Best AI Phone Receptionist

Retell AI: build your own voice receptionist

A developer platform rather than a receptionist service: transparent per-minute pricing for companies with the engineers to build on it.

Contents
  1. What Retell AI does
  2. Published evidence
  3. Strengths and limits
  4. Pricing
  5. Questions to ask Retell AI
  6. Sources
TypeDeveloper voice-agent platform
PricingPublished
Websiteretellai.com

Retell AI sells the building blocks of a voice agent: speech, voices, language models and telephony, priced per minute with no commitment⁠1.

Best for: Companies with developers who want to build their own voice receptionist and pay only for minutes used.

Not the right fit for: Companies without technical staff, or that want a finished receptionist service.

What Retell AI does

Developers build voice and chat agents on Retell's platform, choosing the voice engine, the voices and the language model, each priced separately per minute. Calls can transfer between AI and people. Pay-as-you-go accounts start with $10 in free credits and include 20 concurrent calls, with more available on demand; enterprise contracts have custom pricing and no concurrency cap⁠1.

For a receptionist, everything above that layer (the call flows, the calendar and CRM connections, testing and monitoring) is the buyer's work.

Published evidence

The pricing page we read does not include named customer results.

Strengths and limits

Strengths

  • Transparent per-minute pricing, broken down by component.
  • No annual contract to start.
  • Choice of voices and language models.

Limits

  • A toolkit, not a receptionist: integrations, call flows and testing are the buyer’s work.
  • Total cost depends on the components chosen.

Choose another option if: You want a receptionist configured and running without engineering work.

Pricing

Published: $0.07 to $0.31 a minute for voice agents, depending on the voice engine, voice and model; 20 concurrent calls included.

Questions to ask Retell AI

  • What will a typical minute cost with the voice and model we need?
  • Which templates exist for receptionist use, and how much do they cover?
  • How do transfers to people work on our phone system?
  • What support comes with pay-as-you-go accounts?

See how Retell AI compares with the other options in the main guide.

Sources

  1. Retell AI pricing. Retell AI. Accessed 8 Nov 2026.