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Voice agent platform

Retell AI

Pay-as-you-go voice agent platform for developers; component pricing for infra, voices, LLM and telephony.

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Key facts

Starts at: Free · $0.07–$0.31/min depending on voice, LLM and telephony.
Billing model: Pay as you go
Per-minute rate (or overage): $0.07
Price per call: Not published
Included on entry plan: Not published
Overage: Not published
Free plan / trial: $10 free credits
HIPAA: BAA available · HIPAA/BAA on Enterprise.
Languages: Not published
Human backup: Transfers to your team
Integrations: API, Call transfer, Appointment booking
Contract: Not published
Industries: General small business

Platform facts

Build style: No-code and API · AI-powered no code studio ... drag-and-drop canvas / flexible API (source)
Telephony included: Yes · Retell Phone Numbers (source)
Bring your own carrier / SIP: Yes · Retell supports integration with any telephony system through SIP trunking (source)
Choice of LLM: Yes · GPT 5.5 || GPT 5.4 ... (multiple LLMs priced) (source)
Choice of voice provider: Yes · Elevenlabs Voices || Cartesia Voices (source)
Latency (vendor claim): ~600ms · With ~600ms latency, conversations stay smooth and fluent. (source)
Concurrency: 20 free concurrent calls; no cap on Enterprise · Free for first 20 concurrency (active calls) (source)
Outbound calling: Yes · Outbound Campaigns at Scale (source)

Sections: Voice AI platforms. Latency and concurrency are the vendor's claims; we have not measured them.

Stated features

HIPAA: HIPAA/BAA on Enterprise.
Appointment booking: Calendar integrations: Appointment booking

Retell AI alternatives

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Retell AI compared

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Lists that include Retell AI

Best AI voice agent platforms Best no-code AI voice agent builders Best voice AI APIs for developers Best AI outbound calling software Best HIPAA-compliant AI voice agent platforms

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Badges for Retell AI

Free for Retell AI to embed. Each badge links back to this profile and is served from aireceptionistsranked.com. Rank badges state a position in our published-data order (price published first, then how complete the public facts are), not a score or a test result. If the position changes, the old badge URL redirects to the current one, or to the Listed-on badge if Retell AI leaves that list. Dark versions: replace _light_ with _dark_.

Listed on

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#2 in Voice AI platforms · ranked by public data (position in our published-data order on /voice-agents/, not a quality rating)

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Listed on · Voice AI platforms

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Sources

https://www.retellai.com/pricing

Checked Oct 26, 2026 on the vendor's own site. Prices change; confirm with Retell AI before you buy. Spotted an error? Send a correction.