• Brijesh Desai
• News
• October 8, 2026

OpenAI to Watermark ChatGPT Text in the EU and Opens API Opt‑In Worldwide

OpenAI to Watermark ChatGPT Text in the EU. On Oct 5, OpenAI said it will watermark eligible ChatGPT text in the EU over the coming weeks, and API customers can opt in from now using