
OpenAI textGrain: Invisible Text Watermarks Are Coming to EU ChatGPT and Codex
OpenAI will watermark eligible ChatGPT and Codex text in the EU and lets API users opt in worldwide. How textGrain works, what it detects, and what to do.

Expert profile
Founder & AI Product Leader
Yash Thakker is a Generative AI expert with over 12 years of experience in product leadership and technical strategy. As the founder of explainx.ai, he has taught over 300,000 learners and built AI platforms serving millions of users globally. He specializes in Agentic AI, Multimodal RAG, and the intersection of LLMs with consumer hardware.

OpenAI will watermark eligible ChatGPT and Codex text in the EU and lets API users opt in worldwide. How textGrain works, what it detects, and what to do.

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