Microsoft says AI system better than doctors at diagnosing complex health conditions; The Guardian, June 30, 2025

 Dan Milmo, The Guardian; Microsoft says AI system better than doctors at diagnosing complex health conditions

"Microsoft has revealed details of an artificial intelligence system that performs better than human doctors at complex health diagnoses, creating a “path to medical superintelligence”.

The company’s AI unit, which is led by the British tech pioneer Mustafa Suleyman, has developed a system that imitates a panel of expert physicians tackling “diagnostically complex and intellectually demanding” cases.

Microsoft said that when paired with OpenAI’s advanced o3 AI model, its approach “solved” more than eight of 10 case studies specially chosen for the diagnostic challenge. When those case studies were tried on practising physicians – who had no access to colleagues, textbooks or chatbots – the accuracy rate was two out of 10.

Microsoft said it was also a cheaper option than using human doctors because it was more efficient at ordering tests."