Chrome Built-in-AI version control.

[Jeremy Ellis]

One of the reasons I really like Javascript is that I can define the version of scripts I use. My main teaching TensorflowJS site at https://rocksetta.com/tensorflowjs/  

which for some pages uses the ~5 years old  <script src="https://cdn.jsdelivr.net/npm/@tensorflow/tf...@1.0.0"> </script> and still works even though TFJS is now running V4.22.0.   I know chrome does not like people using old versions, so is that basically the concept with Chrome Built-in-AI, the most up-to-date version is the one everyone uses? 

Is there a way to tell which version has been downloaded? Does the session script always check if you are online and a newer version should be downloaded? Can a new or older version be manually installed?

Just curious.

Jer

[Thomas Steiner]

Hi Jeremy,

The question is two-fold:

• The Gemini Nano model: the browser handles the updates transparently. As a user, you won't know when an update has happened and the model version is on purpose not exposed to script. As a developer, you can check out the special page chrome://on-device-internals (paste this in the URL bar, you need to activate internals pages when you do).
• The JavaScript APIs: those change with Chrome version changes. For example, before the current API shape (like window.LanguageModel), we had a different shape (window.ai.languageModel). When you switched Chrome version from n to n+1, these new APIs were exposed and the old ones no longer exist.

In all cases there's no way to continue using an older model version or an older version of the API shape. Hope this makes sense.

Cheers,

Tom

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[Jeremy Ellis]

Thanks Thomas. chrome://on-device-internals/ is super useful and interesting (The model is fairly similar to tensorflowJS). I am a bit scared to touch anything but great to see the versions etc.