Retell AI
AI voice agent platform for phone call centers
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Quick Answer
Retell AI lets businesses build phone agents that transfer calls, book appointments and navigate IVR menus. It has ~600ms latency and integrations with tools like Twilio, Vonage and Make. You can try it for free, with an enterprise plan through sales.
Retell AI is an AI voice agent platform for phone call centers that enables businesses to automate inbound and outbound calls with human-like conversational AI. It features ultra-realistic voices, low-latency responses, and real-time function calling for tasks like booking appointments and updating records.
Retell AI offers proprietary Voice AI Orchestration with ~600ms latency and ultra-realistic voices, enabling human-quality, low-latency phone conversations at scale. It also provides an AI-powered no-code studio for building and managing agents.
Decision Intelligence
Best For
Type
Starting Price
$0.07/mo
Billing Cycle
Usage Based
Free Trial
No
Credit Card
Not Required
Free Plan
No
Dimension Scores
· 8.1 avgHow good it is, across universal quality axes
Task Scores
· 7.9 avgWhat it can do, per category it works in · showing 10 of 10 tasks scoring 5+
Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →
Real-time speech & transcription models for voice agents
The HubSpot Customer Platform — software & tools for your business
Automate AI workflows, agents, and apps across 9,000+ apps
Connect Retell AI to Make for workflow automation.
Integrate with Twilio for telephony features and call management.
Connect with Vonage for inbound and outbound call handling.
Integrate with Go High Level for CRM and marketing automation.
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Complexity
Company Size
Team Size
Skill Level
Deployment
Demo
Open demoCompliance audit trail
2 eventsThe Model(s) Behind It
Model details — extracted from public vendor sources by our pipeline (AI extraction plus a source check) or admin-entered. Shown as claimed by the vendor; not independently audited by Intelloro.
Pricing verified from the vendor pricing page.
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User Reviews
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Who It's For1 rolesCustomer Service Representatives
Job Roles
Platform, Content & Languages3 content types11 languagesTextAudioChatbotEnglishPortuguese+14 more
Output Languages
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Accepts
Produces
Frequently Asked Questions
What can Retell AI do?
Retell AI can: Call transfer between human and AI, Appointment booking and availability checks, Knowledge base integration for AI agents, IVR navigation and keypad menu handling. Best for: Call centers automating high-volume customer interactions.
How much does Retell AI cost?
Retell AI is a paid tool starting from $0.07 (usage-based).
Is Retell AI free?
No, Retell AI is a paid tool. Check the official pricing page for current plans.
What makes Retell AI unique?
Retell AI offers proprietary Voice AI Orchestration with ~600ms latency and ultra-realistic voices, enabling human-quality, low-latency phone conversations at scale. It also provides an AI-powered no-code studio for building and managing agents.
Does Retell AI have an API?
Yes, Retell AI offers a public API for developers to integrate its capabilities into custom applications and workflows.
What platforms does Retell AI support?
Retell AI is available on web and API.
What languages does Retell AI support?
Retell AI supports 11 languages including English, Portuguese, Spanish, German, Arabic, and more.
Who is Retell AI for?
Retell AI is designed for Call centers automating high-volume customer interactions; Healthcare providers streamlining patient scheduling and inquiries; Financial services firms enhancing customer support and lead qualification.
Trust Score
Excellent
Based on 15 data signals
Confidence: High
Reflects publicly available data, not an independent audit
Not yet checked
Some details are AI-generated estimates — verify with the vendor.
AI-generated estimate: What Makes Unique
How we source dataAI Governance & Regulatory Disclosures
Legally-sensitive fields — extracted from public vendor sources by our pipeline (AI extraction plus a source check) or admin-entered. Shown as claimed by the vendor; not independently audited by Intelloro.