Comment by tempestn

LLM output, as the author acknowledges here, is already non-deterministic. Next token probabilities are set, and tokens are chosen pseudo-randomly. As I understand it, this watermark is just going to be a matter of using a known seed and algorithm to make those pseudo-random choices, such that a signature can be detected. The important thing is, it's not replacing intentional choices with random ones, it's just generating pseudo-random results differently. Quality shouldn't be affected.