I hear you, but I think you might miss my point, which is while LLMs are clearly trained on copyrighted material, what they produce (their output) is NOT a copy of a specific code snippet they were trained on in a way that you would say "that's a copy from this code base".

Open source also requires attribution for derivative works [1], not just verbatim copies.

[1] https://en.wikipedia.org/w/index.php?title=Derivative_work&o...

Thanks for that link to the definition and requirements for something to be considered a derivative work.

I think my interpretation, based on your link, holds: unless the LLM output (transformation) substantially bears the original source code author's creation and personality, there is nothing to give attribution to.