Home SEO OpenAI To Watermark ChatGPT Text In The EU, Opens API Opt-In via @sejournal, @MattGSouthern OpenAI To Watermark ChatGPT Text In The EU, Opens API Opt-In via @sejournal, @MattGSouthern Andrew M Oct 06, 2026 comments off Tweet on Twitter Share on Facebook Google+ Pinterest OpenAI will add an invisible watermark to ChatGPT and Codex text in the EU. Its tests show editing can weaken it. The post OpenAI To Watermark ChatGPT Text In The EU, Opens API Opt-In appeared first on Search Engine Journal. API European Union Machine Learning & Artificial Intelligence (AI) Services openai Search Engine