> I might be crazy, and I'd love to hear from somebody who knows about this, but I've been assuming that AI companies have been pulling GPL code out of the training material specifically to avoid this.

Haha no.

https://windsurf.com/blog/copilot-trains-on-gpl-codeium-does...

And just in the last two days, AI generating LGPL headers (which it could not do if identifying LGPL code was pulled from the codebase) and misattributing authors:

https://devclass.com/2025/11/27/ocaml-maintainers-reject-mas...