Google has installed a 4GB AI model called Gemini Nano on users' computers without their explicit consent. This model enhances user experience with features like "Help me write," AI-assisted browsing, and scam detection, but was integrated without prior notification to users. The AI scam detection features have been available on Android and desktop platforms for some time. The deployment of the Nano model has raised concerns about user autonomy and trust, as it was done without user consultation or approval.