Convert Any Voice into AI with Smallest.ai's Cutting-Edge API

Generate, clone, and customize AI voices with unparalleled accuracy. Smallest.ai’s AI Voice Cloning API enables businesses, developers, and content creators to replicate any voice in seconds—with studio-quality sound, real-time synthesis, and seamless API integration. Whether you're building AI-powered voice assistants, creating multilingual voiceovers, or automating customer interactions, our API ensures natural, expressive, and personalized AI voices at scale.

The stranger came early in February, one wintry day, through a biting wind and a driving snow, the last snowfall of the year, over the down, walking from Bramblehurst Railway Station, and carrying a little black portmanteau in his thickly gloved hand. He was wrapped up from head to foot, and the brim of his soft felt hat hid every inch of his face but the shiny tip of his nose; the snow had piled itself against his shoulders and chest, and added a white crest to the burden he carried. He staggered into the 'Coach and Horses' more dead than alive, and flung his portmanteau down.

Voice Setting

Voices

Language

Benefits of AI Voice Cloning API

Elevate digital content with expressive, human-like voices. Smallest.ai’s AI-powered TTS technology ensures clarity, natural rhythm, and authentic intonation, making it ideal for educational content, business applications, and interactive experiences.

1. Custom AI Voice Cloning at Scale

Say goodbye to expensive voice actors and long recording sessions. Smallest.ai’s API lets you clone voices instantly, making voice production scalable and cost-effective for businesses, media, and developers.

2. Real-Time Speech Generation with Ultra-Low Latency

Power chatbots, IVRs, and AI assistants with sub-100ms voice generation, ensuring real-time, natural speech interactions.

3. Seamless API Integration for Developers

Designed for ease of use, Smallest.ai’s REST API and SDKs allow instant voice cloning and synthesis with flexible customization options—no complex setup required.

Key Features of Smallest.ai’s AI Voice Cloning API

1. Instant Voice Cloning with Minimal Input

Clone a voice with just 5 seconds of audio input or generate high-accuracy clones with longer samples for professional-grade voice synthesis.

2. AI-Powered Voice Customization

Fine-tune speed, pitch, tone, and emotional delivery to match your brand’s identity or specific project needs.

3. Multi-Language & Accent Support

Generate cloned voices in 50+ languages and regional accents with phoneme-based speech synthesis for accurate pronunciation and natural intonation.

4. Developer-Friendly API & SDKs

Integrate AI voice cloning into apps, customer support systems, IVRs, and media workflows using Smallest.ai’s flexible API with advanced customization options.

5. Real-Time Processing Under 100ms

With lightning-fast processing, cloned voices can be deployed in real-time, making them ideal for virtual assistants, call centers, and AI-driven customer engagement.

6. Scalable AI Voice Solutions for Any Industry

From gaming & entertainment to e-learning & corporate communications, Smallest.ai’s voice cloning technology ensures consistent, high-quality AI-generated speech across all platforms

Smallest’s AI Voice Cloning Use Cases

Smallest.ai’s AI Voice Cloning API is designed for businesses, developers, and content creators looking to generate high-quality, scalable AI voices. Whether for customer service, entertainment, or education, our technology brings voice automation to life.

1. E-Learning & Training

Generate lifelike voiceovers for online courses, corporate training, and educational content in multiple languages. AI voice cloning saves production time while ensuring consistent, professional narration.

2. Customer Support & IVRs

Automate customer interactions with branded AI voices. Power IVR systems, chatbots, and virtual assistants with real-time, natural-sounding AI speech that enhances customer satisfaction.

3. Audiobooks & Podcasts

Create realistic AI narrators for audiobooks and podcasts. Instantly convert text into engaging, human-like audio while reducing reliance on voice actors.

4. Marketing & Advertising

Enhance brand storytelling with AI-generated voiceovers for ads, explainer videos, and promotional content. Maintain brand consistency while cutting down production costs.

Lifelike Voices in
16 Global Languages

Engage with customers globally using our natural-sounding voices

English

Hindi

Tamil

Marathi

Spanish

Bengali

Gujarati

Kannada

French

Hebrew

Italian

Arabic

Russian

German

Dutch

Polish

Scalable and Simple API Integration

Integrate the Waves API into your workflows to empower Voice Enabled applications at scale

Real Time APIGet upto 10 seconds of audio in <100ms using the Lightning TTS model

Easy CustomizabilityChange speed, sample rate, voice type and much more through a simple parameter change

Python SDKTry "pip install smallestai" and see the magic happen

Reliable and ScalableWe can handle over 1 Million RPM, with extremely low P99 failure rates

const options = {
  method: 'POST',
  headers: {
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: '{
    "voice_id":"<string>",
    "text":"<string>",
    "sample_rate":8000,
    "add_wav_header":true}'
  };

fetch('https://waves-api.smallest.ai/api/v1/lightning/get_speech',
   options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));

What do enterprise leaders
say about Smallest?

