An open source framework and developer platform for building, testing, deploying, scaling, and observing agents in production.
OpenAI built ChatGPT’s Advanced Voice on LiveKit Cloud, used by millions of users around the world every day.
Run millions of concurrent calls
Automatic turn detection and interruption handling
Deploy and scale agents with LiveKit Cloud
Simple and Powerful APIs
Quickly build voice agents
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session = AgentSession(
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stt="deepgram/nova-3",
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llm="google/gemma-4-31b-it",
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tts="cartesia/sonic-3",
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turn_detection=MultilingualModel()
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)
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Developer platform
The complete stack for Voice AI
Open source framework to build and test agents
Inference gateway to access TTS, LLM, and STT models
Cloud platform for deploying and scaling agents
Phone numbers and SIP integrations for telephony
Full-stack observability for every agent session
Built for scale
Enterprise grade
infrastructure
Chosen by Innovators
From startups to industry giants
Ready to build?
Start building a voice AI agent with a free account. Reach out to us if you're interested in custom pricing.
No credit card required • 1,000 free agent session minutes monthly