18 Oct, 2026

OpenAI is adding invisible watermarks to ChatGPT and Codex text in the EU

OpenAI is preparing to add invisible watermarks to text generated by ChatGPT and Codex in the European Union. The watermark will not be visible when you read or copy the text. Instead, OpenAI says its new textGrain technology slightly changes the model’s word choices to create a statistical pattern that can later be detected. “Over […]

2 mins read

How Anthropic plans to watermark Claude’s AI-generated text

It could soon become easier to identify AI-generated content, even if it’s not the usual “It’s Not X, it’s Y” type of post you’d come across on LinkedIn and other socials. As you may be aware, the EU now requires AI companies serving its market to mark their AI-generated content so it’s easier to identify. […]

9 mins read

AI ‘watermark removers’ flood the web. Almost none can prove they work.

A market for removing AI watermarks has sprung up days after Anthropic disclosed switching on invisible marks in everything Claude writes, spanning a GitHub project with over 4,500 stars, a cluster of newly registered web tools, and at least one established AI detection evasion service. None of the claims about defeating the text watermark can […]

6 mins read