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LiveKit

Category: AI Infrastructure

An open-source infrastructure platform providing the real-time 'nervous system' for developers to build low-latency audio, video, and multimodal AI applications. LiveKit was founded in 2021. The company is led by Russ D'Sa. Based in Palo Alto, USA. Team size: 51-200. Total funding raised: ~$183M. Latest round: Series C ($100M, Jan 2026). Key investors include ["Index Ventures","Altimeter Capital","Redpoint Ventures","Salesforce Ventures","Y Combinator"].

Founded
2021
Headquarters
Palo Alto, USA
Team size
51-200
Total funding
~$183M

Value proposition

Eliminates the complexity of building real-time media pipelines by providing sub-100ms latency transport and an orchestration layer specifically optimized for Generative AI agents.

Products and solutions

["LiveKit Stack (Open-source WebRTC server and SDKs)","LiveKit Cloud (Global, managed edge network for scaling)","LiveKit Agents (Framework for building real-time AI voice and video agents)","LiveKit Inference (AI model routing and hosting across data centers)","Agent Builder (No-code/browser-based voice agent creation tool)","Agent Observability (Monitoring and tracing for voice agents)","Serverless Agents (Turnkey agent deployment)","Egress & Ingress (Media processing, recording, and RTMP streaming tools)","Components (Pre-built UI kits for React, Swift, and Kotlin)"]

Unique value

Unlike traditional WebRTC solutions designed for human-to-human calls, LiveKit is architected to treat AI models as first-class participants, enabling seamless, low-latency multimodal interaction between humans and LLMs.

Target customer

AI labs, enterprise software developers, robotics companies, and platforms requiring real-time human-to-AI or human-to-human communication.

Industries served

["Artificial Intelligence","Telehealth","Education & EdTech","Gaming & Social Media","Robotics & IoT","Enterprise Collaboration"]

Technology advantage

Proprietary orchestration logic that minimizes 'time-to-first-byte' for AI responses; combined with an open-source distribution model that has established it as the industry standard for AI voice infrastructure.

How they differentiate

LiveKit differentiates through an open-source core and an 'AI-first' architecture. Unlike legacy RTC providers built for human-to-human calls, LiveKit is optimized for AI agents, offering sub-100ms latency and a specialized orchestration layer that treats LLMs as first-class participants in real-time sessions.

Main competitors

["Agora","Daily.co","Twilio (Programmable Video/Voice)","Mux"]

Key partnerships

["OpenAI (Core infrastructure provider for ChatGPT Advanced Voice Mode)","Index Ventures, Salesforce Ventures, Hanabi Capital, Altimeter Capital, Redpoint Ventures (Series C Investors)","Deepgram, ElevenLabs, AssemblyAI, Inworld AI (Integration partners for STT/TTS)","Bluejay, Hamming, Roark (Simulation/testing partners)","Telephony carriers worldwide (PSTN integration partners)"]

Notable customers

["OpenAI (ChatGPT Advanced Voice Mode)","xAI","Meta Platforms","Salesforce","Tesla","Spotify","Character.ai"]

Major milestones

["Open-sourced the LiveKit RTC stack in 2021","Selected as the core infrastructure for OpenAI's ChatGPT Advanced Voice Mode in 2024","Reached $1B valuation following a $100M Series C round in January 2026"]

Growth metrics

Achieved Unicorn status with a $1B valuation in January 2026; powers real-time audio for major AI platforms including OpenAI.

Market positioning

The 'Nervous System for AI'—providing the critical infrastructure layer for real-time multimodal AI and high-performance communication.

Geographic focus

Global (via a distributed edge network), with primary corporate focus in North America.

Patents and IP

No specific public utility patents disclosed; relies on proprietary cloud orchestration IP and open-source brand dominance.

About Russ D'Sa

Russ D'Sa is a seasoned serial entrepreneur and product leader. He was the co-founder and CEO of Screenhero (a collaborative screen-sharing platform acquired by Slack in 2015) and the founder of Evie Labs (a machine learning startup acquired by Medium in 2019). Following these acquisitions, he held senior product leadership roles at Slack and Medium. His earlier career includes pivotal product management positions at Twitter and 23andMe.

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