Chrome’s Silent AI Installation
Google Chrome has been found to download a 4GB AI model to users’ PCs without their explicit consent or knowledge.
Technical Details
The file, named “weights.bin” and located in the “OptGuideOnDeviceModel” directory, contains weights for Google’s Gemini Nano AI model. This model is designed to function on users’ devices rather than in the cloud.
bash File: weights.bin Size: 4GB Location: OptGuideOnDeviceModel Model: Gemini Nano “n
Installation Behavior
The download occurs automatically when Chrome’s default AI features are active on compatible hardware. Notably:
- Chrome does not request user permission
- The file remains hidden from users
- If deleted, Chrome automatically re-downloads the model
Privacy Concerns
This behavior raises significant privacy questions:
- Lack of transparency in the installation process
- Unauthorized use of user hardware resources
- Potential performance impact on user devices
- Violation of user autonomy over their own systems
User Backlash
The discovery has triggered widespread criticism:
- “Chrome did not ask, Chrome does not surface it” – security researcher Hanff
- “All of this only so they can show the market that people really are ‘using’ their AI crap” – user comment
- “There were few things Google could do to force users off of Chrome faster than this” – user reaction
Mitigation
To prevent the automatic re-installation:
- Navigate to Chrome settings
- Manually disable AI features
- Delete the weights.bin file
Alternative Approach
Competing browser Vivaldi has taken a different stance, emphasizing user autonomy:
“We will continue building a browser for curious minds, power users, researchers, and anyone who values autonomy. If AI contributes to that goal without stealing intellectual property, compromising privacy or the open web, we will use it. If it turns people into passive consumers, we will not.”
– Jon von Tetzchner, Vivaldi CEO
