usefulness remain highly conditional due to these safeguards.

Original post →

More from Models

Models channel →