If the training set contains verbatim (A)GPL code does this mean that Copilot also should be distributed by Microsoft under GPL? Because without it Copilot (as it is distributed by Microsoft) couldn't be built, wouldn't it make it a derivative work of GPL'd code (and obviously every other license)? I see a lot of people comparing human learning to machine learning in the comments, but there is a huge difference - we…
No, see Authors Guild v. Google. Even without a license or permission, fair use permits the mass scanning of books, the storage of the content of those books, and rendering verbatim snippets of those books. The Google Books site is not a derivative work of the millions of authors they copied from, and if they did copy any coincidentally GPL, AGPL, or creative commons copyleft work, the fair use exception applies befo…
That case required that the output be transformative, in that "words in books are being used in a way they have not been used before".
Copilot only fits the transformative aspect if it is not directly reciting code, that already exists in the form that it is redistributing. So long as it does so, it fails to meet the criteria.