# OpenAI will watermark ChatGPT outputs by default—but only in the EU

https://mins.news/en/item/88763

- Ars Technica, 2026-10-06 20:50 UTC
- Tech
- Original: https://arstechnica.com/ai/2026/10/openai-will-watermark-chatgpt-outputs-by-default-but-only-in-the-eu/

> OpenAI says it will automatically watermark ChatGPT-generated text in the European Union to comply with the EU AI Act. The feature will be available elsewhere but disabled by default. Its proprietary textGrain system embeds detectable word-choice patterns without significantly changing output quality, though people with basic technical knowledge may be able to circumvent it.

## Related coverage

- [OpenAI will start watermarking ChatGPT text in the EU](https://mins.news/en/item/87004) — TechCrunch, 2026-10-05
- [OpenAI is adding text watermarking to ChatGPT and Codex](https://mins.news/en/item/86860) — The Verge, 2026-10-05