Retell AI

Retell AI is an AI Agents & Automation tool that enables businesses to build, deploy, and monitor production-ready AI voice agents. It automates phone calls at scale, boosting efficiency and performance across operations.

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At a glance

Pricing

Freemium · Enterprise

Free tier

Yes

API

Yes

Skill level

Technical

About

What is Retell AI?

Retell AI is a conversational voice AI platform designed for businesses to build, test, deploy, and monitor human-like AI phone agents at scale. It replaces traditional IVR systems with advanced conversational AI, improving call routing, reducing operational costs, and enhancing customer experience. The platform supports various use cases including lead qualification, customer support, receptionists, and dispatch services. With features like proprietary voice AI orchestration, ultra-realistic voices, and a turn-taking model, Retell AI delivers human-quality, low-latency phone conversations. It also offers a highly configurable agentic framework, real-time function calling, and streaming RAG for accurate, up-to-date information, ensuring consistently high quality in every AI call.

Best used for

Ideal for sales and support teams who need to automate inbound and outbound phone calls, qualify leads, and manage customer inquiries. Especially valuable for businesses looking to scale their call operations without sacrificing quality, leveraging human-like AI agents for tasks like appointment setting and dispatch services.

Common actions

automate phone calls

manage customer support

qualify leads

schedule appointments

deploy voice agents

Customer Support"AI Agents"

Capabilities

Key features

Human-like AI voice agents
Low-latency conversations
Real-time function calling
Streaming RAG knowledge base
Comprehensive agent testing
Batch calling campaigns
Verified phone numbers

Target Audience

startup foundersales repmarketersmall business owner

Integrations

hubspottwiliovonagego-high-leveln8nzapiersalesforceavaya+ 6 more

Pricing & Plans

Freemium · Enterprise

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FAQs

What is an AI voice agent and how does Retell AI implement it?

An AI voice agent is an autonomous system that can listen, speak, and hold natural phone conversations like a human. Retell AI uses proprietary voice AI orchestration with low-latency speech recognition, LLM-powered conversation understanding, and real-time function calling to create these agents.

Can I connect Retell AI agents to my existing phone number?

Yes, Retell AI supports integration with any telephony system through SIP trunking. This allows you to easily connect your existing phone number and deploy your AI-powered answering service or AI IVR without changing your current infrastructure.

What kind of compliance and security features does Retell AI offer?

Retell AI is fully compliant with HIPAA, SOC2 Type II, and GDPR, ensuring high standards for data privacy and security. It also offers SSO, personal info redaction, custom role-based control, and battle-tested infrastructure for scalability and reliability.

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AI Frameworks & Infra Chatbots & Conversational AI Workflow Agents Personal Assistants RAG & Document AI Voice Agents

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