Comment by Retric
> is clear that if they read Harry Potter and reproduce it on demand as a party trick that would be fair use.
Actually no that could be copyright infringement. Badly signing a recent pop song in public also qualifies as copyright infringement. Public performances count as copying here.
> Badly signing a recent pop song in public also qualifies as copyright infringement
For commercial purposes only. If someone sells a recreation of the Harry Potter book, it’s illegal regardless whether it was by memory, directly copying the book, or using an LLM. It’s the act of broadcasting it that’s infringing on copyright, not the content itself.