OMM Newsroom
“Microsoft” said Thursday that its artificial intelligence system diagnosed complex medical conditions more than twice as accurately as physicians in simulated tests, citing research published in the journal Science, according to Anadolu Agency.
The company’s AI Diagnostic Orchestrator, “MAI-DxO,” achieved 83% accuracy across complex medical cases, compared with 36% for physicians using textbooks and online resources, “Microsoft” said. Physicians working without external reference materials achieved 22% accuracy.
Researchers assessed 304 complex cases drawn from The New England Journal of Medicine. The system brought together multiple AI agents to evaluate symptoms, select diagnostic tests and reach conclusions.
“MAI-DxO” also recorded 80% accuracy on more typical emergency department cases, compared with 47% for physicians, the company said.
System aims to reduce testing costs
“Microsoft” said the system could lower diagnostic testing costs by choosing fewer or less expensive procedures while maintaining high accuracy. In one cost-optimized configuration, it scored 81% on complex cases at less than half the estimated cost of comparative systems.
The company described the findings as progress toward “medical superintelligence,” its vision of AI systems capable of surpassing leading clinical teams in medical reasoning and care coordination.
Clinical evaluation planned in Boston
The results were based on simulated cases, not real-world clinical practice, and the comparison with physicians did not include specialist teams. “Microsoft” said further evaluation in clinical settings is needed to establish how the technology performs in patient care.
The company plans to assess the system in a prospective study with Beth Israel Deaconess Medical Center in Boston, comparing its diagnostic assessments with those of physicians in hospital settings.
