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Dev.to
7/13/2026
Horizon: A serverless voice translator built with Gemini and ElevenLabs

Horizon: A serverless voice translator built with Gemini and ElevenLabs

Original: Horizon: A Shelved App Idea I Finally Built Before Breakfast

Short summary

A developer built Horizon, a live voice translator web app using Gemini for translation and ElevenLabs for speech synthesis, deployed entirely on Vercel with no backend server. The app uses client-side Silero VAD for automatic utterance detection and falls back to hold-to-talk if the model can't load. The post includes architecture details, a live demo link, and full GitHub source.

  • •Horizon: live voice translator using Gemini + ElevenLabs on Vercel serverless
  • •Client-side VAD with automatic fallback to hold-to-talk
  • •Full architecture, live demo, and open-source GitHub repo included

Generated with AI, which can make mistakes.

#ai-tools#open-source
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