[PeterisP]

I'm not saying that Meta did it, but recent research shows that it is possible and hard to detect - https://arxiv.org/abs/2204.06974 - so if they really wanted to, they could.

[orbital-decay]

That paper is not about fingerprinting the arbitrary output of a specific model, which would allow Meta to track its usage in the results, e.g. tell a genuine text from a fake generated by their model. The paper implies giving the model some specific secret input only known to you.

I think the thread we're in is also based on the similar misunderstanding.