By MANUEL PINILLA Every few months a new study reports that an AI model has outperformed doctors on a set of diagnostic cases. The latest one I’ve read came out in Science in October: Microsoft’s MAI-DxO, tested on 304 complex cases from the New England Journal of Medicine and run as step-by-step simulations, reached the correct diagnosis in about 83% of them. Primary care doctors and general internists, working on their own with reference materials, got 36%. Microsoft says the next step is a study with real patients. I build clinical AI, so these results matter to my work, but they...