# Smallest AI

Add Smallest AI text-to-speech to Bolna for ultra-fast, lightweight voice synthesis. Optimized for low latency so your voice agents respond without any delay.

[Book a Demo](/content/meet/index.html) [Bolna Docs](/content/docs/providers/voice/smallest/index.html)

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## How Smallest AI 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.

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## 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.

**Voice Stack**

- Telephony -> Phone Network  
- STT -> Listener  
- LLM -> Reasoning  
- TTS -> Voice  
- Tools -> Actions

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

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# Overview

Smallest AI provides ultra lightweight text-to-speech optimized for edge computing and resource constrained environments. With Bolna's Smallest integration, you can deploy voice agents with minimal computational overhead while maintaining good voice quality and low latency.

Smallest is ideal for high scale deployments where cost per synthesis and infrastructure efficiency are primary concerns.

## Features & Use Cases

**Ultra Lightweight**  
Minimal computational requirements enable deployment on edge devices and cost-effective infrastructure.

**Low Latency**  
Optimized for speed with fast synthesis times for real time applications.

**Cost Effective**  
Lower pricing structure ideal for high volume deployments where cost per call matters.

**Edge Computing Ready**  
Can run on resource constrained environments including IoT devices and edge servers.

**Use Case: IoT Voice Interfaces**  
Deploy voice agents on edge devices like smart speakers or embedded systems with limited processing power.

**Use Case: High Volume Cost Optimization**  
Run massive call center operations where TTS costs significantly impact total cost of ownership.

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## Other providers in this layer

- [Synthesizer **Cartesia**: Add Cartesia text-to-speech to Bolna voice agents for ultra-fast, natural sounding voice output. Built from the ground up for real-time phone conversations.](/content/integrations/cartesia/index.html)  
- [Synthesizer **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.](/content/integrations/elevenlabs/index.html)  
- [Synthesizer **Rime**: Use Rime neural speech synthesis with Bolna voice agents for expressive, natural sounding voices. High quality TTS that makes phone conversations engaging.](/content/integrations/rime/index.html)

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## See where Smallest AI fits in your production workflow

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

[Book a Demo](/content/meet/index.html) [Read Bolna Docs](/content/docs/providers/voice/smallest/index.html)