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Open-source real-time communication platform
LiveKit is an open-source platform for building real-time audio, video, and data communication into applications.15 Founded in 2021 by Russ d'Sa and David Zhao, the company reached a $1 billion valuation after raising a $100 million Series C round led by Index Ventures in 2025.4 LiveKit is a portfolio company of Founders, Inc. (f.inc).3
LiveKit provides a WebRTC-based infrastructure layer that handles media routing, encoding, and network optimization for real-time communication.5 The core server is open source and written in Go, with client SDKs available for major platforms including iOS, Android, web, Flutter, Unity, and React Native.5 The platform supports both peer-to-peer and server-routed architectures, handling video, audio, screen sharing, and arbitrary data channels.1
LiveKit's infrastructure powers the voice mode in OpenAI's ChatGPT, which launched in September 2023 and allows users to have spoken conversations with the AI assistant.6 The integration handles real-time audio streaming between users and OpenAI's models.2
LiveKit raised a $5.5 million seed round in 2021, followed by a $10 million Series A led by Redpoint Ventures in 2022.3 In 2024, the company raised a $22 million Series B led by Altimeter Capital.2 In 2025, LiveKit closed a $100 million Series C led by Index Ventures at a $1 billion valuation, making it a unicorn.4 Total funding stands at approximately $137.5 million.3
LiveKit's infrastructure processes billions of minutes of real-time communication annually, used by companies building video conferencing, live streaming, telehealth, AI voice agents, and multiplayer gaming applications.14
LiveKit is an open-source platform for building real-time audio, video, and data communication into applications.15 Founded in 2021 by Russ d'Sa and David Zhao, the company reached a $1 billion valuation after raising a $100 million Series C round led by Index Ventures in 2025.4 LiveKit is a portfolio company of Founders, Inc. (f.inc).3
LiveKit provides a WebRTC-based infrastructure layer that handles media routing, encoding, and network optimization for real-time communication.5 The core server is open source and written in Go, with client SDKs available for major platforms including iOS, Android, web, Flutter, Unity, and React Native.5 The platform supports both peer-to-peer and server-routed architectures, handling video, audio, screen sharing, and arbitrary data channels.1
LiveKit's infrastructure powers the voice mode in OpenAI's ChatGPT, which launched in September 2023 and allows users to have spoken conversations with the AI assistant.6 The integration handles real-time audio streaming between users and OpenAI's models.2
LiveKit raised a $5.5 million seed round in 2021, followed by a $10 million Series A led by Redpoint Ventures in 2022.3 In 2024, the company raised a $22 million Series B led by Altimeter Capital.2 In 2025, LiveKit closed a $100 million Series C led by Index Ventures at a $1 billion valuation, making it a unicorn.4 Total funding stands at approximately $137.5 million.3
LiveKit's infrastructure processes billions of minutes of real-time communication annually, used by companies building video conferencing, live streaming, telehealth, AI voice agents, and multiplayer gaming applications.14
