Scott Aaronson (who is temporarily working for OpenAI) proposed a cryptographic scheme where the generated text can be watermarked without any decrease in quality.
It has most of the same problems you list, except it is much more robust against small changes to the text.
As of a few weeks ago, he mentioned that OpenAI had a working implementation and were discussing whether to start using it. I assume they'd tell people before they turn it on in prod, I see no advantage in secrecy.
It has most of the same problems you list, except it is much more robust against small changes to the text.
As of a few weeks ago, he mentioned that OpenAI had a working implementation and were discussing whether to start using it. I assume they'd tell people before they turn it on in prod, I see no advantage in secrecy.