> So what's wikipedia doing vs what LLMs do?
For Wikipedia, people look up sources to create some original work. They do it while citing the original work but that's not the major point. That's clearly all lawful, you are allowed to do that.
For LLMs, people (or let a software do it, doesn't really matter) copy original work and use it for commercial purpose. If that's allowed fully depends on the license of the original work, but I didn't think anybody really beliefs that OpenAI and others check the license for every single original work they ever used. So it's basically the biggest copyright infringement ever.
Everything else is just framing coming from big companies.
So, the problem already starts while training the model.
Regarding its output, if it happens to output work that falls under copyright, the LLM company must make sure that it obeys the license connected to it (i.e. citing or not relaying the result to the user). Obviously, nobody does that and it's also not generally possible to do that anyway. So that would be second biggest copyright infringement ever that only works because it's hard to track when such an infringement happens.
So, if asked "could we use your work for our commercial software that might output something that would be still protected by your copyright, but nobody will be able if or when it happens and we won't check and won't tell the users" nobody would have given consent. So they went "duck it, we are talking about billions of dollars and AI is great etcetc., so let's just do it anyway"