Yes, that’s true. In that aspect, it would be better to have an LLM which is trained on Free Software only and which returns copyleft licensed code. However, I think using LLMs for code analysis is not affected by that. Maybe there will turn out a legal difference between code that is entirely LLM generated and code where humans do most of the editing. One popular legal position is that LLM generated code itself is not subject to copyright law. That might be re-adjusted if the LLM has actually regurgitated training code.