Use Chrome built-in AI
Local AI checks Chrome's built-in AI Prompt API, detects whether Gemini Nano is ready, and starts an on-device prompt session in supported desktop Chrome browsers.
Check whether this browser exposes Chrome built-in AI APIs and whether the local model is ready.
Start with a check
Chrome may require a real button click before it can download the model or create a session. Detection and prompts run inside this browser.
Chat continuously with Chrome built-in AI. The session only lives on this page, and reset releases the browser AI session.
Press Command/Ctrl + Enter to send
Install Chrome
Use the latest desktop version of Google Chrome. Gemini Nano is not available on mobile Chrome.
Check requirements
Use macOS 13+, Windows 10/11, Linux, or Chromebook Plus, and keep enough free disk space for the model.
Trigger model download
On a supported page, click the run button. Chrome can download or prepare the local model after user interaction.
Check again
After the model download completes, run detection again. You can also inspect model state at chrome://on-device-internals.
About Chrome built-in AI
Chrome's official docs recommend checking state with LanguageModel.availability(). available means ready, downloadable means the model is needed, downloading means model preparation is in progress, and unavailable means this browser or device is not supported.
Read Chrome Built-in AI docs