• Study: Meta AI model can reproduce almost half of Harry Potter book

    From Ted Nolan @21:1/5 to All on Mon Jun 23 18:40:13 2025
    https://arstechnica.com/features/2025/06/study-metas-llama-3-1-can-recall-42-percent-of-the-first-harry-potter-book/


    In recent years, numerous plaintiffs--including publishers
    of books, newspapers, computer code, and photographs--have
    sued AI companies for training models using copyrighted
    material. A key question in all of these lawsuits has been
    how easily AI models produce verbatim excerpts from the
    plaintiffs' copyrighted content.

    ...
    ...

    These results give everyone in the AI copyright debate
    something to latch onto. For AI industry critics, the big
    takeaway is that--at least for some models and some
    books--memorization is not a fringe phenomenon.

    On the other hand, the study only found significant
    memorization of a few popular books. For example, the
    researchers found that Llama 3.1 70B only memorized 0.13
    percent of Sandman Slim, a 2009 novel by author Richard
    Kadrey. That's a tiny fraction of the 42 percent figure for
    Harry Potter.

    and of course some wag immediately asked if Meta AI can quote the
    end of "A Song of Ice and Fire"...
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