How to turn off Gemini Nano on Chrome is becoming a topic of interest to many users as Google continuously integrates AI features running in the background. For devices with limited memory, removing the “weights.bin” file is highly recommended to optimize device performance. Join AnonyViet to learn the detailed process below.
📢 Join the channel Telegram belong to AnonyViet
Update new articles, cool tools and IT tips fastest
Why should you consider turning off AI features on Chrome?
Google Chrome has long been more than just a pure web browser but is gradually integrating many powerful artificial intelligence (AI) features. One of them is the appearance of the Gemini Nano model through the file weights.bin. Although it brings convenience to some users, for those who own a limited hard drive, the fact that this file “consumes” hundreds of MB to GB of space is a big minus.
Using on-device AI features provides high privacy because all data processed stays on the personal computer. However, if you don’t use tools like “Help me write” or tab organizer, storing this model is a waste of memory.

Instructions on how to turn off Gemini Nano on Chrome
If you have decided to free up storage space, follow the steps below. Note that turning off Gemini Nano on Chrome can be done through system settings or customizing browser flags.
Method 1: Disable in system settings
- First, check if your browser has a direct on/off option.
- Open Chrome on your computer. Visit Settings. Select item System.
- Find and flip the switch On-device AI to status Off.

Method 2: Customize through Chrome Flags
Step 1: If your browser does not have the above option, we will need to intervene further.
- Enter chrome://flags go to the address bar and press Enter.
- In the search bar, type keywords optimization-guide. Find the flag #optimization-guide-on-device-model and switch Disabled.

- Keep looking #prompt-api-for-gemini-nano and choose Disabled.

- Press the button Relaunch in the bottom corner of the screen to apply the changes.
Step 2: Manually delete the folder containing the files
Once you’ve stopped Chrome from automatically loading the model, you’ll need to delete the existing file to reclaim hard drive space. Make sure you have completely turned off your browser before doing so.
For Windows:
- Press the key combination Win + Renter %LOCALAPPDATA%\Google\Chrome\User Data\ then press Enter.

- Access the folder Default (or the profile you are using).
- Find folder OptGuideOnDeviceModel and delete it.

For macOS:
- Press Cmd + Shift + G.
- Access the link ~/Library/Application Support/Google/Chrome/

- Find and put folder OptGuideOnDeviceModel into the trash.

Important notes after implementation
After applying the above method to turn off Gemini Nano Chromeyour browsing will become smoother. However, remember that every time Google updates Chrome, the settings in chrome://flags may be reset to their original state. You should check periodically if you see that your hard drive space is suddenly used up again. In addition, deleting this file does not affect the ability to browse the web normally or use Google online services.
Conclusion
How to turn off Gemini Nano on Chrome is a smart choice for those who prioritize system performance over today’s built-in AI features. With just a few minutes of setup following the instructions, you can clean up your browser and make it much cleaner and smoother.
Frequently Asked Questions (Q&A)
1. Does deleting the weights.bin file damage the browser?
No, this is completely safe. It only removes the local AI model, Chrome still works normally for web browsing needs.
2. Why don’t I see the “On-device AI” option in settings?
This is because Google updates each region or version of Chrome gradually. If you don’t see it, use the “Flags” method as instructed above.
3. Will Chrome automatically redownload this file in the future?
Capable. If Chrome updates to a new version, the flags may be reset, you just need to repeat the steps to disable them.








