TL;DRGoogle and Antigravity built an offline AI translator prototype on a Raspberry Pi 5 running Gemma 4 E2B. No internet needed. Open source on GitHub. Not a product announcement.
Google and its Antigravity team have built a prototype AI translator that runs entirely offline on a Raspberry Pi 5. The Gemma Translator uses Gemma 4 E2B, the smallest model in Google’s open-weight family, to process speech locally without any cloud connection. The device includes a microphone and speaker inside a custom 3D-printed enclosure, creating a self-contained translation device that works anywhere regardless of connectivity. The project is open source on GitHub.
Google launched Gemma 4 in April with four model sizes, and the E2B edge variant was specifically designed to run on hardware as small as a Raspberry Pi or Jetson Nano. The Translator prototype is the most tangible demonstration of what that means in practice. Most AI translation tools, including Google Translate, require a cloud connection to process speech. Running everything on-device eliminates that dependency, which matters for travellers in areas with poor connectivity, organisations handling sensitive conversations, and emergency responders operating without infrastructure.
