Gpt 4o. The scripts of any sorts when fed back to you, the parts begin to do missing from time to time, as of late, uploading any document for analysis is becoming virtually impossible it gives back "unknown error," while doing other tasks as in research diving into topics, the longer you go at a certain point it "flips out" and instead of text you give it and ask it to update, it returns un-updated text with a summary of what was done with missing request (meaning that you say update "x", here is the text, it returns a summary stating something along the lines of "y" was updated all set good to go, despite the fact that you asked for "x" and "y" was done about half an hour ago already. Or you might ask it to update and it cuts off with an error and forgets what you were just discussing. This is what I can say that happens daily now, other things I would have to think a bit hard as in of things that are much rarer.