Retell AI
Retell AI provides a platform for building inbound and outbound phone agents, with voice, model, telephony, testing, and call-management components. It is usage-based: the selected voice and model, call duration, concurrency, and add-ons affect cost. A headline per-minute range is only a starting point for a real call budget.
Pay-as-you-go voice is advertised at $0.07–$0.31/minute; chat from $0.002/message. Signup includes $10 credit.Is Retell AI right for you?
Good for
- Teams developing phone agents for routine inbound enquiries, routing, or other defined call workflows.
- Supports building and operating inbound and outbound voice agents.
- Offers choices of speech, model, and telephony components.
Keep in mind
- Silence and hold time count toward call duration for billing.
- Telephony fees can continue after a call transfers even when AI charges stop.
- Voice/model selection, destination rates, concurrency, and add-ons can increase costs beyond a headline estimate.
Pricing and plan limits
The headline voice range is not a universal cap: models, voices, telephony, and add-ons have separate rates. Call duration includes silence and hold time. After transfer, AI fees stop but telephony fees may continue. Confirm destination rates and currency for the planned calls.
| Plan | Price and billing | What to know |
|---|---|---|
| Evaluation credit | $10 credit includedIntroductory credit; not unlimited free calling | Test calls consume credit according to the selected components.Retell AI: pricing and plan limits |
| Pay-as-you-go voice | $0.07–$0.31/minute advertised rangePer-minute usage; selected components can change the total | 20 concurrent calls included. Model, voice, telephony, and add-on choices affect the final bill.Retell AI: pricing and plan limits |
| Chat agents | From $0.002/AI messagePer-message usage | Model choice changes the message rate; SMS delivery is a separate cost.Retell AI: pricing and plan limits |
| Enterprise | CustomVolume agreement; contact sales | Custom concurrency, support, implementation, and contract options.Retell AI: pricing and plan limits |
More about capabilities and limits
Documented strengths
Supports building and operating inbound and outbound voice agents.Retell AI: official product information
Offers choices of speech, model, and telephony components.Retell AI: pricing and plan limits
Pay-as-you-go access includes 20 concurrent calls without an enterprise contract.Retell AI: pricing and plan limits
Limitations to consider
Silence and hold time count toward call duration for billing.Retell AI: pricing and plan limits
Telephony fees can continue after a call transfers even when AI charges stop.Retell AI: pricing and plan limits
Voice/model selection, destination rates, concurrency, and add-ons can increase costs beyond a headline estimate.Retell AI: pricing and plan limits
Choosing a plan
Test a realistic call, including pauses and a transfer, then inspect the component bill. Choose the model and voice for the actual task, check telephony rates, and add concurrency only when simultaneous call demand requires it.
Based on the linked product documentation.
Available on
Web.
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