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Live Czech speech-to-text translation API

Translate Czech speech to and from 60+ languages in real time. Low-latency streaming, 3,600 language pairs, and accurate translation for voice agents, live captioning, and multilingual apps.

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Real-time Czech translation across 60+ languages

Czech is spoken by over 11 million people worldwide primarily in Czech Republic, with speakers around the world. Real Czech conversations carry accents, regional dialects, code switching, and domain-specific vocabulary. Most translation systems break on exactly that variation, or wait for a sentence to finish before producing anything usable.

Soniox handles that variation in a single model and translates Czech as it is spoken, not after the fact. Names, numbers, addresses, IDs, and domain terms carry through into the translated transcript, and Czech works as both a source and a target language — across its own Indo-European > Slavic > West Slavic family and any of 3,600 language pairs in total.

Real-time Czech translation

Soniox streams the Czech transcript and the translated text on the same connection, word by word, so meaning lands while the speaker is still talking.

Live Transcription
CzechTranscript

EnglishTranslation

One-way translation into Czech

Every speaker in the room lands in a single target language. Use it for Czech captions, subtitles, broadcasts, lectures, and multilingual meetings where many voices need to be understood in one.

YouTube

Two-way translation in Czech

Each side speaks naturally and hears the other in their own language. Use it for live interpreters, bilingual voice agents, travel assistants, and Czech customer support.

Live Conversation
Czech

Turn on Czech translation with a config change

Translation is part of the Soniox Speech-to-Text API, not a second service. Add a translation block to your request and translated tokens come back interleaved with transcripts on the same stream.

config.json
{
  "model": "stt-rt-v5",
  "translation": {
    "type": "one_way",
    "target_language": "cs"
  }
}

Translate Czech before the sentence ends

Meaning lands as it's spoken, not after the caption catches up.

Czech paired with 60+ languages

Both source and target. 3,600 pairs total, not English-centric.

Native-speaker Czech STT accuracy

Accurate translation starts with accurate recognition across accents, multilingual speech, and language switching.

Czech names, numbers, and domain terms

Preserved in both transcript and translation, including phone numbers, emails, and IDs.

Czech translation is built on top of the Soniox Speech-to-Text API. Turn it on by adding a translation block to your request. Translated tokens come back interleaved with transcripts on the same stream, with no extra round trip.

Explore the translation docs

Estimate your Czech speech-to-text translation cost

Set your monthly audio volume to estimate your Soniox API cost for real-time speech-to-text translation.

Pricing calculator

Stop overpaying for Czech speech AI

Sonioxvs

1,000 hours of audio / month

1025501002505001k2.5k5k10k100k

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.

Translate Czech to a specific language

Pick a target language for a Czech translation API guide with config, latency, and language pair details.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Frequently asked questions

Does Soniox translate Czech in real time?
Yes. Soniox streams Czech translation while speech is still happening, so users see or hear meaning immediately instead of waiting for the sentence to end.
What language pairs are supported for Czech?
Soniox supports translation between Czech and any of 60+ supported languages — 3,600 language pairs in total. Both Czech as the source and Czech as the target are supported.
How does two-way Czech translation work?
Two-way translation lets both sides of a conversation speak in their own language and hear the other side in theirs. A Czech speaker can talk in Czech while the other party hears their own language in real time, and vice versa.
Does Soniox handle dialects and accents in Czech?
Yes. Soniox handles Czech dialects like Bohemian, Moravian, and Silesian in a single model, along with accents and language switching, so live translation stays accurate across regions and registers.
Can Soniox translate names, numbers, and domain terms in Czech?
Yes. Soniox preserves the details that matter — names, phone numbers, emails, IDs, addresses, verification codes, and domain-specific terminology — in both the Czech transcript and the translated output.
Which other providers support live Czech translation?
Based on their public docs, OpenAI, Azure, and Speechmatics list Czech as a supported source language for real-time translation. Soniox is the only one of them that also supports two-way live translation across 60+ languages.
How fast is Czech translation?
Soniox streams translated text as Czech is being spoken, with ultra-low latency. Translation arrives before the sentence ends, rather than after long caption delays.
What can I build with Czech translation?
Common use cases include multilingual voice agents, live interpreters, multilingual meetings, customer support and contact centers, real-time translated captions and subtitles, and accessibility and communication tools — all with Czech as a source or target.

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