Unable to download Chrome's local Gemini Nano model

[Sharat Gajulapalli]

Hi, 

I need to be able to use window.ai for my Chrome extension and I followed all the steps as listed in the documentation below but it's still not enabled. I do meet the hardware requirements as well. 

1. Enable Required Flags

Go to chrome://flags and enable:
• #optimization-guide-on-device-model
  (Set to Enabled BypassPrefRequirement)
• #prompt-api-for-gemini-nano
  (Set to Enabled)

2. Force Model Download

Go to chrome://components.
Find Optimization Guide On Device Model.
Click "Check for update".
Note: If missing, restart Chrome after enabling flags.

3. Hardware Requirements

• Chrome 127+
• Minimum 4GB RAM (8GB recommended)
• Integrated/Dedicated GPU

When I go to Chrome Components and look for Optimization Guide on Device Model, I don't see it. 

Any help would be appreciated. 

Thanks,

Sharat 

[Kenji Baheux]

Hi Sharat,

The API is no longer under window.ai I'm guessing that you (or your AI agent) are using obsolete documentation.

Please check this article and others, for the latest.

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Kenji BAHEUX (my how-to)

Product Manager - Chrome

Google Japan

[Sharat Gajulapalli]

Thank you!