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Russian to Ukrainian speech translation API

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

Trusted by teams building global voice products

Production-ready Russian to Ukrainian translation API

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

Russian and Ukrainian both belong to the Indo-European > Slavic > East Slavic family, so cognates and shared structure carry over cleanly into the translated Ukrainian output.

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

A breakthrough in real-time Russian to Ukrainian translation

Translate before the sentence ends

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

Directional ru to uk streaming

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

High quality Ukrainian output

Same model across every language, including historically underserved ones.

Native-speaker Russian STT accuracy

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

Names, numbers, and domain terms

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

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

Russian and Ukrainian through a single stream

Russian to Ukrainian translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and Ukrainian 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: "uk". It runs on the same WebSocket and the same model, with no extra round trip.

Live Russian to Ukrainian: written and spoken

Russian to Ukrainian speech-to-text

Live Russian speechUkrainian text

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

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

Russian to Ukrainian speech-to-speech

Live Russian speechSpoken Ukrainian

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

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

Live Russian to Ukrainian translation in action

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

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

One-way translation

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

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

Russian speaker talks in Russian.
Ukrainian speaker hears Ukrainian.
Ukrainian speaker replies in Ukrainian.
Russian speaker hears Russian.

Two-way translation

Translate between Russian and Ukrainian 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 1.25% word error rate and Ukrainian at 1.25% word error rate. Accurate recognition on both sides is what makes the translation reliable.

Speech-to-Text

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

Translation

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

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.

About Russian and Ukrainian

Russian has roughly 258,000,000 speakers across Russia, Belarus, Kazakhstan, and Kyrgyzstan. Ukrainian has roughly 40,000,000 speakers across Ukraine.

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

Ukrainian is the third most spoken Slavic language by number of native speakers.

Russian and Ukrainian are closely related languages, which helps Soniox keep tone and meaning consistent across the pair.

Translate Russian to any language

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

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Frequently asked questions

How do I translate Russian to Ukrainian with the API?
Add a translation block to your real-time request with source_language "ru" and target_language "uk". Soniox transcribes Russian and streams the Ukrainian translation over the same WebSocket.
Is Russian to Ukrainian translation real-time?
Yes. Soniox streams Ukrainian while Russian is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.
What about translating Ukrainian to Russian?
That direction is supported too. See the Ukrainian to Russian page, or use two-way translation to run both directions in one session.
Russian and Ukrainian are both Indo-European > Slavic > East Slavic — does that affect quality?
Shared family structure and cognates generally help. Soniox uses the same model for every pair, so quality stays consistent whether the languages are closely related or not.
Does Soniox handle Russian dialects and accents?
Yes. Soniox handles Russian dialects like Northern Russian, Southern Russian, and Central Russian in a single model, so Ukrainian translation stays accurate across regions.
Which other providers support Russian to Ukrainian?
Based on their public docs, OpenAI, Azure, and Speechmatics list both Russian and Ukrainian for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.
How fast is Russian to Ukrainian translation?
Soniox streams Ukrainian as Russian is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

Simple, usage-based pricing

Translate live audio from Russian to Ukrainian from ~$0.18/hour.

Translation is already built into Soniox Speech-to-Text API. When turned on, it adds about ~$0.06/hour in output token costs.

View pricing

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