> with AI-generated content excluded from pre-training.

Though this is largely impossible these days, unless they pre-trained on pre-AI era data.

"how many of those shapes are rectangles?" "sounds like zero unless they are squares"

Adding "unless" to a statement makes it vacuous if the latter clause is weaker than the first clause. I find it hard to believe that a company willing to violate licenses would have scruples about lying about it.