Nabu
The private voice assistant for your Home Assistant smart home.
Nabu is the voice of Home Assistant — the wake word you already know (“Okay Nabu”) brought together with the speech processing, hardware, and cloud services that make it work. Built by the Home Assistant team, designed for privacy, and proudly local-first.
What makes Nabu different
- Local-first — Nabu runs on your Home Assistant system, in your home. Your voice never has to leave your network.
- Private by design — When you use Home Assistant Link to accelerate speech processing, audio is immediately deleted after being transcribed. We never train on your voice.
- Open — Nabu is built on open protocols and open source software. No walled garden, no lock-in.
- Made for Home Assistant — Seamless integration with every device, automation, and script already in your smart home.
The pieces of Nabu
“Okay Nabu” — the wake word
A custom wake word trained by the Home Assistant team, running entirely on-device. No always-listening cloud microphone.
Home Assistant Voice Preview Edition
The first voice assistant hardware built to work with Nabu out of the box. Premium audio processing in a design that blends into your home.
Learn more about Voice Preview Edition
Speech processing via Home Assistant Link
Optional cloud-accelerated speech-to-text and text-to-speech for the fastest, most accurate experience — with more supported languages than any local model can match.
Privacy you can verify
- Audio is deleted the moment it’s transcribed
- Voice data is never used to train models
- All processing is encrypted end-to-end
- The entire pipeline — wake word, intents, automations — can run fully local if you choose
Start talking to your home
Nabu works with any Home Assistant system and is supercharged by a Home Assistant Link subscription.