Microsoft's AI outdiagnoses doctors at half the cost
Microsoft just unveiled MAI-DxO in Science, an AI diagnostic system that acts like a panel of virtual physicians debating complex cases across rounds. On tough New England Journal of Medicine cases, it hit 83% diagnostic accuracy compared to 36% for doctors using reference materials—all while cutting estimated test costs by more than half. Why it matters: instead of answering one-off multiple-choice questions, the AI learns to order the right sequential tests, moving clinical superintelligence closer to real-world hospital workflows.