
Retell AI
Conversational Voice API for Your LLM

Retell AI provides a Conversational Voice API that enables developers to integrate human-like voice interactions into their applications. With Retell AI's API, developers can easily connect their own Large Language Models (LLMs) to create AI-powered voice agents that can engage in natural and engaging conversations. Retell AI's API offers a range of features, including ultra-low latency, realistic voices with emotions, interruption handling, and end-of-turn detection, ensuring seamless and lifelike conversations. Developers can also customize various aspects of the conversation experience, such as voice stability, backchanneling, and custom voice cloning, to tailor the AI agent to their specific needs. Retell AI's API is designed to be easy to integrate with existing LLMs and frontend applications, making it accessible to developers of all levels.
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Features
- Ultra-low latency (~800ms)
- Realistic voices with emotions
- Interruption handling and end-of-turn detection
- Highly configurable in each part
- Easy integration with LLMs and frontend applications
Advantages
- Saves developers time and effort in building AI-powered voice interactions
- Provides access to state-of-the-art voice AI technology
- Enables developers to create custom voice agents tailored to their specific needs
- Offers a range of features to enhance the conversation experience
- Easy to integrate with existing systems and applications
Disadvantages
- May require some technical expertise to implement
- Pricing may not be suitable for all budgets
- Reliance on external LLMs for language generation
Frequently Asked Questions
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Q:How does Retell AI differentiate from competitors?
A:Retell AI focuses on innovating the AI conversation experience, providing the best support for "bring your own LLM," and offering full configurability in each step for developers. -
Q:How can I try it?
A:You can create an agent using a prompt on the Retell AI dashboard or read the documentation with tutorials. -
Q:Can I connect Twilio with Retell AI to make phone calls?
A:Yes, Retell AI provides an open-source demo repo to help you set up Twilio quickly. -
Q:Is Retell AI compliant with SOC2 and HIPAA regulations?
A:Retell AI is HIPAA compliant and is in the process of obtaining SOC2 Type II certification.
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Retell AI provides a Conversational Voice API that enables developers to integrate human-like voice interactions into their applications. With Retell AI's API, developers can easily connect their own Large Language Models (LLMs) to create AI-powered voice agents that can engage in natural and engaging conversations. Retell AI's API offers a range of features, including ultra-low latency, realistic voices with emotions, interruption handling, and end-of-turn detection, ensuring seamless and lifelike conversations. Developers can also customize various aspects of the conversation experience, such as voice stability, backchanneling, and custom voice cloning, to tailor the AI agent to their specific needs. Retell AI's API is designed to be easy to integrate with existing LLMs and frontend applications, making it accessible to developers of all levels.

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Retell AI provides a Conversational Voice API that enables developers to integrate human-like voice interactions into their applications. With Retell AI's API, developers can easily connect their own Large Language Models (LLMs) to create AI-powered voice agents that can engage in natural and engaging conversations. Retell AI's API offers a range of features, including ultra-low latency, realistic voices with emotions, interruption handling, and end-of-turn detection, ensuring seamless and lifelike conversations. Developers can also customize various aspects of the conversation experience, such as voice stability, backchanneling, and custom voice cloning, to tailor the AI agent to their specific needs. Retell AI's API is designed to be easy to integrate with existing LLMs and frontend applications, making it accessible to developers of all levels.
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