The new frontier in text-to-speech
Create extraordinary voice experiences in 60+ languages with expressive control, exceptional precision, instant voice cloning, and low-latency streaming.
$0.70 per generated hour.
Trusted by teams building global voice products
A new standard for AI speech
Natural, expressive, and multilingual speech with unprecedented control over how every voice sounds and performs.
Direct every performance
Audio tags let you direct emotion, delivery, and vocal reactions, from whispers, laughter, and hesitation to excitement, tension, and reassurance.
Speech that feels human
Soniox generates speech with natural rhythm, pacing, emphasis, and expression, adapting its delivery to the meaning of the text.
Natural and expressive
I thought I knew exactly how the evening would unfold. Then the phone rang. For a moment, I considered letting it go to voicemail—but something told me to answer.
Conversational
Absolutely. I found three flights that arrive before noon. The first is the least expensive, but the second gives you a much shorter connection. Would you like me to compare them?
Storytelling
By the time we reached the top of the hill, the sun was already beginning to set. We stopped for a moment, looked back at the road behind us, and realized the entire valley had turned gold.
Exceptional quality in 60+ languages
Hear the same voice deliver natural, expressive speech across 60+ languages with consistent quality, identity, and pronunciation.
Mix languages naturally
Soniox handles foreign names, technical terminology, and language changes naturally within one continuous utterance.
Your reservation is confirmed. Cuando llegues al hotel, muestra este código en recepción: ES-4928.
The meeting has been moved to Tuesday. Merci de confirmer votre disponibilité avant la fin de la journée.
To enable the new feature, open Settings and select 음성 복제, then tap Continue.
Your order is ready for pickup. 店頭で注文番号 A-7392 をお見せください.
The deployment completed successfully. Bitte prüfen Sie jetzt die Produktionsumgebung und bestätigen Sie, dass alles funktioniert.
Clone any voice from seconds of audio
Create a high-fidelity voice clone that preserves the speaker’s identity, accent, rhythm, personality, and expressive range.
From everyday recording to studio-quality speech
Record anywhere. Soniox removes background noise, echo, and recording artifacts to create a clean, faithful voice clone.
More than imitation
Generate entirely new speech that sounds natural, expressive, and unmistakably like the original speaker.
Exact speech
Complex terminology, names, numbers, and structured information spoken clearly and precisely.
Built for every domain
From medicine and science to law, finance, and engineering, Soniox accurately pronounces specialized terminology across fields of human knowledge.
The differential diagnosis includes pheochromocytoma, hyperthyroidism, and supraventricular tachycardia.
Deoxyribonucleic acid is transcribed into messenger RNA before translation occurs at the ribosome.
The court applied the doctrine of promissory estoppel and remanded the case for further proceedings.
The portfolio uses collateralized loan obligations, interest-rate swaps, and inflation-linked securities.
The system uses asynchronous replication, Byzantine fault tolerance, and hardware-accelerated cryptography.
Alphanumerics spoken correctly
Phone numbers, email addresses, verification codes, prices, dates, addresses, and identifiers are spoken clearly and precisely.
You can reach our support team at +1 415 682 9074.
Send the completed form to alex.chen+support@example.com.
Your verification code is 7Q4M9B. I repeat: 7Q4M9B.
Your delivery is going to 1427 North St. Andrews Place, Apartment 6B, Los Angeles, California 90028.
Your case number is CX-8047-A19, and the affected device is model XR-12 Pro.
Your total is $1,284.37, including tax and delivery.
Your appointment is scheduled for October 21, 2026, at 8:45 a.m.
Names pronounced naturally
Soniox uses language and context to pronounce people, places, brands, and organizations naturally and accurately.
Your appointment with Siobhan O’Connor is confirmed.
Nguyễn Minh Anh will be joining the meeting shortly.
Our Asian engineering office is located in Guangzhou.
Your hotel is located near the historic center of Aix-en-Provence.
The application is deployed on Kubernetes across several regions.
The workload runs on NVIDIA H100 GPUs.
Built for real-time conversation
low-latency streaming with precise control over what has already been spoken.
Speech starts before the sentence ends
Start playback while text is still streaming, without waiting for the full message.
Absolutely, I can help you change your reservation. What date would work better?
Precise timing for every character
Character-level timestamps let applications synchronize text and audio, stop cleanly during interruptions, and continue from the correct point.
Faster, more responsive speech
Reduce pauses between sentences and punctuation while preserving natural, fluent delivery.
Estimate your text-to-speech cost
Set your monthly generated speech volume to estimate your Soniox API cost for text-to-speech.
Pricing calculator
Stop overpaying for speech AI
1,000 hours of speech / month
Pricing assumptions
Based on public pay-as-you-go pricing. Enterprise discounts and committed-use contracts may differ. Some providers charge separately for certain features. The calculator uses the public price for the provider configuration that most closely matches Soniox.
Speech infrastructure for massive scale
Build on one API and deploy in your region
Use the same models and API everywhere, with in-region processing to meet latency, data residency, and regulatory requirements.
Available: US, EU, Japan
Coming soon: Korea, Australia, Canada, India, Saudi Arabia, UK, Brazil
Run mission-critical systems with confidence
- 99.9% uptime
Production-hardened infrastructure with monitoring and redundancy. - low-latency streaming
Process speech in real time with low latency for responsive voice applications. - Priority support
Severity-based incident response with direct access to the Soniox team.
"Before Soniox, our international users always had a noticeably different experience. Now accuracy and responsiveness match across all regions…it feels like one system instead of five."
Alon Yair CTO of Onvego
One model for every voice experience
Natural expression, precise speech, multilingual quality, voice cloning, and real-time performance in one model.
Voice agents
Build responsive agents that speak naturally, handle interruptions cleanly, and communicate names, numbers, and customer information accurately.
Customer support and enterprise IVR
Create reliable voice experiences for support, scheduling, account management, automated phone systems, and customer notifications.
Global products
Deliver consistent voice experiences across 60+ languages, including multilingual and mixed-language speech.
High-stakes speech
Read phone numbers, email addresses, verification codes, addresses, medical instructions, and technical information precisely.
Media, games, and entertainment
Generate expressive narration, character dialogue, localized content, voiceovers, and interactive experiences with built-in or cloned voices.
Accessibility and assistive tools
Build reading and communication tools where speech must remain clear, natural, and faithful to the source text.
Privacy and compliance, built right in
Never stored, never saved.
Audio stays in memory, everything is processed in real-time.
Built for privacy-critical use cases.
Adhering to leading global security, privacy, and compliance standards.
Trusted where privacy matters most.
Used in industries where speech is sensitive, from healthcare to enterprise.
Frequently asked questions
Which languages does Soniox Text-to-Speech support?
Which voices are available?
How does voice cloning work?
How does Soniox TTS handle phone numbers, emails, and other alphanumerics?
What does "hallucination-free" mean for TTS?
Can Soniox TTS handle mixed-language text in a single utterance?
Does Soniox TTS provide timestamps?
How much does Soniox Text-to-Speech cost?
How does Soniox TTS pronounce names and foreign words?
Is Soniox TTS fast enough for real-time voice agents?
Is Soniox TTS suitable for production and enterprise workloads?
- Scalable, production-hardened infrastructure
- Priority support with severity-based incident response
- Regional deployment for data residency compliance
How does Soniox handle privacy and data security?
How do I get started?
Ready to get started?
Create an account instantly, or contact us to design a custom package for your business.
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Explore docsSee what you’ll pay
Pay only for what you use with our flexible pricing. Built to scale with you.
Pricing details