SybianWife
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do you understand what just happened to your computer..
Google Chrome secretly downloaded a 4GB AI model onto your device. Without asking.. Without telling you..
It's called weights.bin. It lives deep in your system folders. It powers Gemini Nano - Google's on-device AI.
And if you delete it? Chrome re-downloads it automatically. Like nothing happened.
Just Google deciding your hard drive is their storage unit.
At 1 billion Chrome users - that's 4 BILLION gigabytes of data pushed silently across the internet.
The carbon footprint alone equals tens of thousands of cars running for a year.
Check your disk right now:
📁 %LOCALAPPDATA%\Google\Chrome\User Data\OptGuideOnDeviceModel
To stop it: chrome://flags → disable Optimization Guide On Device Model → restart Chrome → delete the folder.
Reshare so people know what's sitting on their computers.
Pirat_Nation 🔴@Pirat_Nation
Google Chrome is quietly downloading a roughly 4 GB AI model to many users’ computers without clear upfront consent. The file, called weights.bin, is part of Google’s Gemini Nano on-device language model and lands in the browser’s user data folder under OptGuideOnDeviceModel. It powers built-in AI tools such as “Help me write,” smarter tab suggestions, on-device scam detection, and page summarization. The download triggers automatically for devices meeting minimum hardware requirements, and Chrome often replaces the files if deleted. While the model processes data locally, installation happens in the background with minimal notification. The scale is noteworthy. Hundreds of millions or billions of installations add up to thousands of tonnes of carbon emissions globally from data transfer, even though each is a one-time event. To prevent or remove it, go to chrome://flags, disable the entries for the optimization guide on-device model and Prompt API, restart the browser, and manually delete the folder.
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