Text-to-speech built for precision
Generate high-fidelity speech in 60+ languages, built for names, alphanumerics, language switching, and ultra-low-latency streaming.
Trusted by teams building global voice products
Built for the hardest parts of speech generation
Text-to-speech has improved dramatically, but production systems still break on the details that matter most.
Phone numbers get scrambled. Email addresses are spoken incorrectly. Foreign names are mispronounced. Mixed-language text falls apart. Latency is too high for real-time conversation. And at scale, many providers struggle to stay consistent and support real production workloads.
Soniox TTS is built to solve these problems. It handles the real-world text patterns that other systems still get wrong, delivering high-fidelity speech across 60+ languages with robust pronunciation, precise rendering of alphanumerics, natural language switching, ultra-low-latency streaming, and infrastructure designed for production scale.
TTS that gets the details right
Native-speaker quality in 60+ languages
Generate speech with natural pronunciation and consistent quality across 60+ languages, not just English.
Let’s move the meeting to Thursday afternoon.
Hallucination-free speech generation
The text you send is exactly what gets spoken. No invented words, no dropped content, and no unexpected substitutions.
Your appointment is confirmed for 9:45 AM on June 3.
Your appointment is confirmed for 9:45 AM on June 3.
Alphanumerics spoken correctly
Speak email addresses, phone numbers, addresses, IDs, and codes with precision, exactly as typed.
plusonefouronefivefivefivefivezeroonethreetwo
Correct pronunciation for names and foreign words
Handle person names, place names, brand names, and borrowed words with the pronunciation users expect.
bee · YON · say
Streaming before the sentence ends
Start generating speech from the first few words, before the full sentence is available, for ultra-low-latency voice agents and live systems.
I’d be happy to help you reschedule that for tomorrow morning.
I’d be happy to help you reschedule that for tomorrow morning.
Seamless language switching mid-sentence
Speak mixed-language text naturally in a single utterance, with the right flow and pronunciation across language boundaries.
Hola, ¿cuál es el tracking number de mi pedido?
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. - Ultra-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
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.
Where sounding human is not enough
Soniox TTS is built for voice applications where latency, accuracy, and reliability matter as much as naturallnes.
Voice agents
Deliver fast, natural spoken responses for voice agents that need to feel real-time, interruption-friendly, and production-ready.
Enterprise IVR and customer support
Modernize customer interactions with fast, high-fidelity voice. Speak account data, verification codes, addresses, and multilingual responses accurately at scale.
High-stakes structured speech
Read phone numbers, emails, addresses, IDs, PINs, and account data exactly as written, without scrambled digits or letters.
Multilingual communication
Power live multilingual experiences with low-latency speech generation across 60+ languages. Handle language switching mid-sentence and pronounce foreign words, names, and entities correctly.
Accessibility and assistive voice tools
Create dependable voice experiences for reading assistants, communication tools, and accessibility products where speech must be clear, natural, and faithful to the source text.
Media and content production
Generate voiceovers, narration, and audio content across languages at scale, with accurate pronunciation of names, technical terms, and mixed-language scripts.
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.
Go global with one API
Get production-ready text-to-speech in 60+ languages.
Frequently asked questions
Which languages does Soniox Text-to-Speech support?
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?
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.
Build with APIDocumentation
Get up and running in minutes and spend your time building the product, not wrestling with the API.
Explore docsSee what you’ll pay
Pay only for what you use with our flexible pricing. Built to scale with you.
Pricing details