AI That Diagnoses Better Than Doctors Is Already Here.

A 2025 Microsoft study revealed that its AI system, MAI-DxO, correctly diagnosed 85% of complex medical cases—four times more accurately than experienced physicians. Tested on 304 real-world clinical cases from the New England Journal of Medicine, the AI also ordered 20% fewer diagnostic tests, suggesting it can improve both accuracy and cost-efficiency in healthcare.

By analyzing symptoms, medical history, and test results, MAI-DxO outperformed top physicians in rare or complicated cases, identifying conditions that even seasoned experts missed. The system is designed to eventually integrate into tools like Bing and Copilot, potentially offering instant, expert-level diagnostics globally—even in areas with little or no access to physicians.

Expect AI to become your digital second opinion—supporting doctors, catching rare diseases earlier, and lowering costs by avoiding unnecessary tests.