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Gemma Translator: Offline AI Voice Translator on Raspberry Pi

Google Creative Lab published an open-source voice translator that runs Gemma 4 entirely on-device — no internet required, on a Raspberry Pi 5 with a small screen.

Google Creative Lab (the experimental arm of Google) built an open-source voice translator that runs Google's Gemma 4 model entirely locally using the LiteRT-LM runtime — no internet connection needed after setup. The device runs on a Raspberry Pi 5 with a small touchscreen: it captures speech, transcribes it, translates with Gemma 4, and speaks the result aloud in the other person's language. The full source code, deployment scripts, and even 3D-print files for the case are included.

Why a vibe-coder should care

For anyone who needs private offline translation — on trips, in areas with poor connectivity, or in sensitive conversations — this self-contained device never sends your voice to the cloud. The full build is open source, so you can follow along or ask an agent to guide you through the setup.

Open on GitHub