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Russian to Spanish speech translation API

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

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Production-ready Russian to Spanish translation API

Real Russian 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.

Russian (Indo-European > Slavic > East 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.

Russian is written in Cyrillic and Spanish in Latin, so Soniox emits correctly scripted Spanish text.

A breakthrough in real-time Russian to Spanish translation

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Translate before the sentence ends

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

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Directional ru to es streaming

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

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High quality Spanish output

Same model across every language, including historically underserved ones.

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Native-speaker Russian STT accuracy

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

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Names, numbers, and domain terms

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

config.json
{
  "model": "stt-rt-v4",
  "translation": {
    "type": "one_way",
    "source_language": "ru",
    "target_language": "es"
  }
}

Russian and Spanish through a single stream

Russian to Spanish translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and Spanish translation streams mid-sentence in the same labeled token stream.

Turn it on by adding a translation block with source_language: "ru" and target_language: "es". It runs on the same WebSocket and the same model, with no extra round trip.

Live Russian to Spanish: written and spoken

Russian to Spanish speech-to-text

micLive Russian speecharrow_right_altsubjectSpanish text

Translate live Russian into written Spanish with the Soniox STT API. Soniox streams the Russian transcript and the Spanish translation as speech happens.

Use it for Spanish captions, subtitles, meeting translation, agent assist, and multilingual transcription.

Russian to Spanish speech-to-speech

micLive Russian speecharrow_right_altvolume_upSpoken Spanish

Build full spoken Russian to Spanish translation by combining Soniox STT and Soniox TTS. Soniox recognizes Russian, translates it, and speaks Spanish with low latency.

Use it for live interpreters, bilingual voice agents, travel assistants, and customer support.

Live Russian to Spanish translation in action

Stream Russian to Spanish one-way to push all speech into Spanish, or two-way to keep a bilingual conversation flowing between the two languages.

voice_selection
Russian speaker says: “Кинь, пожалуйста, линк на Google Sheet в наш чат.”
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Translated into Spanish in real time.

One-way translation

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

Ideal for live captions, multilingual meetings, broadcasts, lectures, and customer calls.

voice_selection
Russian speaker talks in Russian.
hearing
Spanish speaker hears Spanish.
voice_selection
Spanish speaker replies in Spanish.
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Russian speaker hears Russian.

Two-way translation

Translate between Russian and Spanish for live bilingual conversation. Each side speaks naturally and hears the other in their own language.

Soniox supports real-time two-way translation between any two of 60+ supported languages.

Accurate on both ends of the pair

Soniox transcribes Russian at 6.2% word error rate and Spanish at 5.3% word error rate. Accurate recognition on both sides is what makes the translation reliable.

speech_to_text

Speech-to-Text

Native-speaker accuracy across 60+ languages, with support for multilingual speech, alphanumerics, speaker diarization, context.

translate

Translation

Real-time streaming translation across 3,600 language pairs, built for high quality and low delay across all supported languages.

text_to_speech

Text-to-speech

High-fidelity speech generation in 60+ languages, built for names, alphanumerics, language switching, and ultra-low-latency streaming.

Together, they create a complete real-time low-latency speech AI platform.

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About Russian and Spanish

Russian has roughly 258,000,000 speakers across Russia, Belarus, Kazakhstan, and Kyrgyzstan. Spanish has roughly 500,000,000 speakers across Spain, Mexico, Colombia, and Argentina.

Russian is the most geographically widespread language of Eurasia, spanning 11 time zones.

Spanish is the second most spoken language in the world by native speakers, after Mandarin Chinese.

Soniox makes Russian to Spanish usable in real-time translation across every supported pair.

Translate Russian to any language

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

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate Spanish to Russianarrow_right_alttranslateRussian speech translationarrow_right_alttranslateSpanish speech translationarrow_right_altarrow_right_altRussian to Ukrainianarrow_right_altarrow_right_altRussian to Belarusianarrow_right_alt

Frequently asked questions

How do I translate Russian to Spanish with the API?arrow_downward
Add a translation block to your real-time request with source_language "ru" and target_language "es". Soniox transcribes Russian and streams the Spanish translation over the same WebSocket.
Is Russian to Spanish translation real-time?arrow_downward
Yes. Soniox streams Spanish while Russian is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.
What about translating Spanish to Russian?arrow_downward
That direction is supported too. See the Spanish to Russian page, or use two-way translation to run both directions in one session.
Does Soniox handle Cyrillic to Latin output?arrow_downward
Yes. Soniox outputs correctly scripted Spanish text in Latin directly in the token stream.
Does Soniox handle Russian dialects and accents?arrow_downward
Yes. Soniox handles Russian dialects like Northern Russian, Southern Russian, and Central Russian in a single model, so Spanish translation stays accurate across regions.
Which other providers support Russian to Spanish?arrow_downward
Based on their public docs, OpenAI, Google, Azure, and Speechmatics list both Russian and Spanish for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.
How fast is Russian to Spanish translation?arrow_downward
Soniox streams Spanish as Russian is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

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