A bit weird that we write articles on how ChatGPT did something and it worked (for once). I also had some success with some use cases. Not so much with others. For example it can code JavaScript and write nice boilerplate, example clicker games and some colorful demos. It's not so good at programming Arduino microcontrollers... Granted, patching binaries and BIOS files is a bit of a weird one. I wouldn't have expected it do something useful there.

Could it be that any bios code it happened to be trained on was probably written by someone who knew what they were doing and not a random mishmash of code like you might get for a less niche purpose? Interesting.