LiveKit Realtime AI Platform

LiveKit is an open source realtime communication framework and cloud platform for building voice AI agents, video applications, and robotics teleoperation systems. Founded by Ds Russell and headquartered in San Francisco, the platform powers billions of calls annually in production for customers including Tesla, Oracle, Spotify, OpenAI, and Whatnot. Notably, OpenAI built ChatGPT Advanced Voice Mode on top of LiveKit Cloud, serving millions of daily users with sub 1000 millisecond global latency across 20 plus regions worldwide. The agent platform supports over 1 million concurrent calls with automatic turn detection and interruption handling, integrating speech to text through Deepgram Nova 3, large language models through OpenAI GPT-5.3 and others, and text to speech through Cartesia Sonic 3. The open source agents framework has accumulated over 11,100 GitHub stars and provides Python and Node.js SDKs for building voice agents in under 10 minutes. The platform includes telephony integration with SIP and phone number provisioning, full stack observability for every agent session, and an inference gateway for accessing various TTS, LLM, and STT model providers. Enterprise certifications include SOC 2 Type II, HIPAA compliance, and GDPR compliance with 100 percent uptime SLA. The WebRTC based media server supports VP8, VP9, H.264, and AV1 codecs with simulcast and SVC for adaptive quality.