That would only work for their own slop though. Anthropic cannot recognize Google’s watermark, only theirs.

I assumed the goal might be so they could check whether other models have been trained on their output. Like anthropic using that as a “proof” when they start whining again about Chinese “distillation attacks”.

Of course, since they’re the only ones able to check their watermark, it would be rather shit as evidence anyway. “We’ve run the numbers, and we know you can’t, but trust us, this chatbot is totally copying ours!”