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Retell AI
Voice agents
Freemium

Retell AI

Build ultra-low latency, human-like voice AI agents. Retell AI offers sub-second response times, natural turn-taking, and enterprise-grade compliance for automated phone operations.

Rating
0
Reviews
0
Upvotes
3 months ago
Listed
Voice agents
Conversational AI
Customer Support
Sales Automation
Telephony
LLM
Speech-to-Speech
Contact Center
Tool information
Provider
Retell AI
Platforms
Web
API
Languages
English
Spanish
French
German
Hindi
Chinese
Japanese
Korean
Portuguese
Russian
Italian
Dutch
Turkish
Polish
Vietnamese
API Available
Yes
Added to directory
3 months ago
Last updated
about 2 months ago
Rating
Not available
Pricing
Freemium

About Retell AI

What the tool does and who it's for

Retell AI is an enterprise-grade platform for building human-like voice AI agents. It features a proprietary voice orchestration engine designed for sub-second latency (approx. 600ms) and natural turn-taking. The platform allows developers and businesses to create agents that can handle complex inbound and outbound calls, recover from interruptions, and execute agentic actions mid-call. It supports integration with popular telephony providers like Twilio and Vonage, and offers a no-code visual builder for rapid deployment. With SOC 2 Type II, HIPAA, and GDPR compliance, it is tailored for industries like healthcare, insurance, and high-volume customer service.

Key capabilities

Ultra-low latency (600ms) for real-time, fluid conversations.
Proprietary orchestration for natural turn-taking and interruption handling.
No-code visual agent builder for rapid workflow design.
Supports multiple LLMs including GPT-4o, Claude 3.5/4.5, and Gemini.
Enterprise-grade compliance: SOC 2 Type II, HIPAA, GDPR, and PCI.
Advanced telephony support via Twilio, Vonage, or custom SIP trunking.
Dynamic Knowledge Base for syncing real-time data and documents.
Inbound and outbound call handling with automated scheduling capabilities.

Pricing

Freemium — plans below

Pay-as-you-go

Most popular

$0.07/min

  • $10 free credits to start
  • 20 free concurrent calls
  • 10 free knowledge bases
  • Community and Email support
  • Access to all standard LLMs

Enterprise

Contact sales

  • Unlimited concurrent calls
  • Dedicated stable server
  • HIPAA / BAA compliance
  • SSO and Role-based access control
  • Dedicated account manager
  • 24/7 Premium support

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