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Voice Agent Platform
Retell AI
Voice AI platform for building low-latency phone agents across support, scheduling, and sales workflows.
Voice Agent Platform
Voiceflow
Collaborative agent-building platform for inbound and outbound phone calls, chat, workflows, tools, testing, and observability.
Highlighted rows differ between these picks
| Attribute | Retell AI | Voiceflow |
|---|---|---|
| Platform type | Voice Agent Platform | Voice Agent Platform |
| Pricing | $0.07-$0.31/min $0.07-$0.31/min; custom pricing available | Usage Based pricing Plan and usage-based pricing; phone, model, provider, and integration costs vary |
| Test it | Free trial | Free trial |
| Calls | Inbound, Outbound | Inbound, Outbound |
| Human handoff | Yes | Yes |
| Setup difficulty | Medium | Medium |
| Use cases | Customer Support Appointment Scheduling Lead Qualification AI Receptionists | Customer Support Lead Qualification Appointment Scheduling Outbound Follow Up |
| Useful for |
|
|
| Integrations | ||
| Twilio | ||
| Custom API | ||
| Zapier | — | |
| CRM | — | |
| Calendar | — | |
| Voiceflow Numbers | — | |
| Vonage | — | |
| Telnyx | — | |
| Salesforce | — | |
| Zendesk | — | |
| +1 more across these tools — see each profile for the full list. | ||
Platform type
- Retell AI
- Voice Agent Platform
- Voiceflow
- Voice Agent Platform
Pricing
- Retell AI
$0.07-$0.31/min
$0.07-$0.31/min; custom pricing available
- Voiceflow
Usage Based pricing
Plan and usage-based pricing; phone, model, provider, and integration costs vary
Test it
- Retell AI
- Free trial
- Voiceflow
- Free trial
Calls
- Retell AI
- Inbound, Outbound
- Voiceflow
- Inbound, Outbound
Human handoff
- Retell AI
- Yes
- Voiceflow
- Yes
Setup difficulty
- Retell AI
- Medium
- Voiceflow
- Medium
Use cases
- Retell AI
- Customer SupportAppointment SchedulingLead QualificationAI Receptionists
- Voiceflow
- Customer SupportLead QualificationAppointment SchedulingOutbound Follow Up
Useful for
- Retell AI
- • Fast voice prototypes
- • Support call automation
- • Scheduling workflows
- Voiceflow
- • Conversation design teams
- • Phone and chat agents
- • Low-code workflows
- • Collaborative enterprise development
Integrations
| Retell AI | Voiceflow | |
|---|---|---|
| Twilio | ||
| Custom API | ||
| Zapier | — | |
| CRM | — | |
| Calendar | — | |
| Voiceflow Numbers | — | |
| Vonage | — | |
| Telnyx | — | |
| Salesforce | — | |
| Zendesk | — |
+1 more across these tools — see each profile for the full list.
What would these cost to run?
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