Component 'Optimization Guide On Device Model ' doesn't show up

[BrunoFelipeAlbuquerque]

Windows 11 Pro 22631.3880 - Windows Feature Experience Pack 1000.22700.1020.0 Chrome Canary v128.0.6589.0

Enabled WebGPU, prompt-api-for-gemini-nano and optimization-guide-on-device-model in all possible combinations and the Optimization Guide On Device Model isn't showing up even after restarting the browser or the PC.

[young-yang03]

@lightning-joyce @BrunoFelipeAlbuquerque

Optimization Guide On Device Model is missing for me too. But I solve it.

Try to change chrome language to "English", and refresh the "chrome://components/" or relaunch the browser, the Optimization Guide On Device Model will show

[vbilici]

I changed the language to English but It didn't help. I am using Mac Os Sonoma 14.5 and Chrome dev Version 128.0.6585.0 (Official Build) dev (arm64)

[ankurparihar]

It's just not working for some reasons, and nobody on twitter or anywhere is helpful either

[channu28011995]

1 Open DevTools and send await window.ai.canCreateTextSession(); in the console. If this returns “readily”, then you are all set.

2 force Chrome to recognize that you want to use this API. To do so, open DevTools and send await window.ai.createTextSession(); in the console. This will likely fail but it’s intended.

Then, relaunch Chrome and continue with the steps below.

3 Open a new tab in Chrome, go to chrome://components 4 Confirm that Gemini Nano is either available or-is being downloaded You'll want to see the Optimization Guide On Device Model present with a version greater or equal to 2024.5.21.1031. If there is no version listed, click on Check for update to force the download.

4. Once the model has downloaded and has reached a version greaterthan shown above, open DevTools and send await window.ai.canCreateTextSession(); in the console. If this returns “readily”, then you are all set.

[vbilici]

weird but it worked 👍 thanks!

[ankurparihar]

This is one golden buzzer answer @channu28011995.

Thank you so much for this!!!

[heinrich-ulbricht]

Not appearing here, but I'm on Debian. Not sure if there are hardware/driver requirements that are not met :-/ One blog post suggested to wait up to two days, so I'm going to do that.

[chenxing3]

Not appearing here, but I'm on Debian. Not sure if there are hardware/driver requirements that are not met :-/ One blog post suggested to wait up to two days, so I'm going to do that.

Is the label “Optimization Guide” appearing after 1-2 days?

[clover2016]

send await window.ai.canCreateTextSession();

[djs959]

"Optimization Guide" is not appearing for me either since I updated to Canary 128.0.6613.0, in the previous version it was there and worked. I've tried the tricks above and also deleted the application directory, clearing and reseting the two flags, etc. I have >100Gb of free disk space. Running 15.0 Beta (24A5289h).

[M42ku5]

It finally worked for me today in the chrome beta version 128.0.6613.7 (using win 10):

[clover2016]

I finally solve this

the key point is step3

1. enable flags
2. Relaunch
3. Open console and send: await window.ai.createTextSession()
4. Ignore errors , goto chrome://components

[liudonghua123]

I use the latest chrome stable v127.0.6533.73 on windows, and enabled the two flags (Enabled chrome://flags/#prompt-api-for-gemini-nano and Enabled BypassPerfRequirement chrome://flags/#optimization-guide-on-device-model), changed language to English or English (United States), but the Optimization Guide On Device Model still not shown on chrome://components/.

Is chrome v128 a mandatory requirement?

[m0o0scar]

1 Open DevTools and send await window.ai.canCreateTextSession(); in the console. If this returns “readily”, then you are all set.

2 force Chrome to recognize that you want to use this API. To do so, open DevTools and send await window.ai.createTextSession(); in the console. This will likely fail but it’s intended.

Then, relaunch Chrome and continue with the steps below.

3 Open a new tab in Chrome, go to chrome://components 4 Confirm that Gemini Nano is either available or-is being downloaded You'll want to see the Optimization Guide On Device Model present with a version greater or equal to 2024.5.21.1031. If there is no version listed, click on Check for update to force the download. 4. Once the model has downloaded and has reached a version greaterthan shown above, open DevTools and send await window.ai.canCreateTextSession(); in the console. If this returns “readily”, then you are all set.

