Retell AI
AI voice agents that answer, qualify and book on real business phone calls
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Pricing
Free trial
Free trial
Yes
API
Yes
Company
Retell AI
Platforms
What is Retell AI?
Retell AI is a platform for building, testing and deploying AI voice agents that handle inbound and outbound phone calls. Agents can answer calls, qualify leads, book appointments, navigate IVR menus and transfer to a human with a briefing when needed.
Teams design call flows on a drag-and-drop canvas with functions, integrations, DTMF, SMS and custom logic, then run simulations and turn real calls into regression tests before going live. Agents deploy to phone numbers (including existing ones via SIP trunking), outbound campaigns, web widgets, chat and SMS. Post-call analytics, A/B testing and AI quality assurance cover up to 100% of calls.
Pricing is pay-as-you-go at $0.07-$0.31 per minute depending on the LLM, voice and add-ons, with $10 in free credits and no contract. An Enterprise plan adds custom pricing, SSO, HIPAA BAA and dedicated support. It suits contact centers, healthcare, financial services and developers building phone automation.
Key features
- Drag-and-drop visual call flow builder
- Simulation testing and regression tests from real calls
- Outbound batch campaigns with pacing, retries and voicemail handling
- IVR navigation with digit pressing and extensions
- Live call monitoring with human takeover
- Agentic human handoffs and call transfer
- CRM integration with call outcomes written back
- Choice of LLMs and TTS voices including ElevenLabs and OpenAI
Use cases
Who it's for
AI receptionist
Answer inbound calls 24/7, handle routine requests and transfer complex ones to staff.
Appointment scheduling
Check calendar availability and book appointments during the call, as used by healthcare providers.
Lead qualification campaigns
Upload a contact list and run outbound calls that qualify leads and log results to the CRM.
Debt collection and surveys
Run high-volume outbound calls for collections or customer surveys with compliance controls.
Retell AI pricing
From the vendor's site, checked Nov 8, 2026; we re-check prices monthly. Prices change — confirm on their pricing page.
Pay as you go
usage-based
$0.07-$0.31/min (voice), $0.002+/msg (chat)
- $10 in free credits
- Full platform access
- 20 free concurrent calls
- Webhooks and API access
- Community and email support
Enterprise
custom
Custom
- No cap on concurrent calls
- Custom SSO and role-based access control
- Custom MSA/DPA/BAA
- 24/7 support with dedicated portal
- Dedicated stable server (add-on)
Get an email when Retell AI changes its prices
One mail per change, a stop link in each. Nothing else.
How Retell AI compares
- Retell AI has no free plan, while 2 of the 4 alternatives below have one.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| RRetell AI | — | — | — | |||
V Vapi | $29/mo | — | Retell AI vs Vapi | |||
P PolyAI | Quote | — | — | Retell AI vs PolyAI | ||
B Bland AI | $299/mo | — | — | Retell AI vs Bland AI | ||
S Synthflow | Quote | — | — | — | Retell AI vs Synthflow |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- $10 free credits and no annual contract
- About 600ms response latency
- HIPAA, SOC 2 Type II, GDPR and ISO 27001 compliance
- Connects existing numbers via SIP trunking with no telephony charge
Limitations
- Per-minute costs vary widely by model, voice and add-ons
- Extra concurrency beyond 20 calls costs $8 per call per month
- HIPAA BAA, SSO and 24/7 support require Enterprise plan
Retell AI FAQ
How much does Retell AI cost?
Voice agents cost $0.07-$0.31 per minute depending on the LLM, voice and add-ons; chat agents start at $0.002 per message. Enterprise pricing is custom.
Is there a free option?
New accounts get $10 in free credits with full platform access and 20 free concurrent calls.
Can I use my existing phone number?
Yes, Retell connects to any telephony system through SIP trunking, with no Retell charge for custom telephony.
Is Retell AI HIPAA compliant?
Retell states compliance with HIPAA, SOC 2 Type II, GDPR and ISO 27001; HIPAA/BAA is part of the Enterprise plan.
Does it offer an API?
Yes, it provides APIs, SDKs and webhooks for programmatic control.
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