Meta’s New AI Asked for My Raw Health Data—and Gave Me Terrible Advice

April 10, 2026

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(Wired) – Meta’s Muse Spark model offers to analyze users’ health data, including lab results. Beyond the obvious privacy risks, it’s not a capable stand-in for a real doctor.

Meta claims that Muse Spark was designed, in part, to be better at answering questions people have about their health. The company even worked with “over 1,000 physicians to curate training data that enables more factual and comprehensive responses,” according to Meta’s announcement blog.

As the new model rolls out to millions of users, I tested Muse Spark to see how it would respond to health-related questions. (Read More)