Comparative Performance of Medical Students, ChatGPT-3.5 and ChatGPT-4.0 in Answering Questions From a Brazilian National Medical Exam: Cross-Sectional Questionnaire Study

Mateus Rodrigues Alessi   ¹ , MD ;   Heitor Augusto Gomes   ¹ , MD ;   Gabriel Oliveira   ¹ , MD ;   Matheus Lopes de Castro   ¹ , MD ;   Fabiano Grenteski   ¹ , MD ;   Leticia Miyashiro   ¹ , MD ;   Camila do Valle   ¹ , MD ;   Leticia Tozzini Tavares da Silva   ¹ , MD ;   Cristina Okamoto   ¹ , MD

¹ School of Medicine, Universidade Positivo, Curitiba, Brazil