Dev.to
6/26/2026

Making of Aantraa
Short summary
Creator Shrey built Aantraa in a week—an AI-powered platform supporting 90+ language video translation, audio generation, and viral shorts creation. The architecture chains multiple AI API calls (OpenRouter, Anthropic, OpenAI) with FFmpeg video processing, deployed on Vercel/Fly.io with Firebase and UploadThing. Each feature requires sequential AI steps with prompt engineering and error tracking across the pipeline.
- •Video/audio translation supporting 90+ languages built in one week using orchestrated AI APIs
- •Tech stack: OpenRouter + Portkey for LLM routing, FFmpeg for video, Vercel/Fly.io for serverless + media workloads, Firebase + UploadThing for storage
- •Each feature (translation, dubbing, shorts) chains 4-5 AI steps with prompt engineering and token tracking for production debugging
Generated with AI, which can make mistakes.
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