OpenAI begins text watermarking in line with EU AI Act requirements
OpenAI is initiating a phased rollout of text watermarking to comply with the requirements of the EU AI Act. The initiative is intended to make it easier to identify AI-generated content.

What happened?
OpenAI has begun a phased rollout of text watermarking for its generated content. The measure is being implemented to meet the requirements of the EU AI Act concerning the labelling and identification of AI-generated material.
Key facts
| Aktör | OpenAI |
|---|---|
| Regelverk | EU AI Act |
| Åtgärd | Fasindelad textvattenmärkning |
Why it matters
The introduction of traceability and labelling aims to increase transparency regarding AI-created content and combat disinformation. It marks a significant step in how major AI companies are adapting their technology to new European regulations.
Who is affected?
The change affects developers using OpenAI's APIs, companies integrating the models into their products, and end-users within the EU who interact with AI-generated text.
Impact on the EU
The EU AI Act sets requirements for transparency and traceability regarding AI-generated content. OpenAI's implementation of phased text watermarking aligns the company's services with upcoming requirements for the European market.
What else you should know
Text watermarking involves embedding invisible patterns into the statistical structure and word choices of generated text, allowing detectors to identify AI-created content without impacting readability for human readers.
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