The new frontier in Spanish
text-to-speech

Create extraordinary voice experiences in Spanish and 60+ languages with expressive control, exceptional precision, instant voice cloning, and low-latency streaming.

Trusted by teams building global voice products

Livekit
Krisp
Pipecat
Summary AI
Perplexity
Samsung
Wispr Flow
LG
Agora
Retell AI
Fireflies.ai
Skit.ai
Kindroid
Deliver Health
Truecaller
Journalia
Mobius
TranscribeMe
Vapi
Zomato
SLNG
Japan AI
Boost.ai
Convin
Genspark
HappyRobot
Uniscribe
Jamie.ai
InteractCX
The Plato
MobilApp
Onvego
Wonderful.ai
Manifone
Tana
Transync AI
SotaTek

A new standard for Spanish AI speech

Spanish is spoken by over 500 million people worldwide across Spain, Mexico, Colombia, Argentina, Peru, Venezuela, Chile, and beyond. Production text-to-speech for Spanish still breaks on the details that matter most: phone numbers get scrambled, names are mispronounced, and mixed-language text falls apart.

Soniox TTS handles the real-world patterns that other systems get wrong, delivering high-fidelity Spanish speech with robust pronunciation, precise rendering of alphanumerics, natural language switching, and low-latency streaming.

Exceptional quality in Spanish

Hear the same voice deliver natural, expressive speech in Spanish and across 60+ languages with consistent quality, identity, and pronunciation.

Hallucination-free Spanish speech generation

The Spanish text you send is exactly what gets spoken. No invented words, dropped content, or unexpected substitutions.

tts · fidelity
Input text

Su cita está confirmada para el 3 de junio a las 9:45.

Spoken

Su cita está confirmada para el 3 de junio a las 9:45.

Alphanumerics spoken correctly in Spanish

Email addresses, phone numbers, addresses, IDs, and codes spoken clearly and precisely in Spanish.

tts · alphanumerics
Phone number
+1 (415) 555-0132
Spoken

másunocuatrounocincocincocincocincocerounotresdos

Names pronounced naturally in Spanish

Handle person names, place names, brand names, and borrowed words with the pronunciation Spanish speakers expect.

tts · pronunciation
English name
Beyoncé
Spoken

bee · YON · say

Streaming Spanish speech before the sentence ends

Start generating Spanish speech from the first few words, before the full sentence is available, for low-latency voice agents and live systems.

Incoming textStreaming

Por supuesto, puedo ayudarle a cambiar su reserva. ¿Qué fecha le vendría mejor?

Generated speechSpeaking

Precise timing for every character

Character-level timestamps let applications synchronize Spanish text and audio, stop cleanly during interruptions, and continue from the correct point.

Agent
Su reserva incluye desayuno, salida tardía y traslado al aeropuerto
User
De hecho, ¿puedo cambiar las fechas?
Agent
Por supuesto. ¿Qué fechas le vendrían mejor?
Character timestamps
a6.50s
n6.55s
m6.65s
e6.70s
j6.75s
o6.80s
r6.85s
?6.90s

Seamless language switching with Spanish mid-sentence

Speak mixed-language text naturally in a single utterance, switching between Spanish and other languages with the right flow and pronunciation.

Spanish

Estimate your Spanish text-to-speech cost

Set your monthly generated speech volume to estimate your Soniox API cost for text-to-speech.

Pricing calculator

Stop overpaying for Spanish speech AI

Sonioxvs

1,000 hours of speech / 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.

Speech infrastructure for massive scale

Soniox Text-to-Speech API performance and reliability

Build on one API and deploy in your region

Use the same models and API everywhere, with in-region processing to meet latency, data residency, and regulatory requirements.

Available: US, EU, Japan, India
Coming soon: Korea, Australia, Canada, Saudi Arabia, UK, Brazil

View data residency docs
Soniox Text-to-Speech API performance and reliability

Run mission-critical systems with confidence

  • 99.9% uptime
    Production-hardened infrastructure with monitoring and redundancy.
  • low-latency streaming
    Process speech in real time with low latency for responsive voice applications.
  • Priority support
    Severity-based incident response with direct access to the Soniox team.
Onvego uses Soniox Text-to-Speech API for multilingual voice experiences

"Before Soniox, our international users always had a noticeably different experience. Now accuracy and responsiveness match across all regions…it feels like one system instead of five."

Alon Yair CTO of Onvego

Spanish text-to-speech use cases

Soniox TTS is built for Spanish voice applications where latency, accuracy, and reliability matter as much as voice quality.

Voice agents

Deliver fast, natural Spanish spoken responses for voice agents that need to feel real-time, interruption-friendly, and production-ready.

Enterprise IVR and customer support

Modernize Spanish customer interactions with fast, high-fidelity voice. Speak account data, verification codes, and addresses accurately at scale.

High-stakes structured speech

Read phone numbers, emails, addresses, IDs, PINs, and account data exactly as written in Spanish, without scrambled digits or letters.

Multilingual communication

Power live multilingual experiences with Spanish speech generation. Handle language switching mid-sentence and pronounce foreign words and names correctly.

Accessibility and assistive voice tools

Create dependable Spanish voice experiences for reading assistants, communication tools, and accessibility products.

Media and content production

Generate Spanish voiceovers, narration, and audio content at scale, with accurate pronunciation of names and technical terms.

Start generating natural speech from ~$0.70 per hour of generated audio.

Privacy and compliance, built right in

Never stored, never saved.

Audio stays in memory, everything is processed in real-time.

Built for privacy-critical use cases.

Adhering to leading global security, privacy, and compliance standards.

Trusted where privacy matters most.

Used in industries where speech is sensitive, from healthcare to enterprise.

Soniox is Soc 2 Type 2 compliant
Soniox is ISO 27001:2022 compliant
Soniox is HIPAA compliant
Soniox is GDPR compliant
SOC 2 Type 2 · ISO/IEC 27001:2022 · HIPAA · GDPR

Frequently asked questions

Does Soniox support text-to-speech for Spanish?
Yes. Soniox provides high-fidelity text-to-speech for Spanish with native-speaker fluency, accurate pronunciation, and support for streaming output.
How does Soniox TTS handle alphanumerics in Spanish?
Soniox TTS renders phone numbers, email addresses, IDs, PINs, and codes exactly as written when generating Spanish speech, without scrambled digits or dropped characters.
Can Soniox TTS handle mixed-language text with Spanish?
Yes. Soniox TTS supports seamless language switching mid-sentence, speaking mixed Spanish text naturally with the correct accent and flow for each language segment.
How does Soniox TTS pronounce names and foreign words in Spanish?
Soniox TTS handles person names, place names, brand names, and borrowed words with the pronunciation Spanish speakers expect, even when they come from a different language.
Is Soniox TTS fast enough for real-time Spanish voice agents?
Yes. Soniox TTS supports streaming speech generation, starting Spanish audio output before the full sentence is available. This enables low-latency responses for voice agents and live systems.
Where is Spanish speech data processed and stored?
Soniox processes and stores speech data entirely within your selected region, using identical models and APIs globally. This supports data residency, privacy, and regulatory requirements.
Is Soniox TTS suitable for production Spanish workloads?
Yes. Soniox TTS is built for high-concurrency production environments, offering:
- 99.9% uptime
- low-latency streaming
- Production-hardened infrastructure
- Priority enterprise support
How do I get started?
You can explore the API documentation to start building immediately, or contact Soniox for production and enterprise deployments.
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Documentation

Get up and running in minutes and spend your time building, not wrestling with the API.

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See what you’ll pay

Pay only for what you use with our flexible pricing. Built to scale with you.

Pricing details