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Chrome built-in AI (Gemini Nano)

On-device AI APIs in Chrome (Prompt API etc.) running Gemini Nano locally.

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What Chrome built-in AI (Gemini Nano) does

On-device AI APIs in Chrome (Prompt API etc.) running Gemini Nano locally. Web developers can call built-in AI APIs (Prompt, summarise, translate, etc.) that run Gemini Nano on the user's device, with no server cost and better privacy. Prompt API available in Chrome 148 on supported desktops and extensions.

Good for

  • Private on-device summarisation in a web app
  • AI features in a Chrome extension with no API bill
  • Offline-capable AI helpers

Try this in 10 minutes

  1. Private on-device summarisation in a web app. Pick one real example from your own business and try just that.
  2. AI features in a Chrome extension with no API bill. Put the result next to how you do it today. Is it faster, cheaper or better?
  3. Offline-capable AI helpers. Note what you had to fix by hand before you'd show it to a customer.

Mini-tasks based on common small-business uses for this tool.

Honest take

No red flags in our notes so far

  • Sarah Drasner: Area Tech Lead, AI & Web Ecosystem at Chrome.
  • Olivier Lacombe: Google DeepMind Product Director (Gemma, Gemini Nano).

Pricing

Free (built into Chrome).

Prices as listed by the maker when we last checked (2026-10-18); usually in US dollars. Check the website for current prices.

Latest update

No major updates recorded since we added it.

Is Chrome built-in AI (Gemini Nano) worth it? Quick answers

Is Chrome built-in AI (Gemini Nano) worth it?

Chrome built-in AI (Gemini Nano) is worth a look if it matches a job you already do (Dev infrastructure / APIs). It is free to use, so the main cost is your time.

How much does Chrome built-in AI (Gemini Nano) cost?

Free (built into Chrome).

What is Chrome built-in AI (Gemini Nano) used for?

On-device AI APIs in Chrome (Prompt API etc.) running Gemini Nano locally. Typical uses: private on-device summarisation in a web app; AI features in a Chrome extension with no API bill; offline-capable AI helpers.