[ithkuil]

Indeed. Case closed. If an AI produces verbatim code owned by somebody else and you cannot prove that the AI hasn't been trained on that code, we shall treat the case in exact the same way as we would treat it when humans are involved.

Except that with AI we can more easily (in principle) provide provable provenance of training set and (again in principle) reproduce the model and prove whether it could create the copyrighted work also without having had access to the work in its training set