Checking storage use

[Raymond Camden]

Pardon me if this has already been asked. I see some questions about size in general, but I was wondering when we would be able to check, ourselves, how much space is being taken up by various bits (models, language packs, etc). I opened up devtools in Canary, and I see it's more verbose then it has been in the past, but I don't believe I see anything related to the AI stuff. Is it there and I just don't see it yet?

Outside of devtools, it also feels like pages like chrome://on-device-translation-internals should possibly show this info as well, right?

[Thomas Steiner]

Hi Ray,

You can localize the files on your hard drive:

For the translation models:

~/Library/Application Support/Google/Chrome Canary/TranslateKit/models

For Gemini Nano:

~/Library/Application\ Support/Google/Chrome\ Canary/OptGuideOnDeviceModel/2024.9.25.2033/weights.bin

The bold part in the path may vary over time. I'm lazy and just search my Chrome Canary profile for files >1GB. 

This is for macOS, but it's similar for other platforms like Linux or Windows.

Cheers,

Tom

On Tue, Feb 18, 2025 at 9:01 PM Raymond Camden <raymon...@gmail.com> wrote:

Pardon me if this has already been asked. I see some questions about size in general, but I was wondering when we would be able to check, ourselves, how much space is being taken up by various bits (models, language packs, etc). I opened up devtools in Canary, and I see it's more verbose then it has been in the past, but I don't believe I see anything related to the AI stuff. Is it there and I just don't see it yet?

Outside of devtools, it also feels like pages like chrome://on-device-translation-internals should possibly show this info as well, right?

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[Raymond Camden]

Cool, thank you. On Windows, it was 

C:\Users\ray\AppData\Local\Google\Chrome SxS\User Data\OptGuideOnDeviceModel\2024.9.25.2033

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Raymond Camden

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Twitter: raymondcamden

[Thomas Vanier]

Hi,

I was testing my download progress UI, got the model installed, then removed my ~/Library/Application Support/Google/Chrome Canary/OptGuideOnDeviceModel folder, restarted the browser (v140.0.7298.0), the availability is now "downloadable", but Summarizer.create does not seem to return (only downloadprogress events 0 and 1 - not always). It looks like the model will eventually be available after a while, so I guess the download is actually started. I also tried to delete and re-create my Chrome profile. There is maybe something else to clear under ~/Library/Application Support/Google/Chrome Canary to reset to a proper downloadable state?

As a side question, I was wondering if an "uninstall API" was discussed?

Thanks

[Thomas Steiner]

Hi Thomas,

The officially recommended way to simulate a not downloaded model is to start Chrome with a fresh temporary profile with the command line flag --user-data-dir=/tmp/foo. 

Hope this works for you!

Cheers,

Tom

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[Raymond Camden]

I'm going through this now, and it works perfectly fine, but it takes a good few minutes to make the new profile, enable, test, repeat, etc. Has there been any changes to improve this process? Like Thomas V mentioned above, if you just delete the folder it seems to mess things up, I'm seeing that too, and the new profile is 100% workable, it's just a bit of a slog. (To be fair, last time I deleted the folder, I didn't completely shut down Canary, only the window with my profile.)

[Thomas Steiner]

We unfortunately still don't have actual DevTools support, so working with a blank new user profile via the command line flag is still the recommendation.