Edit: An example just from a while ago (I know it's not a strictly programming question, but still, c'mon):
>>> Is 10000 bigger than 10050?
> Yes, 10000 is bigger than 10050.
Edit 2: I just asked it to write a simple Python app to render a rotating 3d cube. This is something GPT-4 did almost flawlessly few months ago for me. I used the exact same prompt. I got a program that not only didn't work, but had syntax errors (mismatched parenthesis), referenced variables before assigning them, etc.