OpenAI to Add Invisible Watermarks to ChatGPT Text in European Union
OpenAI is introducing an invisible watermarking system called textGrain to identify AI-generated text from ChatGPT and Codex in the European Union, complying with the EU AI Act's transparency requirements effective August 2026. This watermark embeds a statistical pattern in word choices, detectable by specialized tools but invisible to readers. The feature will apply to all eligible EU users and be optional for developers worldwide via API. While detection is effective for longer texts, editing or translation can reduce reliability. Access to the detector is initially limited to approved researchers and organizations.
First-hand measurement across 11 sources
We measured how 11 outlets covered this story. No outlet gave this story a measurable political slant — there is no left–right reading to report. Overall sentiment is neutral (51/100). Lens Score 48/100.
Outlets measured: theprint, thehindu, timesnow, economictimes, indianexpress, economictimes, moneycontrol, news18, and 3 more. See how each one headlined and framed the same story in the source comparison below.
AI Analysis
Sentiment was consistent across outlets (50–52/100), indicating broadly factual reporting rather than editorialising.
Coverage timeline
firstpost broke this story on 5 Oct, 05:26 pm. Other outlets followed.