Persian speech-to-text API

STT API for real-time and async Persian transcription in voice agents, dictation, and meeting notes. With speaker diarization, end-of-turn detection, and mid-sentence code-switching between Persian and 60+ other supported languages.

$0.10/hour async · $0.12/hour real-time

Looking for Persian TTS API?
Try Soniox Text-to-Speech

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

Persian speech recognition for production voice apps

Persian is spoken by more than 110 million people across Iran, Afghanistan, Tajikistan, and beyond. If your voice agent, dictation app, or meeting notetaker serves them, speech-to-text has to handle Persian the way people actually speak it: regional accents, speakers who switch to English mid-sentence, and names, numbers, and IDs that have to come out exactly right.

Soniox STT transcribes Persian with native-speaker accuracy in real time over a WebSocket or asynchronously from recorded files, through one multilingual API built for 60+ languages. It follows speakers into other languages, labels who said what, and returns timestamps. Transcription biasing toward Persian is available through the language hints option.

Persian native-speaker accuracy

Accurate Persian speech recognition across accents, dialects, and real-world conversational speech.

Persian

“We tried a dozen speech-to-text and translation services. Soniox is the best, so that's what we use.”
MentraCayden Pierce, CEO/CTO at Mentra

Automatically detect and switch languages with Persian

Soniox identifies the language automatically and follows changes between Persian and other languages live, even within the same sentence.

Get every character right in Persian

Names, phone numbers, addresses, IDs, serial numbers, and other structured information spoken in Persian are recognized precisely.

Phone number

شماره من +49 172 684 9317 است.

Reference ID

شماره پرونده AX-4927-B است.

Mixed alphanumeric

شماره سریال دستگاه XR8Q-19F2 است.

International name

Nguyễn Minh Anh ساعت سه به جلسه ملحق می‌شود.

Improve Persian accuracy with context

Provide terminology, names, or custom vocabulary to guide Persian recognition toward the right words, without retraining models.

Know when the speaker is finished

Soniox detects when a Persian speaker has actually completed their thought, not just when they pause.

Know who said what in Persian

Soniox separates Persian speakers in real time, so every word stays connected to the person who said it.

Estimate your Persian speech-to-text API cost

Choose real-time or async transcription and set your monthly audio volume to estimate your Soniox API cost.

Pricing calculator

Persian speech-to-text API pricing

Sonioxvs

1,000 hours of audio / 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

Use Soniox in popular frameworks

Soniox integrates seamlessly with leading real-time communication platforms, AI frameworks, automation tools, and developer SDKs.

An open source framework and developer platform for building, testing, deploying, scaling, and observing agents in production.

Open source framework for voice and multimodal conversational AI.

Twilio is a cloud-based customer engagement platform (CPaaS) that provides APIs, allowing developers to integrate voice, messaging (SMS, WhatsApp), email, and authentication capabilities into applications.

Open-source development framework designed to build applications powered by large language models (LLMs).

The open-source AI toolkit designed to help developers build AI-powered applications and agents with React, Next.js, Vue, Svelte, Node.js, and more.

Open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats.

n8n is a powerful, low-code/pro-code workflow automation tool that connects various applications, APIs, and databases to automate tasks.

Build the next generation of voice products, from agents and wearables to dictation, translation, and real-time multilingual experiences.

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 real-time speech-to-text for Persian?
Yes. The real-time WebSocket API streams Persian words as they are spoken, without waiting for pauses or sentence boundaries. For recorded files, use the async API.
How accurate is Soniox for Persian?
Accuracy depends on your audio: accents, background noise, and how often speakers switch languages. Run your own Persian recordings through Soniox and other providers side by side in the live comparison tool.
How much does the Persian speech-to-text API cost?
$0.10 per hour of audio async and $0.12 per hour real-time. Pricing is usage-based and the same for every language.
Which SDKs can I use?
Can Soniox handle mixed-language speech involving Persian?
Yes. Soniox detects and transcribes language switches mid-sentence, even when Persian is mixed with English or other languages. It works without configuration, and language hints add a stronger bias toward the languages you expect.
Does Soniox support real-time translation from and to Persian?
Yes. Soniox translates between Persian and any of 60+ supported languages, covering 3,600 language pairs. Translation streams continuously as people speak, not after they finish.
Can Soniox recognize numbers, names, and alphanumerics in Persian?
Yes. Soniox captures phone numbers, email addresses, IDs, codes, and other alphanumerics as they are spoken in Persian, down to each digit and character.
Does Soniox support speaker diarization in Persian?
Yes. Soniox labels each speaker in real time and async, so Persian transcripts show who said what.
Can I improve accuracy for domain-specific Persian audio?
Yes. Add context such as industry, terminology, or participant names to guide Persian recognition, without retraining models.
Where is Persian speech data processed, and is it used for training?
In the region you choose: US, EU, Japan, India. Audio and transcripts stay in that region for both processing and storage, and content sent to the API is never used to train Soniox models. See data residency.
Is Soniox ready for production Persian workloads?
Yes. Soniox runs on production-hardened infrastructure with 99.9% uptime, low-latency word-by-word streaming, and priority support with severity-based incident response.
How do I get started?
Create an API key in the Soniox Console and follow the speech-to-text quickstart. For volume pricing or enterprise deployment, contact Soniox.

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