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Spanish to Polish speech translation API

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

Trusted by teams building global voice products

Production-ready Spanish to Polish translation API

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

Spanish (Indo-European > Romance > Western Romance) and Polish (Indo-European > Slavic > West Slavic) 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.

A breakthrough in real-time Spanish to Polish translation

Translate before the sentence ends

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

Directional es to pl streaming

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

High quality Polish output

Same model across every language, including historically underserved ones.

Native-speaker Spanish STT accuracy

Accurate Polish translation starts with accurate Spanish 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": "es",
    "target_language": "pl"
  }
}

Spanish and Polish through a single stream

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

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

Live Spanish to Polish: written and spoken

Spanish to Polish speech-to-text

Live Spanish speechPolish text

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

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

Spanish to Polish speech-to-speech

Live Spanish speechSpoken Polish

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

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

Live Spanish to Polish translation in action

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

Spanish speaker says: “Necesito tu feedback sobre la ruta a la sierra.”
Translated into Polish in real time.

One-way translation

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

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

Spanish speaker talks in Spanish.
Polish speaker hears Polish.
Polish speaker replies in Polish.
Spanish speaker hears Spanish.

Two-way translation

Translate between Spanish and Polish 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 Spanish at 1.25% word error rate and Polish 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 Spanish and Polish

Spanish has roughly 500,000,000 speakers across Spain, Mexico, Colombia, and Argentina. Polish has roughly 45,000,000 speakers across Poland.

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

Polish is the second most widely spoken Slavic language by number of native speakers, after Russian.

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

Translate Spanish to any language

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

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Frequently asked questions

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

Simple, usage-based pricing

Translate live audio from Spanish to Polish 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.

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