A Harvard-led trial comparing OpenAI's o1 reasoning model with human physicians in a Boston emergency department showed the AI correctly identified the exact or near‑exact diagnosis in 67% of cases, outpacing doctors who scored between 50% and 55%. When provided with more detailed patient information, the model's accuracy rose to 82% versus 70%‑79% for clinicians. Researchers caution the findings are not statistically significant and note the AI cannot assess visual cues or patient demeanor, but suggest the technology could serve as a rapid second opinion in emergency care. Read more →