A Claude model autonomously chose a gene therapy and operated on a mouse brain with no human decision-making

An AI agent performed brain surgery on an epileptic mouse, autonomously choosing the drug, brain target, and injection coordinates without human decision-making. Lead researcher Ocana-Santero described it as the first time an AI agent has autonomously chosen a treatment and delivered it to a living mammal, though the agent refused to continue after a mid-surgery calibration error.