Google Chrome 4GB AI LLM file

 Many stories on the Internet concerning Google Chrome downloading a large file to support AI with a local LLM model. This can improve security and privacy.
If you are low on disk space and want to remove this file AND disable Google from reloading it:

✅ Step 1: Check if the AI file is even on your computer

First, don’t assume it’s there.

On Windows

Press Windows + R

Paste this and hit Enter: %LOCALAPPDATA%\Google\Chrome\User Data

Look for a folder named something like:

OptimizationGuideModelStore

OptGuideOnDeviceModel

Inside those folders, look for a large file:

Often named weights.bin

✅ If you see it and it’s several GB → that’s the AI model
❌ If you don’t see it → nothing to worry about


On Mac

Open Finder

Press Command + Shift + G

Paste: ~/Library/Application Support/Google/Chrome

Look for the same folders mentioned above


✅ Step 2: Turn OFF Chrome AI features (very important)

Do this FIRST—otherwise the file may come back.

In Chrome:

Go to: chrome://settings

Search for**“AI” or “Gemini”**

Turn OFF:

Gemini / AI assistant

Writing help (“Help me write”)

Page content sharing

👉 These features are what trigger the model download


Also remove the AI sidebar/button

If you see a Gemini icon:

Right‑click → Unpin

Or go to: chrome://settings/ai/gemini → turn everything OFF


✅ Step 3: Disable AI Mode (search/chat button)

In Chrome, open: chrome://flags

Search for: ai mode

Set these to Disabled:

AI Mode Omnibox entrypoint

Omnibox Allow AI Mode Matches

Restart Chrome

👉 This prevents Chrome pushing AI features again


✅ Step 4: Delete the AI file (if present)

Once AI features are OFF:

Go back to the folder from Step 1

Delete:

weights.bin

Or the entire AI model folder

👉 If AI is disabled, Chrome should not re-download it


✅ Step 5: (Optional) Verify it stays gone

Restart your computer

Reopen Chrome

Check if the folder/file is gone


⚠️ Important notes

Chrome may try to reinstall the file if:

AI features get re-enabled

Chrome updates reset settings

“chrome://flags” settings are temporary and may revert after updates [oilprice.com]


🧠 Simple summary

You’re doing 3 things:

Turn OFF AI features ✅

Disable hidden AI switches ✅

Delete the file ✅


✔ After this, Chrome should:

Stop using AI features

Stop downloading the large model

Free up that storage space