AI Voice Agent Platform 
Retell AI
Developer-to-enterprise voice agent platform with $40M+ ARR, multichannel expansion, and sub-700ms latency.
Best latency and voice quality for inbound at production scale. Expanded to chat, SMS, and email in January 2026. Still seed-funded at $40M+ ARR, which is unusual—and signals strong unit economics.
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
Reviews & Recognition
Alternatives to Retell AI
Frequently asked questions about Retell AI
- What is Retell AI?
- Best latency and voice quality for inbound at production scale. Expanded to chat, SMS, and email in January 2026. Still seed-funded at $40M+ ARR, which is unusual—and signals strong unit economics.
- How much does Retell AI cost?
- Retell AI starts at $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. (pricing verified April 2026).
- What security and compliance certifications does Retell AI have?
- Retell AI is compliant with SOC 2 Type II, HIPAA, and GDPR. A Business Associate Agreement (BAA) is available for healthcare deployments.
- What channels does Retell AI support?
- Retell AI supports voice, web chat, SMS, and email.
- What are the top alternatives to Retell AI?
- Alternatives to Retell AI include Vapi, Bland, Synthflow, and Elevenlabs. See the alternatives section above for full profiles of each.