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Using AI to help physicians diagnose rare genetic diseases affecting children

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Summary

Researchers from Boston Children's Hospital's Manton Center, Harvard University and OpenAI used the OpenAI o3 Deep Research model to reanalyze 376 previously unsolved rare-disease cases. The model produced evidence-linked candidate explanations that specialists reviewed, and physicians established diagnoses in 18 cases, an additional diagnostic yield of 4.8%. The study was published June 18, 2026, in NEJM AI.