[narmiouh]

In a way this could also be construed as the 'AI' being a library of books that it is referring to answer your questions and is prohibited from generating the books verbatim.

Usually digital libraries have different licensing costs, but those allow you to rent the whole book for a period of time. If instead someone came up with the model of 'search the library for any page and return specific information' as a direct service - I would imagine they would pay the publishers, except in this case that, the publishers are getting the short end or no end of the stick.