It is probably not a derived work. To be a derived work it is not enough to simply use the original work in its construction; it must contain major copyrightabl

It is probably not a derived work. To be a derived work it is not enough to simply use the original work in its construction; it must contain major copyrightable elements of the original work. The weights and parameters present in the model do not seem to fit that description; generally you can’t copyright a bunch of numbers. That said, I don’t think this has been confirmed by a major court case yet, and I wouldn’t be surprised if that happens at some point.