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Monday, October 12, 2026Sources checked

ChatGPT

OpenAI will start watermarking ChatGPT’s text in the EU

By Aditya Mehta, TechCrunch

OpenAI will start watermarking ChatGPT’s text in the EU

Picture: TechCrunch

OpenAI will start adding an invisible watermark to text generated by ChatGPT and Codex in the European Union to comply with the EU AI Act, the company said Monday in a blog post. The EU AI Act’s transparency rules, which took effect on August 2, require AI companies to mark AI-generated content in a way other systems can identify. OpenAI said the watermark will roll out over the coming weeks to eligible ChatGPT and Codex users on all plans, but only in the EU. Developers using OpenAI’s API anywhere in the world can turn it on for select models starting today; it’s off by default. OpenAI said it is not making text watermarking a global default at launch.

This report was first published by TechCrunch. What you see here is a brief excerpt. The full text is theirs.

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