Is Google secretly installing Gemini Nano on Chrome? How to check and remove it.

Recently, many Chrome users have noticed a significant decrease in their computer's storage space, but without a clear explanation. According to some security and privacy experts, the culprit may be Gemini Nano – Google's local AI model that Chrome silently downloads to devices without clearly notifying users.

This model has a size of approximately 4GB and is used to support AI features that run directly on the computer instead of processing in the cloud. What has sparked debate is that the installation process is almost silent, requires no confirmation, and is not easily noticeable unless actively checked.

So what is Gemini Nano, why is it appearing on your computer, and how do you check for or remove it? Let's find out in detail.

What is Gemini Nano?

Gemini Nano is a version of AI designed by Google to run directly on the device instead of relying entirely on cloud servers.

Unlike online AI features that send data to Google's system for processing, Gemini Nano performs tasks directly on the user's computer or phone. This reduces latency, speeds up response times, and supports some features even with unstable network connections.

This model is currently used for many of Google's AI features, such as detecting scam calls, assisting with text editing, summarizing audio recordings, or analyzing screenshots on Pixel devices.

It's important to note that Gemini Nano is not the AI ​​Mode that appears in the Chrome address bar. When using AI Mode, your requests are still sent to Google's Gemini servers. Gemini Nano, on the other hand, operates entirely locally on the device.

According to Google, this model can only be installed on computers that meet the hardware requirements. However, the company has not yet announced exactly how many users have received this installation.

Why is Gemini Nano controversial?

The problem lies not in the AI ​​technology itself, but in how it is implemented.

Many experts believe that users are not clearly informed when Chrome downloads an additional AI model that is approximately 4GB in size. Besides taking up storage space, running AI locally can also impact system performance, battery consumption, and hardware resources.

Some argue that shifting some of the AI ​​processing workload from servers to user devices could significantly reduce Google's operating costs.

On Google's part, the company stated that the Gemini Nano will automatically uninstall if the device no longer has sufficient resources such as storage, RAM, processing power, or network bandwidth.

Google also confirmed that since the beginning of this year, Chrome has added an option allowing users to disable and remove AI models directly in the settings.

How to Check if Gemini Nano is Installed

If you suspect Chrome has downloaded Gemini Nano to your computer, you can check manually.

On macOS

On a Mac, open Finder and click the Go menu in the top toolbar.

Hold down the Option key to make the Library item appear in the list.

Next, navigate to the following path: Library > Application Support > Google > Chrome > Default

Here, find the folder: OptGuideOnDeviceModel

If this folder exists and contains the file: weights.bin , then Gemini Nano has been installed on your device.

On Windows

Windows users can access the Run dialog box by pressing: Windows + R

Then enter:

%LOCALAPPDATA%GoogleChromeUser DataOptGuideOnDeviceModel

If the opened folder contains the weights.bin file , that indicates Gemini Nano is present on the system.

Alternatively, you can also check manually using File Explorer at the following path:

C:Users[Username]AppDataLocalGoogleChromeUserDataOptGuideOnDeviceModel

How to disable and uninstall Gemini Nano on Chrome

If you don't want Chrome to continue using this local AI model, you can disable it from the browser settings.

On macOS

Open Chrome and tap the three-dot icon in the upper right corner.

Next, access: Settings > System

Find the option: On-device AI and switch it to the off state.

Once complete, Chrome will no longer download or update Gemini Nano.

On Windows

The process on Windows involves a few more steps.

First, open Settings > System and turn off the option: On-device AI

Next, enter the following address into the URL bar:

chrome://flags

Here, search for: Optimization Guide

Next, change the setting: Enables Optimization Guide on Device to: Disabled

Restart Chrome by completely exiting the browser instead of just closing the window.

Finally, access the folder: AppDataLocalGoogleChromeUserData and delete the folder: OptGuideOnDeviceModel to free up space that Gemini Nano has occupied.

What does Google say about this issue?

Google says the goal of Gemini Nano is to deliver a faster and more efficient AI experience for Chrome users.

According to the company, if users disable the On-device AI feature in Chrome settings, the model will no longer be downloaded or updated.

Google also emphasized that Gemini Nano is only deployed on devices that meet the hardware requirements and will automatically be removed if the system no longer has enough resources to operate.

However, the fact that many users are unaware that AI models have been downloaded to their computers remains a subject of debate within the tech community and among privacy advocates.

Should I remove the Gemini Nano?

The answer depends on each person's needs.

If you frequently use Chrome's new AI features and aren't too concerned about losing a few gigabytes of storage, you can keep the Gemini Nano on your device.

Conversely, if you want complete control over system resources or have no need for local AI, disabling and uninstalling Gemini Nano is a sensible option.

Most importantly, users should know exactly what is being installed on their devices and have the right to decide whether or not to use it.

Gemini Nano is part of Google's strategy to bring AI directly to devices. This model allows many AI features to run faster and reduces reliance on the cloud, but it also raises concerns about privacy, storage capacity, and potential system resource consumption.

If you're using Chrome, you should take a few minutes to check if Gemini Nano is listed on your computer. This will allow you to proactively decide whether to keep or remove it based on your actual needs.