OpenAI adds invisible text watermarks to ChatGPT and Codex, starting with the EU
ns123abc · x · 2026-10-06
- OpenAI announced invisible text watermarks hidden in ChatGPT and Codex outputs, with a phased rollout strategy.
- Text watermarking will not be a global default at launch; the company is starting with the EU, saying the regional approach "gives us room to learn."
- API customers worldwide can opt in starting today, and OpenAI says it expects to revisit each part of the approach as technology, standards, and evidence evolve.
Related event: OpenAI Rolls Out textGrain Text Watermarking, Starting in the EU(15 posts)→
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