LiveKit Agents vs Ultravox

LiveKit Agents is free, with no paid plan attached. Ultravox is freemium — a usable free tier with paid plans above it. Both are listed under Real-Time Voice Agents, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.

LiveKit Agents vs Ultravox — straight answers

LiveKit Agents vs Ultravox: what is the difference?

LiveKit Agents is free, with no paid plan attached and is listed for apache-2.0 open-source framework, fully self-hostable on your own servers. Ultravox is freemium — a usable free tier with paid plans above it and is listed for speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch. Both sit in Real-Time Voice Agents.

Is LiveKit Agents or Ultravox cheaper to start with?

LiveKit Agents is the cheaper starting point: it is free, with no paid plan attached, while Ultravox is freemium — a usable free tier with paid plans above it. Pricing tiers here come from the catalog, not from a promotional page.

Which should I choose, LiveKit Agents or Ultravox?

Choose LiveKit Agents if you need apache-2.0 open-source framework, fully self-hostable on your own servers; choose Ultravox if you need speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

LiveKit Agents compared with Ultravox: pricing tier, category, listed capabilities and links.
 LiveKit AgentsUltravox
Pricing tierFreeFree tier + paid plans
Free to startYesYes
CategoryAI Agents & AutomationAI Agents & Automation
TypeReal-Time Voice AgentsReal-Time Voice Agents
Listed capabilities
  • Apache-2.0 open-source framework, fully self-hostable on your own servers
  • Native WebRTC client support across web/mobile/telephony out of the box
  • Native Model Context Protocol (MCP) support for tool-using voice agents
  • Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch
  • Free tier: 5¢/min including TTS for up to 5 concurrent calls
  • Open-weight models (fixie-ai) published on Hugging Face for research use
Tagslivekit agents, open source voice agent framework, realtime webrtc agents, voice ai sdk, self hosted voice agent, freeultravox, speech native voice ai, real time voice model, low latency voice agent, open weight voice model, free
Websitegithub.comultravox.ai
Full pageLiveKit Agents details →Ultravox details →
AlternativesLiveKit Agents alternatives →Ultravox alternatives →

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