Real Feedback from delivered value

Smallest AI has been a game-changer for the Salon industry. Response to the bot has been incredible, it's already making a strong positive impact. With just a few minor tweaks like shortening call times and refining name pronunciation, it's nearly perfect. The experience feels polished and personal, and we're even exploring ways to integrate rewards for guest feedback. Overall, it's a powerful, intelligent tool that's getting people excited. I couldn't be happier with the results so far!

Tony Gordon

Co Founder | Gordan Salon

We've started integrating smallest.ai-based agents and are gradually migrating away from ElevenLabs. The experience has been great so far—excited to explore everything smallest has to offer!

Vishwajit Pureti

Founder CEO | Voice Craft AI

smallest.ai, led by Sudarshan, has achieved an outstanding level of TTS quality with significantly fewer resources, a leaner team, and minimal PR or fundraising compared to others in the space. It's a masterclass in building with focus and efficiency—credit where it's due!

Rohan Chaudhary

Founder | Rumik.ai

Tony Gordon

Co Founder | Gordan Salon

We've started integrating smallest.ai-based agents and are gradually migrating away from ElevenLabs. The experience has been great so far—excited to explore everything smallest has to offer!

Vishwajit Pureti

Founder CEO | Voice Craft AI

Rohan Chaudhary

Founder | Rumik.ai

Smallest AI voice agents have really helped us understand our users better and improve retention across different product lines. The way it connects with users feels very natural and easy—people are actually engaging more. We've started seeing real results in terms of repeat usage and satisfaction. What's exciting is that this is just the start. We're looking forward to exploring more ways to use Smallest AI to build deeper relationships and keep users coming back.

Neha Patil

Assistant Manager | Mosaic Wellness

Lightning v2 by smallest.ai is genuinely impressive—super lightweight and still delivers high-quality TTS. It's exciting to see voice synthesis becoming more accessible for developers with limited compute.

Nikhilesh Singh

Resercher | Salesforce

Voice is the next frontier — and with what smallest.ai has built, it finally feels like we're crossing that line where machines don't sound like machines anymore.

Shouvik Mukherjee

Founder | Bachao.ai

Neha Patil

Assistant Manager | Mosaic Wellness

Nikhilesh Singh

Resercher | Salesforce

Voice is the next frontier — and with what smallest.ai has built, it finally feels like we're crossing that line where machines don't sound like machines anymore.

Shouvik Mukherjee

Founder | Bachao.ai

We have tested others but smallest so far has shown the best performance even in demo. We would like to deploy this for all our properties

Sandeep Bhatnagar

COO | Truliv

Smallest is an exceptional team, and we are excited to collaborate with them. Their best-in-class quality and latency perfectly align with our needs. Highly recommended!!

Harinder Takhar

CEO | Paytm Labs

Smallest has been instrumental in realising our Voice AI strategy, thanks to the incredibly helpful and dedicated team.!!!

Satish Mani

MakeMyTrip Travel Services Pvt Ltd

We have tested others but smallest so far has shown the best performance even in demo. We would like to deploy this for all our properties

Sandeep Bhatnagar

COO | Truliv

Smallest is an exceptional team, and we are excited to collaborate with them. Their best-in-class quality and latency perfectly align with our needs. Highly recommended!!

Harinder Takhar

CEO | Paytm Labs

Smallest has been instrumental in realising our Voice AI strategy, thanks to the incredibly helpful and dedicated team.!!!

Satish Mani

MakeMyTrip Travel Services Pvt Ltd

New feature

Personalized AI Voice Cloning for Business & Creators

Voice cloning technology has evolved beyond generic AI voices—now, businesses and content creators can generate custom, lifelike AI voices with unmatched accuracy and flexibility. Smallest.ai’s next-gen AI Voice Cloning API allows businesses to create branded AI voices, enabling a new level of personalization and automation across industries. Whether it’s human-like AI assistants for customer service, multilingual e-learning narrations, or branded commercial voiceovers, Smallest.ai ensures high-quality, scalable AI voice cloning tailored to your needs.

AI-Powered Voice Replication for Instant Personalization

5-second voice cloning for rapid AI voice creation Voice customization options for pitch, tone, and emotions Instant API integration for real-time deployment across apps

Seamless API Integration & Real-Time Speech Generation

Ultra-low latency (<100ms) for interactive applications Support for 50+ languages & accents with phoneme-based accuracy Secure cloud-based voice cloning with privacy-first encryption

Answer to all
your questions

Have more questions? Contact our sales team to get the answer you're looking for.

Convert Any Voice into AI with Smallest.ai's Cutting-Edge API