Ole Lehmann @itsolelehmann

2h ago

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wtf this guy just had Claude Sonnet 5 perform brain surgery on a living mouse the goal was to treat the mouse's epilepsy so it would stop having so many seizures. here's what Claude did: > it looked at 19 possible treatments and picked one that boosts the brain's natural calming chemical > it chose where to inject it based on where these seizures are thought to start > it worked out the exact injection point by averaging three research papers > it lowered the needle 4.3 millimeters into the mouse's brain > it injected a 20,000th of a teaspoon of the treatment over five minutes > it checked the live camera 32 times to watch for things like bleeding and the mouse woke up and recovered well! interestingly, Opus 5.5 and Opus 5 both refused the task because it involved real biology so Sonnet 5 got the job. and as far as the researcher knows it's the first time an AI has picked a treatment and then injected it into the brain of a living mammal.