Earlier quoted context omitted.
I think the argument is somewhat more interesting if the book was pirated --both you as an individual and OpenAI as a company could be sued for that. But I really don't see how you could prove OpenAI did that, since ChatGPT could have learned from existing summaries on Wikipedia and Goodreads.
It seems pretty easy to prove that, since they admitted it in public. Read the article. This isn't about the question of LLMs being copyright infringement, this is about Meta and OpenAI admitting that they had pirated copies of those books.
> It seems pretty easy to prove that, since they admitted it in public.
Can you highlight/link to where OpenAI have admitted this? As far as I'm aware, OpenAI are still secretive about their training datasets.