Chrome’s AI May Be Taking up a Lot of Memory, but There Are Fixes.
Google Chrome is the most popular web browser in the world, but it’s not necessarily the most efficient. While Chrome offers users the greatest compatibility with Google products and services, not to mention a vast library of extensions, it tends to consume more system resources than other browsers, which can slow down weaker hardware or drain a laptop’s battery. Furthermore, the browser can also put additional strain on your hard drive.
As The Verge reports , Google Chrome may be taking up more space than necessary on your Mac, PC, or Chromebook—at least if you’re subscribed to one of Google’s AI-enabled plans. This is due to its AI features, specifically Gemini Nano, Google’s “lightweight” AI model used for fraud detection, autofill, text input tools, and predictions. Apparently, when a user has these AI features enabled, Chrome installs a 4GB file called “weights.bin” into the browser directory. This occurs because Gemini Nano runs on the device, not in the cloud. To do this, it requires resources on your computer to run its processes.
The exact reason for such a large file size is unclear, but it’s not necessarily surprising. AI processes can be resource-intensive, especially if the models are running on the device. Even though the Gemini Nano is a lightweight device, 4GB seems quite sufficient to me for the features listed here. On the plus side, on-device processes better protect user privacy, whereas cloud-based processes require your data to leave the device, potentially exposing your information. Google’s help center website mentions the features these models enable and states that Chrome downloads files to run these processes, but the exact file size is not specified.
If your computer is equipped with a large SSD or hard drive, the extra 4GB of storage might not be a big deal—especially if you enjoy Chrome’s Gemini features. However, many of us don’t have enough storage space, especially on computers with inherently small hard drives. For example, the base model MacBook Neo comes with 256GB of storage. Anyone who stores a local library of photos, videos, or other large files knows how difficult it is to manage an SSD of that size. Those 4GB of storage that Chrome takes up are truly valuable, especially for users who don’t rely on Google’s AI features.
How to free up unnecessary storage space in Chrome
As The Verge notes, you can delete the weights.bin file from the OptGuideOnDeviceModel directory on your computer. This will temporarily remove 4GB of data, but it’s not a permanent solution. If you leave these AI features enabled, Chrome will simply download the files again in the future, adding another 4GB to your hard drive.
So, the long-term solution is to disable these features. To do this, click the three dots in the upper-right corner of the Chrome window, then select “Settings.” Here, go to “System” and make sure “On-device AI” is unchecked. Note that this option may not be available if you’re not a Google AI subscriber or if your Chrome profile is managed by an organization, such as your school or company. In these cases, Chrome likely hasn’t installed the weights.bin file on your computer. For example, I don’t have this option in either my personal or work Chrome profiles on my Mac.