Agreeing on a unified warning design for AI generated content and making it standard and available to all users seems like the right way forward.
Markus makes great points, I agree it should be descriptive, succinct, and briefly explain to less informed the dangers of AI generated content, linking to in-network posts for more in-depth explanations.
The point to use an image or icon "so that who has already read it in the past can easily recognize and skip it" as Markus points out seems like an excellent idea I'll also plagiarize.
I'll make one important distinction to Markus's post though. As already well justified by other members in the linked meta post I don't personally think AI generated content has any place in our network. As such, I'd take a stricter approach and vote for entirely removing content that is clearly AI generated.
But one could then ask: "If AI generated content is entirely removed, then why do we need these warnings?". I'd say we reserve them for posts where it isn't immediately clear the content was AI generated or not, or there is reasonable doubt about its origin, like cases where the content was heavily edited, or there isn't enough content to ascertain the origin.
With that in mind I'd go for something along the lines of
Warning, Potential AI generated content⚠️
This post is suspected to have been generated with the help of an artificial intelligence, chat bot, or other language model tools without proper attribution.
There is reason to believe this post was not written by a human due to its structure, and grammatical construction, and has been marked by our community.
Current AI chat bots are a language models, that means they are like a parrot, they can mimic human language well, but they are built to write seemingly logical, seemingly factual grammatically valid text, rather than actually be correct, like a human would.
The veracity of the following content cannot be ascertained.
See the Concerns regarding AI generated content.
Copy-pastable snippet:
> ### ![AI Icon](https://i.sstatic.net/zNrQD.png) Warning, Potential AI generated content⚠️
> **This post is suspected to have been generated with the help of an artificial intelligence, chat bot, or other language model tools without proper attribution.**
>
> There is reason to believe this post was not written by a human due to its structure, and grammatical construction, and has been marked by our community.<br>
> Current AI chat bots are a language models, that means they are like a parrot, they can mimic human language well, but they are built to write **seemingly** logical, **seemingly** factual grammatically valid text, rather than actually **be correct**, like a human would.<br>
> The veracity of the following content cannot be ascertained.
> See the [Concerns regarding AI generated content](https://meta.stackexchange.com/q/384396).