The voice platform for every language
Today, we’re launching Soniox Text-to-Speech: a new API for generating high-fidelity speech in 60+ languages, built for the details that matter in real products.
Most text-to-speech systems sound good on simple prompts. Production systems are harder. 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.
Soniox TTS is built to solve these problems.
It delivers native-speaker-quality speech generation across 60+ languages with accurate pronunciation, precise rendering of alphanumerics, natural language switching, and ultra-low-latency streaming for live voice applications. It is designed for the next generation of voice products: systems that need to sound natural, stay faithful to the text, and perform reliably at scale.
This is a major step for Soniox. We are expanding from speech-to-text into a complete voice platform for understanding and generating speech across languages.
Built for precision
Soniox TTS is designed for the hardest parts of speech generation:
- Native-speaker quality in 60+ languages
- Hallucination-free speech generation with no invented words, dropped content, or unexpected substitutions
- Correct rendering of alphanumerics such as email addresses, phone numbers, addresses, IDs, and codes
- Accurate pronunciation for names, brands, foreign words, and borrowed terms
- Streaming generation before the sentence ends for ultra-low-latency voice systems
- Production-grade infrastructure for high-concurrency workloads
In short, Soniox TTS is built to get the details right.
Built for real voice products
Soniox TTS is designed for applications where latency, accuracy, and reliability matter as much as naturalness.
Voice agents
Generate spoken responses that feel immediate, natural, and interruption-friendly.
Enterprise IVR and customer support
Speak account data, verification codes, addresses, and multilingual responses accurately at scale.
High-stakes structured speech
Read phone numbers, emails, IDs, PINs, and account data exactly as written.
Multilingual communication
Generate speech across 60+ languages, including mixed-language text and mid-sentence switching.
Accessibility and assistive voice tools
Create voice experiences that are clear, dependable, and faithful to the source text.
Media and content production
Generate narration and voiceovers across languages with accurate pronunciation of names and technical terms.
One provider for the full voice stack
This launch is bigger than a new TTS model.
With Soniox STT and TTS, developers and companies can now work with one provider for the core voice layer. That means one platform for speech-to-text, text-to-speech, multilingual voice experiences, real-time voice agents, regional deployment, compliance, and scaling.
Soniox provides:
- STT and TTS in one platform
- Regional deployments and data residency in the US, EU, and JP
- One provider for infrastructure, compliance, scaling, and usage management
Instead of stitching together multiple voice vendors, teams can build on a single platform designed for global voice applications from day one.
Talk to Soniox on the homepage
To mark the launch, we also built a new interactive voice agent experience directly on the Soniox homepage. You can immediately talk to Soniox, and Soniox will understand and respond in your language with native-speaker-quality understanding and generation.
We are also releasing a voice agent demo app that developers can use right away as a starting point for building their own voice agents with Soniox.
Full API, docs, and SDK support
Soniox TTS launches with a complete developer platform:
- Full Text-to-Speech API
- New docs, guides, and API references
- Extended SDKs with TTS support
We are also working to expand Soniox TTS into the broader voice ecosystem. Integrations with frameworks such as Pipecat and LiveKit are under review by their teams, making it easier to adopt Soniox across existing voice agent stacks.
Compare Soniox side by side
We also built a new Compare text-to-speech providers experience.
Developers can test Soniox against other providers on the same text and hear the difference directly, especially on the cases that matter most in production: pronunciation, alphanumerics, multilingual synthesis, and mixed-language text.
It is a more transparent and practical way to evaluate TTS quality.
Pricing built for scale
Soniox TTS is launching at $0.70 per hour of generated speech.
That pricing makes high-quality voice generation viable for large-scale products, not just small pilots. Combined with Soniox STT, it gives developers a strong foundation for building global voice applications with the right mix of quality, speed, and cost.
A new chapter for Soniox
This launch marks a major transition for the company.
Soniox started by building one of the most advanced speech-to-text systems in the world. With the launch of Soniox TTS, we are taking the next step: becoming the voice platform for every language.
The future of software is not just text in and text out. It is speech in and speech out, in every language, with the accuracy, speed, and reliability that real users expect.
That is what Soniox is built for.
Build with the API. Explore the docs. Talk to Soniox. And hear the difference for yourself.