OpenAI will watermark ChatGPT outputs by default—but only in the EU

Like other solutions, it is not especially reliable, and it’s easy to circumvent.

OpenAI will watermark ChatGPT outputs by default—but only in the EU

TL;DR

  • OpenAI will start automatically watermarking text generated by ChatGPT in the European Union.
  • This move is to comply with the EU AI Act, which requires AI-produced content to be marked for detection.
  • The watermarking method, called textGrain, is proprietary but works by embedding undetectable patterns in word choices.
  • OpenAI acknowledges that the watermarking is not completely effective, with detection rates dropping significantly if the generated text is modified.
  • The feature will be a default in the EU but optional in other regions and available in the API.
  • Competitor Anthropic also introduced watermarking globally for its models' outputs.