Czech speech-to-text transcription and translation
Designed for real-world Czech conversations
Czech is spoken by over 11 million people worldwide — primarily in Czech Republic, with speakers around the world. But most speech-to-text solutions struggle with real-world Czech, which comes with regional accents, fast speech, background noise, or mixed languages.
Understand how Czech is really spoken.
Accents, slang, fast speech, code-switching, and overlapping dialogue? No problem. Soniox handles the Czech used in real conversations with ease.
Transcribe and translate instantly - in one call.
Use a single API call to transcribe or translate Czech into English and other languages, as it's being spoken. Get token-level output in mere milliseconds.
Industry-leading accuracy in any condition.
Get top-tier accuracy on Czech audio with a Word Error Rate of just 9.7% — even in challenging conditions with multiple speakers, overlapping speech, and real-world noise.
Built for production and scale.
Supports real-time (streaming) and asynchronous (batch/file) Czech transcription, structured JSON output, low latency, and reliable back end.
Use Soniox anywhere Czech is spoken
Build Czech-speaking agents and assistants
Power fast and responsive voice agents that understand, transcribe, and respond to Czech.
Capture clinical conversations in Czech
Securely transcribe medical conversations and generate structured notes in Czech.
Generate live Czech captions and translations
Turn Czech podcasts, interviews, and videos into ready-to-publish subtitle files and live captions.
Transcribe and translate Czech on wearable devices
Power hands-free voice features on smartwatches, glasses, and fitness devices.
Built-in tools for Czech speech-to-text
Everything you need for real-time Czech transcription and translation - built right into the Soniox API.
- Real-time streaming and async support
- On the fly language detection
- Speaker-aware diarization with punctuation
- JSON formatted and production-ready
- Translate between Czech and 60 other languages
Czech transcription with industry-leading accuracy
Never miss a word in Czech, even when it's fast, messy, accented, or hard to hear. That accuracy means fewer errors, better UX, and apps people can trust.
- Streams fluent, full-sentence output in real time
- Handles regional Czech accents, noise, and overlapping speech
- Built to perform across real-world conditions
Soniox outperforms other providers for Czech accuracy (async model):
| Provider | Czech WER |
|---|---|
| Soniox | 9.7% |
| OpenAI | 17.5% |
| 18.2% | |
| AWS | 17.3% |
| Azure | 17.9% |
| Deepgram | 22.1% |
| AssemblyAI | 38.2% |
| Speechmatics | 14.4% |
| ElevenLabs | 12.3% |
Don't take our word for it. Use your own Czech audio to compare Soniox against other providers live.
Compare nowBenchmark reportFor developers
Build fast, accurate Czech voice features - live agents, subtitles, notes - all in one API. It's easy to add Czech voice capabilities to any app, bot, or tool.
Get API key For everyone
Transcribe, translate, and summarize Czech conversations on the go. Record live audio and get instant results - perfect for meetings, travel, or everyday conversations.
Get the App Frequently asked questions
How is Soniox different from other Czech speech APIs?
Most speech APIs are designed for lab conditions and struggle with real-world Czech speech and conversations, which can include fast talkers, messy audio, regional accents, interruptions, and more. Soniox is speaker-aware and can deliver live, fluent, and organized output with incredible accuracy. Use our live compare tool to test us against other providers.
Is Soniox just for transcription, or can I use Soniox to translate Czech speech as well?
You can transcribe and translate Czech in real time with a single API call, even when there are multiple languages being spoken at once. Perfect for multilingual meetings, support conversations, travel, or accessibility tools.
What types of apps can I build with Soniox?
Anything that needs to quickly and accurately understand Czech speech. Think: voice agents, call centers, media transcription, meeting assistants, wearable tools, medical note systems, and more.
What does the output look like?
You get structured JSON with words, timestamps, speakers, and optional translation. All ready to use in production. Check out our API docs.
How fast is Soniox?
Soniox streams transcription in milliseconds, with token-level updates and sentence-level fluency.
How much does Soniox cost?
For most use cases, it's simple: $0.10/hour for async (file uploads) and $0.12/hour for real-time (streaming). For advanced use cases with translation, custom context, or fine-grained control, pricing is based on token usage. See more on our pricing page.
Go global with one API
Get production-ready speech-to-text recognition, transcription, and translation in 60+ languages.