Imagine a court which ruled that LLMs must have a reproducible mode, based on a session ID provided by the user, to establish a legally binding and deterministic connection between copyrighted LLM prompt and generated code.

Are LLM vendors allowed to permanently archive user-copyrighted prompts? Presumably the vendor's EULA can force the user to grant a non-exclusive license for any purpose.

> If you feed it the exact same prompt again, you can get something quite different back

If one trusted an LLM to generate code from the first prompt, it might be worthwhile to periodically evaluate new code generated from the same prompt. E.g. can the LLM generate a better implementation, or does testing of new output identify an ambiguity in the first prompt? Would a newbie developer have written better code after N months/years of experience?