Performance of ChatGPT-4o and Four Open-Source Large Language Models in Generating Diagnoses Based on China’s Rare Disease Catalog: Comparative Study

Wei Zhong   ¹ , MD ;   YiFan Liu   ¹ , MD ;   Yan Liu   ¹ , MD ;   Kai Yang   ¹ , PhD ;   HuiMin Gao   ¹ , MD ;   HuiHui Yan   ¹ , MD ;   WenJing Hao   ¹ , MD ;   YouSheng Yan   ^{1 *} , MD ;   ChengHong Yin   ^{1 *} , MD

¹ Department of Prenatal Diagnosis, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China

*these authors contributed equally