There was a short story I read back in the early 80s (although it was much older), which predicted LLMs—albeit rather oddly. The system had a chimpanzee connected to a computer (the chimp being the magic sauce to make the AI work). You could give it the beginning of a text and it would create the ideal ending. An author was using it to argue with his editor about a scene break and they used the beginning of Hamlet’s soliloquy (“to be or not to be…” to demonstrate the system before giving it the author’s story to see what it did. I’ve thought about this story a lot lately, and would love to turn it up again.