# Chrome 的 AI 功能可能会占用你电脑中 4GB 的存储空间

- 来源：Hacker News 热门（buzzing.cc 中文翻译）
- 作者：birdculture
- 发布时间：2026-05-11 11:37
- AIHOT 分数：60
- AIHOT 链接：https://aihot.virxact.com/items/cmp0o29ts0rejsllhyie4nh4p
- 原文链接：https://www.theverge.com/tech/924933/google-chrome-4gb-gemini-nano-ai-features

## AI 摘要

Google Chrome 浏览器集成的 Gemini Nano 等最新 AI 功能，可能会在用户本地设备上占用高达 4GB 的存储空间。这些功能通过部署本地 AI 模型来提升浏览体验，但其模型文件是导致大量存储消耗的主要原因，可能影响存储空间有限设备的性能。此情况已引发科技社区的关注，在 Hacker News 等平台引发了广泛讨论。建议用户留意存储使用情况，并根据自身设备条件和需求，谨慎权衡是否启用这些 AI 特性。

## 正文

Tech

AI

News

Chrome’s AI features may be hogging 4GB of your computer storage

Here’s how you can find out, and get that storage back if you need it.

Here’s how you can find out, and get that storage back if you need it.

Google Chrome may be taking up more of your storage than expected thanks to a large on-device AI model file that, in some cases, is being automatically downloaded to the browser’s system folders. Users who have noticed unexplained drops in their available desktop device storage are now discovering that Chrome is installing a 4GB weights.bin file inside their browser directory when certain AI features are enabled.

The weights.bin file in question is connected to Google’s Gemini Nano AI model, which powers Chrome AI tools like scam detection, writing assistance, autofill, and suggestion features. As the Gemini Nano model is designed to run locally, it needs to use training parameters stored on your device rather than pulling information from cloud-based models. That provides some privacy benefits, but isn’t ideal if you’re low on storage — especially as users aren’t being clearly notified about the file size requirements.

If you have certain Gemini AI features enabled on Chrome, it’s likely that the 4GB file has already been downloaded to your system. You can check by opening your Chrome data folders and inspecting the OptGuideOnDeviceModel directory for the weights.bin file.

You can’t simply delete this to free up space, however — if you still have AI features enabled, Chrome may re-download it again in the future. That means you’ll need to head to Settings>System and toggle off the On-Device AI option to remove those features and prevent the file from coming back.

Google does specify that “Gemini Nano’s exact size may vary as the browser updates the model,” but this information is presented in a lengthy guide for built-in AI features rather than at the point of enabling them in Chrome. If Google had made the storage requirements clearer to users — or provided an option to power Chrome AI features with cloud-based models — this confusion could have been avoided.

”We’ve offered Gemini Nano for Chrome since 2024 as a lightweight, on-device model,” Google spokesperson Scott Westover tells The Verge. “It powers important security capabilities like scam detection and developer APIs without sending your data to the cloud. While this requires some local space on the desktop to run, the model will automatically uninstall if the device is low on resources. In February, we began rolling out the ability for users to easily turn off and remove the model directly in Chrome settings. Once disabled the model will no longer download or update. More details in our help center article.”

Update, May 6th: Added statement from Google.

Jess Weatherbed

AI

Chrome

Google

News

Tech