LiveKit | Build voice, video, and physical AI

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LiveKit Cloud powers ChatGPT’s Advanced Voice Mode for millions of users around the world, every day.

Run millions of concurrent calls

Automatic turn detection and interruption handling

Self-host or deploy agents to LiveKit Cloud

Simple and Powerful APIs

Quickly build voice agents

1session = AgentSession(

2 stt="assemblyai/universal-streaming",

3 llm="openai/gpt-4.1-mini",

4 tts="cartesia/sonic-3",

5 turn_detection=MultilingualModel()

6)

Built for scale

Enterprise grade
infrastructure

Chosen by Innovators

From startups to industry giants

Ready to build?

Start building your realtime application 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