Thai to Spanish speech translation API
Stream Thai (ภาษาไทย) speech and get Spanish (Español) back in real time. One WebSocket, ISO codes th to es, and ultra-low latency for voice agents and live apps.
Trusted by teams building global voice products
Production-ready Thai to Spanish translation API
Real Thai 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.
Thai (Kra-Dai > Tai) 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.
Thai is written in Thai and Spanish in Latin, so Soniox emits correctly scripted Spanish text.
A breakthrough in real-time Thai to Spanish translation
Translate before the sentence ends
Spanish meaning lands as Thai is spoken, not after the caption catches up.
Directional th to es streaming
Set the source and target codes once. Both arrive in a single labeled token stream.
High quality Spanish output
Same model across every language, including historically underserved ones.
Native-speaker Thai STT accuracy
Accurate Spanish translation starts with accurate Thai recognition across accents and language switching.
Names, numbers, and domain terms
Preserved across the pair, including phone numbers, emails, and IDs.
{
"model": "stt-rt-v5",
"translation": {
"type": "one_way",
"source_language": "th",
"target_language": "es"
}
}Thai and Spanish through a single stream
Thai 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: "th" and target_language: "es". It runs on the same WebSocket and the same model, with no extra round trip.
Live Thai to Spanish: written and spoken
Thai to Spanish speech-to-text
Translate live Thai into written Spanish with the Soniox STT API. Soniox streams the Thai transcript and the Spanish translation as speech happens.
Use it for Spanish captions, subtitles, meeting translation, agent assist, and multilingual transcription.
Thai to Spanish speech-to-speech
Build full spoken Thai to Spanish translation by combining Soniox STT and Soniox TTS. Soniox recognizes Thai, translates it, and speaks Spanish with low latency.
Use it for live interpreters, bilingual voice agents, travel assistants, and customer support.
Live Thai to Spanish translation in action
Stream Thai to Spanish one-way to push all speech into Spanish, or two-way to keep a bilingual conversation flowing between the two languages.
One-way translation
Translate live Thai into Spanish. Everyone in the conversation sees the same translated stream.
Ideal for live captions, multilingual meetings, broadcasts, lectures, and customer calls.
Two-way translation
Translate between Thai 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 Thai at 1.25% word error rate and Spanish 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 Thai and Spanish
Thai has roughly 70,000,000 speakers across Thailand, Laos, Myanmar, and Cambodia. Spanish has roughly 500,000,000 speakers across Spain, Mexico, Colombia, and Argentina.
The Thai script was created in 1283 by King Ramkhamhaeng the Great, adapted from Khmer script.
Spanish is the second most spoken language in the world by native speakers, after Mandarin Chinese.
Soniox makes Thai to Spanish usable in real-time translation across every supported pair.
Translate Thai to any language
From Thai to Spanish, or Thai to any of 60+ supported languages. All real-time.
Frequently asked questions
How do I translate Thai to Spanish with the API?
Is Thai to Spanish translation real-time?
What about translating Spanish to Thai?
Does Soniox handle Thai to Latin output?
Does Soniox handle Thai dialects and accents?
Which other providers support Thai to Spanish?
How fast is Thai to Spanish translation?
Simple, usage-based pricing
Translate live audio from Thai to Spanish 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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