I am pleased (I think) to announce that I have just submitted to ChatGPT an exam, consisting entirely of questions taken from recent final exams in my sophomore-level intermediate economics class, and it has earned a score of zero. Not only did it earn a score of zero, but several of its answers would have merited negative scores if I were allowed to give them. The answers are in every case egregiously wrong, showing absolutely zero understanding of the basics.
I am frankly a little surprised; I had expected it to get at least a few things right.
Edited to add: If you are looking for the details, look here.