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Google Chrome is the most popular web browser in the world, but it’s not necessarily the most efficient. While Chrome offers users the most compatibility with Google’s products and services – not to mention its vast library of extensions – it has a habit of hogging more system resources than other browsers, which can slow down weaker hardware, or drain your laptop’s battery. As it happens, the browser can also be responsible for putting pressure on your hard drive.
As reported by The VergeGoogle Chrome may be taking up more storage than necessary on your Mac, PC, or Chromebook—at least if you subscribe to one of Google’s AI plans. This is due to its AI features, specifically Gemini Nano, Google’s “lightweight” AI model that is used for scam detection, autofill, writing tools, and suggestions. It seems that when a user has these AI features turned on, Chrome installs a 4GB “wet.bin” file in the browser directory. This is because Gemini Nano runs on the device rather than in the cloud. To accomplish this, it requires resources on your computer to run its processes.
It’s not clear exactly what causes this file to be so large, but it’s not necessarily surprising. AI processes can be intense, especially if models are running on devices. Even though the Gemini Nano is “lightweight”, 4GB sounds about right to me for the features highlighted here. There’s actually an advantage, as on-device processes are better for user privacy: for cloud-based processes, your data would have to leave your device, which could potentially expose your information. Google’s Help Center site Mentions the features of these models, and reveals that Chrome will download files to run those processes, but does not specify the exact file size.
If your computer has a large SSD or hard drive, you won’t mind adding 4GB of storage – especially if you like Gemini’s features in Chrome. However, many of us don’t have extra storage space, especially on machines with small hard drives. For example, the entry-level MacBook Neo comes with 256GB of storage. Anyone who stores a local library of photos, videos, or other large files knows the challenge of managing an SSD of this size. The 4GB of storage that Chrome is taking up really makes sense, especially for users who don’t trust Google’s AI features.
What do you think so far?
How to free up unnecessary storage space in Chrome
As The Verge notes, you can delete the weight.bin file from the OptGuideOnDeviceModel directory on your computer. This will delete 4GB of data temporarily, but it is not a permanent solution. If you keep these AI features turned on, Chrome will re-download files in the future, and your hard drive will become 4GB heavier.
In such a situation, your long-term solution is to disable these features instead. To do this, click the three dots in the upper right corner of the Chrome window, then click “Settings.” Here, go to “System”, then make sure “On-device AI” is checked off. Note that if you’re not a Google AI customer, or if an organization like your school or company manages your Chrome profile, this option may not be available. In these cases, Chrome probably hasn’t installed the weight.bin file on your machine. For example, I don’t have the option on my personal Chrome profile or my work Chrome profile on my Mac.
