Are they, or are they collections of probabilities? If they are probabilities, and those probabilities change from model to model, that seems like they might be copywritable.

If Google, OpenAI, Facebook, and Anthropic each train a model from scratch on an identical training corpus, they would wind up with four different models that had four differing sets of weights, because they digest and process the same input corpus differently.

That indicates to me that they are not a collection of facts.