Synthesizer
Smallest AI logo

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.

ttssynthesizerlow-latencysmallestedgelightweight
At a glance

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.

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

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.

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 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.