AI Voice Agent Platform 
Retell AI
Developer-to-enterprise voice agent platform with $40M+ ARR, multichannel expansion, and sub-700ms latency.
Pricing
$0.07 /min
$0.07/min base platform fee. Real all-in cost $0.13–$0.31/min depending on LLM + TTS stack. $10 free credits on signup.
Free tier
Per minute Usage-based
View pricing page →
Verified April 2026
Capabilities
| Capability | Retell AI |
|---|---|
| Transcription | ✓ |
| Summarization | ✓ |
| Sentiment Analysis | ✓ |
| Real-Time Agent Assist | ✗ |
| Autonomous Voice Agent | ✓ |
| Virtual Agent (Chat) | ✓ |
| Conversation Intelligence | ✓ |
| Automated QA | ✓ |
| Intelligent Routing | ✓ |
| Predictive Dialer | ✗ |
| Voice Cloning | ✗ |
| Multilingual | ✓ |
| Coaching Workflows | ✗ |
| Workforce Management | ✗ |
Median voice latency: 620ms source
Compliance & Security
Integrations
CRM
salesforcehubspot
Helpdesk
zendesk
Telephony
twiliotelnyxvonage
AI Models
openaianthropicgoogle vertex
Other
zapiermaken8n
API documented