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

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

Like other solutions, it is not especially reliable, and it's easy to circumvent.

arstechnica.com/ai/2026/10/openai-will-watermark-chatgpt-outputs-by-default-but-only-in-the-eu/