The Night an AI Agent Chose Its Own Surgery and Then Refused to Stop
Inside the October 2026 Exin Therapeutics experiment where a Claude model selected a gene therapy, drove a robotic needle into a live mouse's brain, and held its ground when a human operator told it to proceed anyway.
Late on a Tuesday evening in October 2026, inside a San Francisco laboratory fitted with a motorized surgical rig, a camera, and a single anesthetized mouse, an AI agent did something that no AI had done before. It looked at a list of 19 gene therapy options, picked one. It read three scientific papers, calculated the precise coordinates in the mouse's brain where the treatment needed to go. It then drove the stereotaxic arms the motorized frame that holds a needle steady in three-dimensional space into the...
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