I would need to read it.....
Also, I use chat gpt. The free version uses 4o for a bit. When it runs out, just wait, as the downgrade sucks.
I don't typically use it for writing the actual story. I'll give it my plan/ideas, and help me flesh it out.
A prompt is this: I'm writing a Undertale AU/crossover in which Frisk is a timelord. He will become the Doctor later. (blah blah so on and so forth what I've got).
then I ask for character help or ideas for where to take it.