[pantsforbirds]

I had Grok summarize + evaluate the first chapter with thinking mode enabled. The output was actually pretty solid: https://pastebin.com/pLjHJF8E.

I wouldn't be surprised if someone figured out a solid mixture of models working as a writer (team of writers?) + editor(s) and managed to generate a full book from it.

Maybe some mixture of general outlining + maintaining a wiki with a basic writing and editing flow would be enough. I think you could probably find a way to maintain plot consistency, but I'm not so sure about maintaining writing style.