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Retell AI
A pay-as-you-go voice agent platform with a drag-and-drop builder and testing tools.
AI Voice Agents · third-party tool · Setup: Moderate (our estimate) · Last verified 2026-10-14
Our take
Retell offers a visual canvas for call flows, scenario simulation, and deployment to inbound, outbound, web, or SMS. It starts at $0 with free credits and per-minute pricing, which in our view lowers the barrier to a pilot compared with annual contracts.
Opinion based on the vendor's published documentation. We have not tested this product hands-on. How we review.
Key features
- Drag-and-drop conversation canvas with functions and transfers
- Simulated scenarios and regression tests from real calls
- Inbound, outbound dialer, web widget, and SMS deployment
- QA across AI calls
From the vendor's page: www.retellai.com
Pros (our view)
- No commitment to start
- Testing tools included
Cons (our view)
- Per-minute range is wide depending on configuration
- Requires flow design work
Comparisons
Alternatives to Retell AI
- Vapi
A developer-first voice agent platform with usage pricing and paid support tiers.
- Synthflow
An enterprise voice AI platform with its own telephony and a testing framework.
- Aircall
A cloud phone system with AI assistants and AI voice agents that syncs calls to your CRM.
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