>>24536264 (OP)No
The closest I got was asking it to write a shitpost of a short story that got a bit out of hand (ended up being a col-war alt-history, more or less). I still had to give GPT ideas or it would write repetitively and predivtably. It never said any of my ideas were stupid, or they try that idea and it totally doesn't work, or whatever. (Although I suggested a few stinkers deliberately to test it -- it stopped short of taking "hey what if they invade the north pole to enslave santa's elves" seriously)
If you use it to do novel-length things it seriously cannot remember anything and needs constant corrections (e.g. forgetting names, people, events, talking about the impending fall of moscow (moscow fell years ago) (it forgot this many times))
It doesn't have much clue where the plot is going or how things connect, if you want to hear an update of something you have to ask about it or it will never get back to it. It rarely comes up with surprises. It managed a couple of times when I was starting but only because I wanted a shitpost and these would've been fairly obvious if I'd thought about it.
Also, tons of dumb metaphors. Stuff that really just doesn't make sense to any human but sounds vaguely poetic.