Chrome Silently Put Gemini Nano on 500M Devices. Your Site Can Use It for Free.
Google Chrome has been silently downloading a 4 GB Gemini Nano model into a directory called OptGuideOnDeviceModel since 2024, affecting an estimated 500 million devices on Windows, macOS, and Linux. Privacy researcher Alexander Hanff filed the forensic report on May 4, 2026. The undocumented side effect: any website you build