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OpenAI Watermarks ChatGPT and Codex: What Changes for EU Users

calendar_today October 7, 2026 person Liz Ticong domain dzone

ChatGPT responses in Europe may soon carry a signal users cannot see. OpenAI is rolling out invisible text watermarks for eligible ChatGPT and Codex output in the European Union across all plans. The provenance system is designed to help identify AI-generated text as transparency requirements under the EU AI Act take effect.

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