OpenAI Adds Invisible Watermarks to ChatGPT Text in EU to Comply with AI Act
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. The watermark embeds a hidden statistical pattern detectable by specialized tools but invisible to readers. Initially limited to EU users, API customers worldwide can opt in. While the watermark aids detection, OpenAI acknowledges limitations, including reduced reliability with short or edited texts. Access to the detector is restricted to approved researchers and organizations.
First-hand measurement across 7 sources
We measured how 7 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: indianexpress, economictimes, moneycontrol, news18, indiatoday, firstpost, firstpost. 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.