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Harvard fellow 'deeply concerned' over efforts to build bioweapons after Anthropic report

11 SEP 2026 · 22:10 ET·6:00·46.5K VIEWS·2.0× USUAL PACE

Dr. Ashish Jha, a Harvard Senior Fellow, expressed deep concern over the increasing use of AI, particularly open-source models, to develop biological weapons. He noted that while major AI companies like Anthropic have implemented guardrails, many open-source models lack such restrictions and have been downloaded millions of times globally. Jha highlighted a case where an individual, after being blocked by Claude, turned to an open-source model to pursue bioweapon development, emphasizing the urgent need for strengthened biodefense strategies.

WHY IT MATTERS

The increasing accessibility of AI tools for developing bioweapons poses a significant threat to global security, potentially empowering non-state actors and terrorist groups with the ability to create destructive biological agents.

ANTHROPIC CLAUDE AI BIOWEAPONS ASHISH JHA

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