Thrive Studios ID/Shutterstock Resourceful users have discovered a file approximately 4 GB in size that Google silently installed on all machines with Google Chrome. It's essentially part of a mass-distributed AI model available through the browser that no one had the opportunity to decline. As reported by privacy proponents like  ThatPrivacyGuy  – on any machine with Chrome installed, you'll find a weights.bin file tucked away. More specifically, in the user profile directory, and nested in a folder called OptGuideOnDeviceModel, is the weights file necessary for Gemini Nano – Google's on-device "efficient" AI model. It's part of Google's new push for AI support features in the browser, such as "Help me Write" or the scam detection functionality. Chrome's new AI layer is also one of the reasons to stop using Google Chrome  altogether on your devices. The download of this file occurs when AI features are active, but that's the interesting part.…