Confirm this works for me (MacBook Pro with Apple Silicon, Sonoma 14.5), thanks 👍

[Alan-Zhi]

1 打开DevTools并在控制台中发送await window.ai.canCreateTextSession();。如果 返回“readily”，则一切就绪。

2 强制Chrome识别您想要使用此API。为此， 请打开DevTools并在控制台中发送await window.ai.createTextSession();。 这可能会失败，但这是意识为之。

然后，重新启动 Chrome 并继续以下步骤。

3 在 Chrome 中打开新标签页，转到 chrome://components 4 确认 Gemini Nano 可用或正在下载 您希望看到设备模型上的优化指南存在，其 版本大于或等于 2024.5.21.1031。 如果没有上市版本，请单击检查更新以强制下载。 4.一旦模型下载并达到上述显示的版本，请打开 DevTools并在控制台中发送await window.ai.canCreateTextSession();。如果 “readily”，则一切都已经返回。

nice ! Component downloading

[codezjx]

If you still can't see this option, confirm storage space, make sure that you have at least 22 GB of free storage space. I tried all the above methods but none of them worked. Finally I deleted a lot of files and managed to get the space at least 22G, and the option is showing.

After the model file is downloaded, it will be placed in this directory on MacOS: ~/Library/Application Support/Google/Chrome/OptGuideOnDeviceModel/2024.7.24.2218

[ZebarFish]

I use the latest chrome stable v127.0.6533.73 on windows, and enabled the two flags (Enabled chrome://flags/#prompt-api-for-gemini-nano and Enabled BypassPerfRequirement chrome://flags/#optimization-guide-on-device-model), changed language to English or English (United States), but the Optimization Guide On Device Model still not shown on chrome://components/.

Is chrome v128 a mandatory requirement?

I encountered the same problem as you and I updated to v128 and It's ok

[aiakubovich]

still does not work for me...

[jhaemin]

It seems it doesn't work on Chrome v127. It works on Chrome beta (which is v128).

[imaiya]

I finally solve this

the key point is step3

1. enable flags
2. Relaunch
3. Open console and send: await window.ai.createTextSession()
4. Ignore errors , goto chrome://components

I love you

[vinooganesh]

For folks that find this later, the button on the components page can take some time to appear, it took about 30 minutes for it to appear for me. Also, I had to make sure that my chrome was in "English" not "English (United States)"

[liudonghua123]

Change Language to "English" not "English (United States)", and execute await window.ai.createTextSession() in console of devtools works for me.

[liudonghua123]

I also find the downloaded Gemini Nano files are located in %LOCALAPPDATA%\Google\Chrome\User Data\OptGuideOnDeviceModel\2024.7.24.2218.

[volthier]

I have try all steps above and none have worked on version 130.0.6675.0 any suggestion or idea to solve this?

[salmin89]

I had this issue at first and then I tried changing the browser language to English (not US) and nothing. I tried pasting: await window.ai.createTextSession() but no result.

Then I just randomly tried await window.ai.summarizer.create() and this made Optimization Guide On Device Model show up. Not sure if it was random or it just finished downloading in the background.

[volthier]

I had this issue at first and then I tried changing the browser language to English (not US) and nothing. I tried pasting: await window.ai.createTextSession() but no result.

Then I just randomly tried await window.ai.summarizer.create() and this made Optimization Guide On Device Model show up. Not sure if it was random or it just finished downloading in the background.

That works like a charm thank you :)

[volthier]

Now i have the Optimization Guide On Device Model but still not working the await window.ai.createTextSession()

[dark-faze]

Any idea when these apis will be made available for normal chrome ?

[BenMQ]

Note that API has changed. If you are on 129.0.6667.0+ the following API might work better

• await ai.assistant.create() and restart chrome.
• or, await window.ai.summarizer.create() as salmin89 pointed out seem to work great as well.

ai.createTextSession no longer exists. see https://docs.google.com/document/d/1VG8HIyz361zGduWgNG7R_R8Xkv0OOJ8b5C9QKeCjU0c/edit#heading=h.witohboigk0o