Generative AI is already being utilized in various work applications, but a gender gap exists in its usage among university students. Specifically, while lower-performing women use ChatGPT as frequently as their male counterparts, higher-performing women tend to use it less. This disparity suggests that higher-achieving women may lack confidence in their ability to effectively prompt AI, influencing their engagement with the tool. Their perceived value of ChatGPT in enhancing their work may also play a crucial role in this phenomenon.