If you can't trace the source then it's transformative use. If it matches training data then it needs to report the source like a search engine and place all responsibility on the user.

And fuzzy code matching could be easily implemented by using the a model similar to CLIP (contrastive) to embed code snippets.

> If you can't trace the source then it's transformative use.

That's not how "transformative use" works.

A list sorted by probability would be better than nothing. Would a GAN like Copilot be able to provide that?

Not easily. It's a rather opaque process.

And besides, let's get real, nobody would look at the links - it defeats the purpose of copilot.