Czech to Spanish speech-to-text translation API

Stream Czech (Čeština) speech and get Spanish (Español) back in real time. One WebSocket, ISO codes cs to es, and ultra-low latency for voice agents and live apps.

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Production-ready Czech to Spanish translation API

Real Czech speech includes accents, regional dialects, code switching, and domain-specific vocabulary. Soniox recognizes it in a single model and streams Spanish while the speaker is still talking.

Czech (Indo-European > Slavic > West Slavic) and Spanish (Indo-European > Romance > Western Romance) come from different language families, so word order and morphology differ. Soniox reorders meaning in-stream instead of word by word.

Soniox preserves formatting in the translated transcript, including names, numbers, addresses, IDs, and domain-specific terms.

Real-time Czech to Spanish translation

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

Live Transcription

CzechTranscript

SpanishTranslation

One-way translation

Translate live Czech into Spanish. Everyone in the conversation sees the same translated stream.

YouTube

Two-way Czech and Spanish conversation

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

Live Conversation

Czech

Czech and Spanish through a single stream

Set the source and target codes once. Transcript and translation arrive interleaved on one labeled token stream, with no extra round trip.

config.json

{
  "model": "stt-rt-v5",
  "translation": {
    "type": "one_way",
    "source_language": "cs",
    "target_language": "es"
  }
}

A breakthrough in real-time Czech to Spanish translation

Translate before the sentence ends

Spanish meaning lands as Czech is spoken, not after the caption catches up.

Directional cs to es streaming

Set the source and target codes once. Both arrive in a single labeled token stream.

Native-speaker Czech STT accuracy

Accurate Spanish translation starts with accurate Czech recognition across accents and language switching.

Names, numbers, and domain terms

Preserved across the pair, including phone numbers, emails, and IDs.

Czech to Spanish translation is built on top of the Soniox Speech-to-Text API. Turn it on by adding a translation block to your request.

Explore the translation docs

Estimate your Czech to Spanish 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 any language

From Czech to Spanish, or Czech to any of 60+ supported languages. All real-time.

Frequently asked questions

How do I translate Czech to Spanish with the API?

Add a translation block to your real-time request with source_language "cs" and target_language "es". Soniox transcribes Czech and streams the Spanish translation over the same WebSocket.

Is Czech to Spanish translation real-time?

Yes. Soniox streams Spanish while Czech is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.

What about translating Spanish to Czech?

That direction is supported too. See the Spanish to Czech page, or use two-way translation to run both directions in one session.

Does Soniox handle Czech dialects and accents?

Yes. Soniox handles Czech dialects like Bohemian, Moravian, and Silesian in a single model, so Spanish translation stays accurate across regions.

Which other providers support Czech to Spanish?

Based on their public docs, OpenAI, Azure, and Speechmatics list both Czech and Spanish for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.

How fast is Czech to Spanish translation?

Soniox streams Spanish as Czech is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

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Documentation

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See what you’ll pay

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Pricing details