Introducing Eleven v3 (alpha)

Conversational AI

Build AI Agents that speak

Add voice to your agents on web, mobile or telephony in minutes. Our realtime API delivers low latency, full configurability, and seamless scalability.

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Low latency, configurable and scalable

Get the best combination of ultra-low latency, high quality voices, along with turn taking and interruption handling that can stand up to unpredictable conversations in the noisiest environments.

The complete Conversational AI toolkit

Conversational AI combines Speech to Text (transcription), an LLM, and Text to Speech, along with logic to handle turn taking and interruption handling to allow for natural back and forth conversation.

The full developer platform for deploying realistic and extensive voice agents

Low latency

Combine our Turbo TTS model with our fine tuned transcription service all on one server.

Advanced turn taking

Our custom interruption detection and turn taking system means agents know when to speak perfect for realtime agents.

Bring any LLM

Swap between Gemini, Claude, GPT any time or bring your own custom implementation.

External function calling

Integrate with any third party app to get real time information or take action.

Thousands of voices

Find a voice for any use case, situation or character from our library or clone your own.

Audit and evaluate

Monitor calls with full transcripts, recordings and automated evaluation.

31 languages (and counting)

Create multilingual agents that can speak with your customers in their native language.

Built on your knowledge base

Import existing documentation so your agents know everything about your business and products.

Take phone calls

Integrate seamlessly with Twilio or SIP trunk provider for both inbound and outbound

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Use cases

Customer Support

Handle a wide range of customer inquiries 24/7, reducing wait times and improving customer satisfaction. Agents can troubleshoot issues, process returns, and even upsell products, all while maintaining a consistent brand voice.

Scheduling

Simplify appointment booking and management, from healthcare to personal services. Clients can easily schedule, reschedule, or cancel appointments through natural conversation, reducing no-shows and improving operational efficiency.

Outbound Sales

Conduct personalized cold calling at scale, qualifying leads and setting appointments for your team. Agents can adapt their pitch based on customer responses, ensuring higher engagement and conversion rates.

Learning & Development

Create personalized training experiences that adapt to each employee's pace and role. Practice real-world scenarios like sales calls, difficult conversations, and compliance procedures through interactive voice simulations. Provide instant feedback, track skill progression, and deliver consistent training quality across global teams, reducing training costs while improving knowledge retention and employee performance.

Gaming

Create immersive gaming experiences, responding dynamically to player actions and choices. Intelligent NPCs (Non-Player Characters) can offer quests, provide guidance, and even adapt their personalities based on the player's behavior, enhancing game depth and replayability.

Education

Provide personalized learning experiences, offering explanations, quizzes, and adaptive lessons based on a student's progress. Support various subjects and learning styles, making education more accessible and engaging.

Fan Engagement

Create interactive experiences for fans, from trivia games to personalized content recommendations. Provide real-time updates, answer FAQs about players or celebrities, and even simulate conversations with fictional characters, deepening fan connection and loyalty.

Frequently asked questions

Yes, we have a WebSocket API and Javascript, React, Python and iOS SDKs.

There is no limit to the number of agents you can create on any plan. You are only limited by the number of concurrent calls available on your plan along with your monthly credit limit.

You can select from the leading Claude, GPT, and Gemini models or you can connect a custom LLM with a server integration.

Yes, with “Tools” you can make webhook requests to external services to get real-time data or take action.

You can integrate with Twilio using μ-law 8000 Hz audio encoding. Follow our Twilio guide to get started.