Anthropic Says It Blocked Possible Efforts to Build Biological Weapons

The New York Times · Dustin Volz · last updated September 10, 2026 – 9:41 AM

In a new report, the A.I. start-up added that it could not determine whether the research was legitimate or nefarious, leading the company to shut down the work.

Anthropic said it had disrupted several potential plots this year by scientists who used its leading artificial intelligence models to conduct research that could have helped develop biological weapons.

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