This will be very hard to get right because there is no way to prove that some content is AI generated. And where do you draw the line? How much of the work must be influenced by AI before it gets the AI label.

Even a regular photo today is likely touched up by AI. In post processing it was s common to use a lot of tools which under the hood are basically AI tools.

A regular spell checker is really the starting point for ChatGPT. Is your article an AI generated article if you used a spell checker? No? What if you used the spell check to pick different synonyms or rephrase some sentences?