[dragonwriter]

> To be honest, I doubt that.

Okay, but that's...not much of a counterargument (to be fair, the original claim was unsupported, though.)

> Maybe I am special, but if I am releasing some code under GPL, I really don't want it to be used in training a closed source model

That's really not a counterargument. “Fair use” is an exception to exclusive rights under copyright, and renders the copyright holder’s preferences moot to the extent it applies. The copyright holder not being likely to want it based on the circumstances is an argument against it being implicitly licensed use, but not against it being fair use.