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AI · June 26, 2024

Voice bots with 500ms response times

Last year when GPT-4 was released I started making lots of little voice + LLM experiments. Voice interfaces are fun; there are several interesting new problem spaces to explore. I'm convinced that voice is going to be a bigger and bigger part of how we all interact with generative AI. But one thing that's hard, today, is building voice bots that respond as quickly as humans do in conversation. A 500ms voice-to-voice response time is just barely possible with today's AI models. You can get down to 500ms if you: host transcription, LLM inference, and voice generation all together in one place;…

Voice bots with 500ms response times launched on June 26, 2024 with 315 votes, #127 of 4,672 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 2 years on.

In plain words

Voice bots with 500ms response times is a system for building conversational voice AI agents that respond nearly as quickly as humans. It combines speech transcription, language model inference, and voice generation on a single server to minimize latency. The creator provides a demo and deployable container for running the system on high-end GPUs, addressing the technical challenge of achieving fast, natural-sounding voice interactions with generative AI models.

written from the facts on this page · September 2026

From the sources

A demo showcasing the potential capabilities of voice-driven AI chatbots when optimized and deployed to minimize network and model latency.

In the maker’s words, at launch

Last year when GPT-4 was released I started making lots of little voice + LLM experiments. Voice interfaces are fun; there are several interesting new problem spaces to explore. I'm convinced that voice is going to be a bigger and bigger part of how we all interact with generative AI. But one thing that's hard…

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