Understand every word, everywhere.

The world’s most accurate speech-to-text and translation API — built for applications, voice agents, and live systems.

Trusted by

One speech platform. Two ways to use it.

deployed_codeBuild with the Soniox API

For developers building speech into products.

Add real-time transcription, language and speaker detection, translation, and more to your apps and agents – with global language support and one API.

Explore API

Use the Soniox App

For individuals and teams working with voice every day.

Use the same speech intelligence to capture conversations, generate summaries, and type with your voice across mobile, desktop, and web.

Get the App

Production-ready speech, by design

Native-speaker accuracy in real-world speech

Get every word right across languages, accents, numbers, and domain-specific terms – even in fast, messy, multi-speaker conversations.

Multilingual by default

Work seamlessly across 60+ languages, including mixed-language speech when speakers switch mid-sentence.

Real-time streaming that keeps up with live speech

Process speech word by word as it’s spoken, without waiting for pauses, sentence boundaries, or clean input, for fast, responsive interactions.

Understand conversations, not just words

Know who’s speaking and when a thought ends, with speaker detection, end-of-speech detection, and domain-aware understanding built in.

One global API, deployed locally

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

“It just gets the words right — any language, any accent, any context. That’s what accuracy is supposed to look like.”

Tony Wang,
Cofounder & Chief Revenue Officer at Agora

Built for live, real-world speech

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Smart agents that stay in sync

Build fast, responsive assistants that process speech word by word, not after the sentence ends. Handle interruptions, mid-sentence language switching, and real conversations across 60+ languages.

hearing

Devices that truly understand speech

Power voice interfaces on any device, from wearables to kiosks. Low-latency streaming, lightweight integration, and native-speaker accuracy, even in noisy, real-world environments.

language

Global meetings, without the lag

Translate speech as it’s spoken, not after pauses or sentence boundaries. Keep multilingual meetings flowing naturally, with instant understanding for every participant.

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Dictation and capture that miss nothing

From voice typing to live notes, Soniox keeps up with fast speakers, overlapping voices, and mixed languages, delivering speaker-aware, structured transcripts in real time.

One global streaming API for transcription, translation, speaker detection, and conversational understanding, deployed where your users are.

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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.

SOC 2 Type II–certified and HIPAA-ready from day one.

Trusted where privacy matters most.

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

SOC 2 Type 2 compliant

HIPAA compliant

GDPR compliant

Start building with Soniox

Build real-time speech into your products with a single global API.

Build with API

See how Soniox compares

Test Soniox side by side with Google, OpenAI, Azure, and more. Same audio. Same conditions. Live, transparent results.

Try Soniox Compare

What's new

The latest news and announcements from Soniox.

January 15, 2026

Soniox App: Everything you do with voice in your language

The Soniox App is now one unified voice workspace.

December 9, 2025

Introducing the Soniox App for business

A shared space for your team’s calls, meetings, and interviews.

November 19, 2025

Soniox Sovereign Cloud for effortlessly global, compliant, and performant speech AI

Sovereign Cloud is now available, letting you run Soniox in regions where your users and data live.

November 5, 2025

Introducing the new Soniox App: transcribe, translate, and understand any speech, in any language

Soniox App brings the world’s most advanced speech AI into your pocket.

October 27, 2025

Free credits update for Soniox API

We’re discontinuing free API credits due to widespread abuse and spam signups.

October 21, 2025

Soniox v3

Soniox v3 is our most advanced speech AI yet — designed for accuracy, fluency, and speed at scale.

July 15, 2025

The fastest way to find out which voice AI actually works

Choosing a speech API isn’t just about specs. It’s about what happens when real-life audio hits the system.

June 17, 2025

Just launched: Real-time speech translation AI for the world

Today, we’re launching real-time multilingual speech translation in the Soniox API, as well as a brand new mobile app that brings the same technology to your pocket.

May 6, 2025

Introducing Soniox App

The first mobile app powered by a universal speech AI model that delivers real-time, high-accuracy transcription in over 60 languages.

April 25, 2025

One speech AI for the world

Soniox Speech-to-Text AI — a single, universal model that understands speech in over 60 languages, in real-time, with high accuracy. And more importantly, it works the way people actually speak.

Frequently asked questions

What is Soniox?arrow_downward

Soniox is a real-time voice AI platform that turns speech into text and translations instantly. It works across 60+ languages and powers both the Soniox App for individuals and teams, and a Speech-to-Text API for developers and enterprises.

What does “speech AI” mean?arrow_downward

Speech AI or Voice AI refers to systems that understand spoken language in real time. Soniox goes beyond basic transcription by handling live speech, multiple speakers, mixed languages, punctuation, formatting, and real-world conversations as they happen.

What can I do with the Soniox App?arrow_downward

With the Soniox App, you can:

- Transcribe conversations live
- Translate speech in real time between languages
- Dictate text into any app or text field
- Capture meetings, notes, and ideas automatically

All on desktop and mobile, with one subscription.

What’s the difference between the Soniox App and the API?arrow_downward

Soniox App is a ready-to-use product for individuals and teams.

Soniox API is for developers who want to build speech recognition, translation, or voice-powered features into their own applications.

Both use the same underlying speech AI models.

Does Soniox offer a general-purpose speech-to-text API?arrow_downward

Yes. Soniox provides a production-ready, real-time speech-to-text and translation API designed for live applications, voice agents, meetings, and large-scale enterprise systems.

Can Soniox handle mixed languages in the same conversation?arrow_downward

Yes. Soniox can accurately recognize and transcribe conversations where speakers switch languages mid-sentence or mid-conversation — without needing manual language selection.

Can Soniox distinguish between different speakers?arrow_downward

Yes. Soniox supports speaker detection, allowing transcripts to clearly separate who said what, even in fast-paced or overlapping conversations.

Is Soniox suitable for developers and enterprise use?arrow_downward

Absolutely. Soniox is built for mission-critical use cases, offering:

- Low-latency real-time streaming
- High accuracy across accents and domains
- Scalable infrastructure
- Enterprise-grade security and compliance options

What makes Soniox different from other speech-to-text solutions?arrow_downward

Soniox is optimized for real-world speech, not just clean audio. It delivers:

- Native-speaker accuracy across 60+ languages
- Real-time transcription without waiting for sentence boundaries
- Mixed-language support
- Strong handling of numbers, names, and domain-specific terms
- A single platform powering both an app and an API

Do I need to be a developer to use Soniox?arrow_downward

No. If you want to transcribe, translate, or dictate speech, you can start immediately with the Soniox App. Developers can use the API to build custom voice-enabled applications.

How do I get started?arrow_downward

You can:

- Get the App to start using Soniox immediately, or
- Build with API to integrate Soniox into your product or workflow

Both options are available without long-term commitments.