Copyright protects the expression of an idea, not the idea itself. Therefore, an LLM transforming concepts it learned into a response (a new expression) would hardly qualify as copyright infringement in court.

This principle is also explicitly declared in US law:

> In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery, regardless of the form in which it is described, explained, illustrated, or embodied in such work. (Section 102 of the U.S. Copyright Act)

https://www.copyrightlaws.com/are-ideas-protected-by-copyrig...