That would only apply to repositories. But to train these models, you need hundreds of terabytes of diverse data from the internet. Up until now a relatively st

That would only apply to repositories. But to train these models, you need hundreds of terabytes of diverse data from the internet. Up until now a relatively straight-forward scraper would yield "pristine" non-AI-generated content but now you would have to filter arbitrary websites somehow. And getting the date of publication for something might be difficult or highly specific to a particular website and therefore hard to integrate into a generic crawler.