Overview
Retell AI is an LLM-based conversational platform for building, deploying, and managing AI voice agents that handle phone calls at scale. It uses proprietary voice orchestration for natural, low-latency conversations and can autonomously handle lead qualification, support, and appointment booking.
✨ Features
Low-Latency Voice
Proprietary turn-taking and realistic voices deliver natural conversations at ~600ms latency.
Agentic Builder
A drag-and-drop framework with real-time function calling and streaming RAG.
Flexible Deployment
Supports batch calling, branded caller ID, verified numbers, and SIP trunking.
Quality Monitoring
Post-call analysis, AI quality assurance, simulation testing, and analytics dashboards.
⚖️ Pros & Cons
Pros
Cons
💰 Pricing
Pay as you go
$0.07 /min
- Voice agents $0.07-$0.31/min
- Chat agents from $0.002/message
- $10 free credits to start
- 20 free concurrent calls
- Call analytics and transcripts
Enterprise
Custom
- Contact sales for a quote
- Dedicated stable server
- Unlimited concurrent calls
- SSO and custom MSA/DPA
- 24/7 omnichannel support
Categories
❓ Frequently Asked Questions
What is Retell?
Retell AI is an LLM-based conversational platform for building, deploying, and managing AI voice agents that handle phone calls at scale. It uses proprietary voice orchestration for natural, low-latency conversations and can autonomously handle lead qualification, support, and appointment booking.
What are the key features of Retell?
Retell offers 4 main features. Low-Latency Voice: Proprietary turn-taking and realistic voices deliver natural conversations at ~600ms latency. Agentic Builder: A drag-and-drop framework with real-time function calling and streaming RAG. Flexible Deployment: Supports batch calling, branded caller ID, verified numbers, and SIP trunking. Quality Monitoring: Post-call analysis, AI quality assurance, simulation testing, and analytics dashboards.
How much does Retell cost?
Retell uses a Freemium — $10 in free credits, then pay-as-you-go voice from $0.07-$0.31/min and chat from $0.002/message; Enterprise custom pricing model. Available plans include Pay as you go at $0.07/min, Enterprise at Custom.
What are the pros and cons of Retell?
Key advantages include: Very low latency with realistic voices; Generous pay-as-you-go with free credits; Strong enterprise compliance (HIPAA, SOC2, GDPR). Potential drawbacks: Per-minute costs add up at high call volumes; Enterprise pricing requires contacting sales.
What type of tool is Retell?
Retell is categorized under Agents, Voice Generator on AI Product List. It is designed for professionals and teams looking for agents solutions.
Where can I try Retell?
You can visit the official Retell website at retellai.com to sign up, explore features, or start a free trial.