微软发布了其AI医学诊断系统的研究成果，声称该工具在诊断复杂疾病方面的表现优于人类医生12。根据微软的数据，其AI系统MAI-DxO在复杂医学案例中的诊断准确率达到83%，相比之下全科医生和内科医生单独工作的准确率仅为36%2。这项研究已发表在顶级学术期刊《科学》上1。
微软AI首席执行官穆斯塔法·苏莱曼表示这一成果标志着朝向"医学超级智能"迈进的一步2。
在技术细节方面，微软采用OpenAI的GPT-5和GPT-5.5模型取得了最佳结果2。当单独使用GPT-5时，诊断准确率为78.9%，成本约为8400美元每个案例；而配合DxO系统则可将成本降低约3000美元，同时将准确率提高约4个百分点2。在GPT-5.5的支持下，DxO将复杂案例准确率从72%提升至近87%2。相比之下，Gemini 2.5 Flash单独使用时的准确率为46.4%，配合DxO后提升至近69%2。
微软正计划将这一技术从研究阶段推进至临床应用2。公司将与Mayo Clinic合作训练医疗基础模型，计划于明年发布2，并与Beth Israel Deaconess Medical Center开展真实世界临床评估研究2。苏莱曼表示，公司预期在24至36个月内医疗模型的性能将提升一个数量级，并计划在2027年实现医疗记录的突破性进展2。
Microsoft has unveiled research demonstrating that its artificial intelligence diagnostic system surpasses human physicians in identifying medical conditions, with findings published in the peer-reviewed journal Science 1. The company's AI tool, known as MAI-DxO, achieved an 83% accuracy rate when evaluating complex medical case simulations, compared to 36% for general practitioners and internal medicine specialists working independently 2.
The system leverages OpenAI's GPT-5 and GPT-5.5 models to enhance diagnostic precision 2. When using GPT-5 alone, the model reached 78.9% accuracy at a cost of approximately $8,400 per case; the DxO component reduced costs by about $3,000 while improving accuracy by roughly 4 percentage points 2. With GPT-5.5, DxO elevated complex case accuracy from 72% to nearly 87% 2. Google's Gemini 2.5 Flash showed substantial improvement when paired with DxO, rising from 46.4% to nearly 69% 2.
Microsoft AI Chief Executive Mustafa Suleyman characterized the achievement as the arrival of practical artificial intelligence in healthcare, stating that the breakthrough "is finally here" 1. He framed the development as a step toward "medical superintelligence" and outlined ambitious timelines, projecting that medical AI models could see performance improvements of an order of magnitude within 24 to 36 months, with significant advances in medical records processing anticipated by 2027 2.
The company plans to collaborate with Mayo Clinic to train healthcare foundation models, with a launch targeted for next year 2. Additionally, Microsoft will conduct real-world clinical evaluation research in partnership with Beth Israel Deaconess Medical Center 2.
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