Fable 5.1 refuses questions on Evoscale/Biohub papers, drawing 'Opus'ed' quip

nathanbenaich · x · 2026-09-05

Nathan Benaich (Air Street Capital) reports that Fable 5.1 flat-out refused his questions about the Evoscale/Biohub papers, joking he got "Opus'ed" — a nod to Anthropic's Opus models being notoriously strict with safety refusals. Another data point on safety guardrails over-blocking legitimate research queries.

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