Czech text-to-speech API
TTS API for real-time Czech speech generation in voice agents, IVR, and narration. With voice cloning, character-level timestamps, and language mixing between Czech and 60+ supported languages.
$0.70/hour of generated audio
Looking for Czech STT API?
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Czech speech synthesis for production voice apps
Czech is spoken by more than 11 million people in Czech Republic and around the world. If your voice agent, IVR, or narration product speaks to them, text-to-speech has to get the details right: phone numbers and codes read exactly as written, names pronounced the way Czech speakers expect, and text that mixes Czech with English spoken in one voice.
Soniox TTS generates Czech speech over a real-time WebSocket, starting audio from the first few words, or with a single REST request, through one multilingual API built for 60+ languages. Every voice speaks Czech, you can clone your own voice, mix languages in one sentence, and get character-level timestamps.
Exceptional quality in Czech
Hear the same voice deliver natural, expressive speech in Czech and across 60+ languages with consistent quality, identity, and pronunciation.
Hallucination-free Czech speech generation
The Czech text you send is exactly what gets spoken. No invented words, dropped content, or unexpected substitutions.
Vaše schůzka je potvrzena na 3. června v 9:45.
Vaše schůzka je potvrzena na 3. června v 9:45.
Alphanumerics spoken correctly in Czech
Email addresses, phone numbers, addresses, IDs, and codes spoken clearly and precisely in Czech.
plusjednačtyřijednapětpětpětpětnulajednatřidva
Names pronounced naturally in Czech
Handle person names, place names, brand names, and borrowed words with the pronunciation Czech speakers expect.
bee · YON · say
Streaming Czech speech before the sentence ends
Start generating Czech speech from the first few words, before the full sentence is available, for low-latency voice agents and live systems.
Jistě, rád vám pomůžu změnit rezervaci. Který termín by vám vyhovoval lépe?
Precise timing for every character
Character-level timestamps let applications synchronize Czech text and audio, stop cleanly during interruptions, and continue from the correct point.
Seamless language switching with Czech mid-sentence
Speak mixed-language text naturally in a single utterance, switching between Czech and other languages with the right flow and pronunciation.
Estimate your Czech text-to-speech API cost
Set your monthly generated speech volume to estimate your Soniox API cost for text-to-speech.
Pricing calculator
Czech text-to-speech API pricing
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, India
Coming soon: Korea, Australia, Canada, 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
Czech text-to-speech use cases
Soniox TTS is built for Czech voice applications where latency, accuracy, and reliability matter as much as voice quality.
Voice agents
Streaming Czech replies that start before the LLM finishes and stop cleanly when the user interrupts.
Enterprise IVR and customer support
Read Czech account data, verification codes, and addresses exactly as written, at scale.
Multilingual communication
Speak Czech mixed with other languages in one voice, with foreign names pronounced correctly.
Accessibility and assistive voice tools
Dependable Czech voice output for reading assistants and communication tools.
Media and content production
Czech narration and audio content at scale, with names and technical terms pronounced correctly.
Video voiceover
Czech voiceovers for product, training, and marketing videos, in a built-in or cloned voice.
Start generating Czech speech from $0.70 per hour of generated audio.
Go global with one API
Get production-ready text-to-speech in 60+ languages.
Also for Czech: Czech speech-to-text API for voice input, and the Czech voice AI platform for enterprise deployment.
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
Does Soniox support text-to-speech for Czech?
How natural does Soniox sound in Czech?
How much does the Czech text-to-speech API cost?
Which TTS model does Soniox use for Czech?
tts-rt-v2, one model for all 60+ supported languages. See TTS models.Which SDKs can I use?
Can I clone a voice for Czech?
How does Soniox TTS handle alphanumerics in Czech?
Can Soniox TTS handle mixed-language text with Czech?
How does Soniox TTS pronounce names and foreign words in Czech?
Is Soniox TTS fast enough for real-time Czech voice agents?
Where is Czech speech data processed, and is it used for training?
Is Soniox TTS ready for production Czech workloads?
How do I get started?
Get started with the Soniox API
Create an account instantly, or contact us to design a custom package for your business.
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Pricing details