I heard about Google's DeepMind has launching a watermarking tool called SynthID, which can detect AI-generated images by using two neural networks but its kind of a black box and there are probably other ways to circumvent the filters as well. Also companies may start using cryptographic metadata to tag AI-generated content with the C2PA protocol which is supposed to allow other ais to easily detect if images are ai or not, I'm a bit out of my depth at this point but to me it doesn't seem like this is going to be reliable because not everyone will adhere to this standard and there are already tools that can eliminate metadata from images, so who knows how reliable this is.

Me personally, I think this all talk just so people feel safe that we will always sure of whats real and what isn't and not an actual solution