Retell AI vs LiveKit Agents
Detailed side-by-side comparison to help you choose the right tool
Retell AI
🔴DeveloperVoice AI Tools
Voice AI platform for building conversational phone agents with human-like speech, ultra-low latency, and natural turn-taking for call center automation.
Was this helpful?
Starting Price
$0.07/minLiveKit Agents
🔴DeveloperVoice AI Tools
LiveKit Agents: Real-time media infrastructure platform with an integrated agent framework for building voice and video AI assistants that can participate in live conversations. Enables developers to create AI agents that can see, hear, and speak in real-time video calls, with support for spatial audio, screen sharing, and multi-participant interactions.
Was this helpful?
Starting Price
FreeFeature Comparison
Scroll horizontally to compare details.
Retell AI - Pros & Cons
Pros
- ✓Ultra-low latency voice responses (sub-800ms) create natural-feeling conversations that don't frustrate callers with awkward pauses
- ✓Modular pricing with 15+ LLM options and 6 TTS providers lets you precisely optimize cost-quality tradeoffs per agent
- ✓Free SIP trunking eliminates per-minute telephony charges — significant cost savings for high-volume deployments
- ✓Built-in production features like batch calling, branded caller ID, PII removal, and AI quality assurance cover real telephony needs
- ✓Webhook-based function calling enables real-time CRM updates, appointment booking, and database queries during live calls
- ✓Chat agent support with SMS adds multi-channel capability without needing a separate platform
Cons
- ✗No self-hosting option — all voice data flows through Retell's cloud infrastructure, which may not meet strict data sovereignty requirements
- ✗Advertised $0.07/min minimum is misleading — realistic production costs with a capable LLM run $0.13-$0.25/min after all components
- ✗Enterprise features (HIPAA, SSO, RBAC) require custom pricing with no published rates, making budget planning difficult
- ✗Younger platform with fewer production case studies and community resources compared to Twilio or Genesys ecosystems
LiveKit Agents - Pros & Cons
Pros
- ✓Fully open source under Apache 2.0 license with active community
- ✓Production-ready infrastructure with built-in load balancing
- ✓Multimodal capabilities supporting voice, video, and text simultaneously
- ✓WebRTC technology ensures reliable connectivity across network conditions
- ✓Extensive AI provider ecosystem with regular updates
- ✓No-code Agent Builder for rapid prototyping
Cons
- ✗Primarily focused on real-time applications (not suitable for batch processing)
- ✗Usage-based pricing can become expensive for high-volume applications
- ✗Requires understanding of WebRTC and real-time systems for advanced use cases
- ✗Limited documentation for complex enterprise deployment scenarios
- ✗Dependency on LiveKit Cloud for managed deployment and inference
Not sure which to pick?
🎯 Take our quiz →🔒 Security & Compliance Comparison
Scroll horizontally to compare details.
Price Drop Alerts
Get notified when AI tools lower their prices
Get weekly AI agent tool insights
Comparisons, new tool launches, and expert recommendations delivered to your inbox.
Ready to Choose?
Read the full reviews to make an informed decision