Distribution of diagnoses within the cohort (N = 114). The category of other diagnoses includes diagnoses appearing in the cohort only once: histoplasmosis, acute Human Immunodeficiency Virus infection, acute Hepatitis A Virus infection, and cellulitis caused by Streptococcus pyogenes were suggested by the model as the most likely diagnosis; bacterial pneumonia would have been diagnosed through an unrestricted workup; ChatGPT-4o failed in diagnosing disseminated gonococcal infection, Respiratory Syncytial Virus infection, and acute Q fever were