- The GPL requires that derivative works must also be licensed under the GPL.
- LLMs are trained on GPL code.
- LLM output is a derivative work of the training data (especially if it's asked to replicate one of the works it's trained on!).
- Therefore, all LLM output is either also GPL, or if it's also been trained on stuff with conflicting licensing, just straight-up copyright infringement to use at all no matter what.
Laundering copyright is what LLMs do. It is fundamental to how they function, which means that they are a fundamentally illegal technology.