Introduction

Integrating LLM models with voice technology to create natural-sounding speech has been challenging. Traditional methods combining Speech-to-Text, LLM, and Text-to-Speech often lead to slow response times and unnatural interactions. 🦥

Retell AI will make your powerful LLM speak like a human, unlocking scenarios such as AI receptionist, AI sales, AI customer services, etc.

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How to Navigate through Retell Docs

• The documentation tab (where you are looking at now) will contain guides and walkthroughs to get you started.

• The API Reference contains all detailed spec and definitions of our API.

Want to get started? Check out Quick Start

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How to Choose

1. 🧑‍🎨️ Dashboard (No code)

   • Build a proof of concept swiftly in 5 minutes without coding.
   • Acquire a Twilio phone number to set up an AI phone agent capable of making and receiving calls.

2. 🧑‍💻️ Retell LLM (Low code)

   • Access powerful APIs for agent creation, updates, and initiating phone calls, among others.
   • Enable developers to seamlessly integrate voice AI into your products.

3. 🧙 Custom LLM (Fully customizable)

   • Implement any custom LLM of your choice.
   • Integrate with your preferred telephony services, such as Vonage or SignalWire.