[IshKebab]

> Would you use an AI text generator to write a thesis? No, there's a risk a whole chunk of it will be considered plagiarism because you have no idea what the source of the AI output is, but you know it was trained with unknown copyrighted material.

Of course, but that's a separate issue. We're not talking about whether the output of the AI is copyrighted. We're talking about whether it's ok for it to learn from copyrighted material.

Again you can say exactly the same about humans. I am perfectly capable of plagiarising or outputting copyrighted material. That doesn't mean it's illegal to learn from that material, just to output it verbatim.

So the fundamental issue is that it's harder to tell when an AI is plagiarising than it is when you produce something yourself. But that is a technical (and probably solvable) issue, not a legal one. And it's not the subject of this lawsuit.