The “watermark” is a statistical pattern in the output,

Where did you see that?

They added that the watermark “may persist through some editing” for anyone who thought they could get away with Claude’s newest update.

A watermark is generally a faint image, logo or text embedded into a picture or document to help prove ownership, while reducing theft and plagiarism.

However, Anthropic assures the embedded watermarks for AI-generated texts will not affect the readability of said texts, remaining invisible to the human eye.

The new embedded watermarks are meant to be detected by third party tools only, using coding that is unique to the text, even when copypasted.

AI companies use very specific language that sounds like an obvious thing, but really it's a weird interpretation that's worse.

Like, they flat out said "even when copy pasted".

That does not mean retyping wouldn't hide it.

It doesn't even mean copying and then "paste as plain text" would get flagged, it would likely pass.

If it was what you're saying, it would be a lot of false flags, especially on short texts.

It's way more likely they're just doing something to the output text, and it persists with the "copy/paste" just like when you copy/paste from an article, only to discover the text includes a plug for the website....

Like, this is literally why "paste as plain text" has always been a thing.

That's almost certainly all this is.

Especially since the article links to fucking polymarket tweet like it's a source