Corroborated event · 5 outlets
OpenAI is adding an invisible, machine-readable watermark to text and code generated in the EU to comply with the AI Act, while making it optional for API users worldwide.
AI brief
OpenAI explained how it is approaching text watermarking under EU rules, covering where watermarks apply, how detection works, and why access begins with researchers.
Why it matters: It outlines how OpenAI plans to meet EU text provenance requirements and who can access the detection tools.
Written by AI from OpenAI News's published text. Read the original for full details.
More coverage of this story (4)
OpenAI outlines EU text watermarking approach for ChatGPT
OpenAI will start watermarking ChatGPT’s text in the EU
TechCrunch AI · 05 Oct 2026, 20:36
OpenAI will add a digital watermark to text and code generated in the EU
Engadget AI · 05 Oct 2026, 18:30
OpenAI is adding text watermarking in ChatGPT and Codex
The Verge AI · 05 Oct 2026, 18:08
OpenAI will watermark ChatGPT text in the EU but makes it optional for API users worldwide
The Decoder · 05 Oct 2026, 17:32
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