Performance of DeepSeek V3.2 and ChatGPT 5.1 in Musculoskeletal Triage and Differential Diagnosis of Outpatients With Low Back Pain: Multidimensional Comparative Study

Ziqian Ma   ^{1 *} , MD ;   Ruiyuan Chen   ^{1 *} , MM ;   Aobo Wang   ¹ , MD ;   Yu Xi   ¹ , MM ;   Minghui Liang   ¹ , MM ;   Shuo Yuan   ¹ , MD ;   Ning Fan   ¹ , MD ;   Jianwei Zang   ² , MM ;   Tianyi Wang   ¹ , MD ;   Lei Zang   ¹ , MD

¹ Department of Orthopedics, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China

² School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, China

*these authors contributed equally