Security experts have recently brought to light a concerning issue: the Google Chrome browser is automatically downloading around 4GB of Gemini Nano AI model files (dubbed weight.bin) in the background, all without obtaining explicit user authorization. These files are then stored in a designated directory on the C drive, specifically at C:Users\AppDataLocalGoogleChromeUser DataOptGuideOnDeviceModel.
These downloaded files are intended to bolster the browser's built-in AI functionalities. However, they consume a substantial amount of disk space without the user's knowledge or consent, which could potentially hamper the performance of computers with lower specifications.
For users looking to address this issue, they have the option to disable two experimental features: 'Enables Optimization Guide On Device' and 'Prompt API'. This can be done by typing chrome://flags/ into the Chrome address bar. After disabling these options, users can manually delete the aforementioned file. Nevertheless, it's crucial to exercise caution, as improper handling could impact the browser's stability. Therefore, it's advisable to rename the file for testing purposes before proceeding with deletion.
As of now, Google has yet to issue a formal statement regarding this matter.
