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There's a free plan; paid tiers are quoted.
Retell AI has no fixed monthly starting plan: its Pay as you go option bills by usage, with voice listed at $0.07–$0.31 per minute and chat from $0.002 per AI message. The pricing page includes $10 in free credits, 20 concurrent calls and full platform access, with no minimums or contracts. Those headline rates are not your whole bill: voice components, telephony, add-ons and concurrency above 20 can add charges. Enterprise pricing is custom.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Pay as you go | — | Quote | Teams building and scaling voice or chat agents |
| Enterprise | — | Quote | Organizations needing compliance and dedicated support |
Add-ons and overages
- Knowledge Base: $0.005/min; monthly listing also shows $8 per knowledge base/month, with the first 10 free.
- Batch Call: $0.005 per dial.
- Branded Call: $0.10 per outbound call.
- Advanced Denoising and Safety Guardrails: $0.005/min each; PII Removal: $0.01/min.
- AI Quality Assurance: first 100 minutes free, then $0.10/min.
- SMS: $0.01 per message.
- Telephony call rates: $0.015/min for listed country/carrier options; custom telephony/SIP trunking has no charge listed.
- Retell phone numbers: $2/month; Retell SMS: $20/month.
- Concurrency beyond the first 20 active calls: $8 per concurrency/month.
- Verified phone numbers: pricing lists both $10/number/month and a one-time $10 fee.
- Enterprise add-ons: Dedicated Implementation Support and Dedicated Stable Server; prices not published.
- Voice prices vary by selected components: Retell Voice Infra $0.055/min; TTS voices range from $0.015 to $0.10/min; speech-to-speech LLMs range from $0.07 to $0.38/min.
- Chat model prices vary; the listed range is $0.0005–$0.10 per AI message.
02What the plan grid doesn't tell you
Voice components vary
Voice rates depend on selected components: infrastructure is $0.055/min, TTS $0.015–$0.10/min, and speech-to-speech LLMs $0.07–$0.38/min, per the pricing page.
Telephony and messaging
Listed telephony options add $0.015/min. Retell phone numbers cost $2/month; SMS is $0.01/message, and Retell SMS is $20/month.
More concurrent calls
The first 20 active calls are included. Each additional concurrency costs $8/month; branded calls are $0.10 each and batch calls $0.005 per dial.
Knowledge base, number fees
Knowledge Base pricing lists $0.005/min and $8 per base/month, with the first 10 free. Verified numbers show both $10/month and a one-time $10 fee.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Teams testing voice agents | Pay as you go | No minimums or contracts; includes $10 in credits, 20 concurrent calls and full platform access. |
| Teams with variable call volume | Pay as you go | Usage billing suits changing workloads, but estimate component, telephony and concurrency charges before forecasting spend. |
| Organizations needing compliance | Enterprise | Includes role-based access, custom SSO, uncapped concurrency and 24/7 dedicated support; pricing is custom. |
04Is Retell AI worth the money?
Retell looks worth pricing out if you need voice-agent workflows, testing, handoffs and call analytics rather than a simple answering bot. The included 20 concurrent calls and pay-as-you-go billing lower the commitment barrier, but the advertised per-minute band is only a starting point: voice components, telephony and optional tools can stack, and concurrency beyond the included amount has a separate fee. We would model calls by component and destination before committing. Enterprise buyers must request a quote.
Retell AI pricing FAQ
What is the average cost of an AI?
There is no single average AI cost in the published pricing information: it depends on the product and usage. For Retell, the pricing page lists voice at $0.07–$0.31/min and chat from $0.002 per AI message, before applicable components and add-ons. Treat those as usage rates, not a monthly budget.
Does Retell AI work?
Retell is designed to build, deploy and manage AI voice agents for phone calls. The platform also supports chat, SMS and API-based communication, with call workflows, human handoffs and post-call analysis. Those capabilities describe the product; they do not guarantee results for a particular business or call flow.
How much do AI voice agents cost?
Retell lists voice usage at $0.07–$0.31 per minute on Pay as you go, plus applicable components and charges. Telephony, add-ons and concurrency above 20 active calls can increase the bill. Enterprise pricing is custom, so the total depends on call volume and configuration.
How much does Google Agent Assist cost?
We don't have a sourced Google Agent Assist price in this pricing brief, so we can't give a reliable dollar comparison. Check Google's current pricing page for its billing unit, included usage and any contact-sales tier before comparing it with Retell's per-minute rates.