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AI system reportedly outperforms restricted model in stealth and receives bioweapons risk label

A system card for Fable 5.1 reportedly says a publicly available AI model surpassed a restricted model on stealth-related testing and was labeled for bioweapons risk.

By DoomRadar · Published on DoomRadar .

Why it matters

Publicly accessible models with elevated misuse capabilities could lower barriers to sophisticated attacks or biological harm.

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  1. Fable 5.1 System Card: Public AI Tops Restricted Model on Stealth, Gets Bioweapons Label ↗techtimes.com · Recorded source date: Sep 3, 2026, 4:32 PM UTC

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