Its funny how something like this get posted every few days and people keep falling for it like its somehow going to end AI. The people that make these models are acutely aware of how to avoid model collapse.

It's totally fine for AI models to train on AI generated content that is of high enough quality. Part of the research to train models is building data sets with a text description matching the content, and filtering out content that is not organic enough (or even specifically including it as a 'bad' example for the AI to avoid). AI can produce material indistinguishable from human work, and it produces material that wasn't originally in the training data. There's no reason that can't be good training data itself.