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How I Built an Ultra-Low Latency, Local-First Interview Copilot with Electron, React 19, and Groq Whisper Turbo

This story is from 2026-09-05. It is preserved in the archive; the latest stories are on the live feed.

Most conversational AI speech assistants have a fatal flaw: crippling latency . You ask a question, an audio buffer accumulates, an upload takes 2 seconds, speech-to-text takes another 3 seconds, and the LLM takes 4 seconds to respond. By the time an answer arrives, 8–10 seconds of awkward silence…

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  1. 2026-09-05 20:56 · DEV Community — AI
    How I Built an Ultra-Low Latency, Local-First Interview Copilot with Electron, React 19, and Groq Whisper Turbo

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