Can Microsoft's new AI outdiagnose your doctor?

I had to wait over 45 minutes in a crowded waiting room with a bunch of sick idiots for the computer to see me. Screw this, I'm going back to my MD.

MICROSOFT IS READY TO SCRUB IN

Quarts Media

July 2,2025

Microsoft’s new doctor bot is making rounds — and making waves. The company says it’s one step closer to diagnosing the future after unveiling an AI-powered system (called MAI-DxO) that it claims has correctly solved up to 85% of New England Journal of Medicine case studies. That’s more than four times the success rate of experienced human physicians, according to Microsoft’s internal research.

The tool acts like a virtual panel of doctors, combining multiple AI models — including GPT, Claude, Gemini, and Grok — to work through patient cases step by step. MAI-DxO starts with limited data, asks targeted follow-ups, suggests tests, challenges assumptions, and spits out a diagnosis. Microsoft’s AI chief executive officer, Mustafa Suleyman, called this move “a big step toward medical superintelligence.”

The tech behemoth is betting big on AI-powered medicine. Microsoft has already rolled out RAD-DINO (a radiology assistant) and Dragon Copilot (a voice-first tool for clinicians), all under the banner of more accurate, trusted, and scalable healthcare delivery. The American Medical Association says more than 70% of physicians are already using AI in some form. Bill Gates even told The Tonight Show that AI could replace doctors entirely — within a decade. Microsoft, which already has over 50 million health-related queries daily on Bing and Copilot, says AI is already a frontline triage tool, even before you make it to the clinic.

For now, the robots aren’t scrubbing in and doctors aren’t out of a job. But if Microsoft’s diagnosis holds, your next second opinion might not come from a doctor but from a device that never went to medical school but still somehow aced the test.