Synthesizer
ElevenLabs logo

ElevenLabs

Give your Bolna voice agents lifelike speech with ElevenLabs. Clone a custom voice or pick from a large library of expressive, natural sounding options.

ttssynthesizervoiceelevenlabstext-to-speechvoice-cloning
At a glance

How ElevenLabs fits in the stack

Best for

Natural delivery, tone, and response speed on live calls.

Use this layer when

You care about voice quality, expressiveness, or low-latency playback.

Connects to

LLM output upstream and the phone network downstream.

Voice Stack

Text-to-speech is the speaking layer

Text-to-speech is the speaking layer

This provider turns the agent’s response into audio the caller hears. It affects brand perception, caller comfort, and how quickly the next utterance can begin.

TelephonyPhone Network
STTListener
LLMReasoning
TTSVoice
ToolsActions

This page focuses on where ElevenLabs fits in a production voice stack. For full setup steps, credentials, and API details, use the documentation link above.

Overview

ElevenLabs is the leading provider of ultra-realistic, AI-generated voices. With ElevenLabs' text-to-speech (TTS) integration, your Bolna voice agents can speak with natural, emotive voices that are nearly indistinguishable from human speech.

Whether you need a professional business tone, a friendly customer service tone, or a custom voice clone that matches your brand, ElevenLabs delivers the highest quality voice synthesis available today.

Features & Use Cases

Fast & High-Quality (Multilingual Turbo v2)
A super-fast model built for real-time chats. It keeps delays low while sounding amazing in over 30 languages.

Huge Voice Library
Choose from thousands of ready-to-use voices of all ages, accents, and styles to perfectly match your brand's vibe.

Clone Your Own Voice
Create a perfect copy of any voice using just a few minutes of audio. Great for keeping your brand voice consistent.

Real Human Emotions
These voices don't sound like robots. They can naturally express real feelings - from excitement and empathy to serious professionalism.

Design a Brand New Voice
Just describe what you want (like "young, British, energetic"), and the AI will create a completely unique voice for you.

Smooth Real-Time Conversations
Audio streams instantly, so your voice agents can have natural, flowing conversations without any awkward, robotic pauses.

Total Control
Easily tweak exactly how words are said - adjusting the speed, adding emphasis, or inserting perfect pauses.

Browse this layer

Keep exploring the voice stack

Browse

Text-to-Speech

Text-to-speech turns your agent responses into spoken audio. Voice quality shapes how callers perceive your brand. Flat, robotic speech kills trust while natural, expressive voices build it. Bolna integrates with the fastest TTS providers so responses sound human and arrive without awkward pauses.

Browse

Telephony

Telephony providers connect your voice agents to the phone network so they can make and receive real calls. Bolna supports managed integrations with major carriers as well as bring-your-own-carrier via SIP trunking, giving you full control over call routing, number provisioning, and cost.

Browse

Large Language Models

The LLM is the brain of your voice agent. It understands what callers say and decides how to respond. Bolna lets you swap between models like GPT-4o, Claude, and DeepSeek without changing your agent configuration, so you can optimize for speed, cost, or reasoning depth.

Browse

Speech-to-Text

Speech-to-text converts what callers say into text that your LLM can process. Transcription accuracy and latency directly affect how natural a conversation feels. Bolna supports streaming STT providers optimized for telephony audio, including specialized models for Indian languages.

Browse

Tools & Workflows

Tools let your voice agents take action during a call, not just talk. Book a calendar slot, look up an order in Shopify, push a lead into your CRM, or trigger a multi-step automation in Zapier. These integrations turn voice agents from answering machines into workflow engines.

See where ElevenLabs fits in your production workflow

Use the demo to walk through provider selection, stack tradeoffs, and the exact workflow you want Bolna to automate.