Gemma Translator is an open-source project for the Raspberry Pi 5 that acts as a multilingual interpreter running locally without access to the cloud using Google Gemma 4 and LiteRT runtime. It’s a project built by three Google engineers with the help of Google Antigravity. It includes code to run an on-device, fully offline voice translator/interpreter using Gemma 4 E2B (2.3B effective / ~5.1B total parameters with per-layer embeddings) and the LiteRT runtime. The hardware is comprised of a few components: A Raspberry Pi 5 with 8GB of RAM Display – HDMI monitor or touchscreen display such as a 480×320 kiosk display Audio Microphone or USB audio capture interface Speaker or headphone output device Keyboard  – The project demonstrated below appears to use a custom PCB (AX-4LABS-NEW) with a rotary encoder and four mechanical keys (of which only two are used) Optional 3D printed parts for the enclosure Software highlights: [...]

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