Soniox

Soniox is a real-time voice AI platform that provides speech-to-text, text-to-speech, and translation APIs with sub-200ms latency across 60+ languages.

What is Soniox?

Soniox is a multilingual speech AI platform that processes live or recorded audio to produce text transcripts, translations, and synthesized speech. It offers both a developer API for building voice-powered applications and a consumer app (Soniox App) for live transcription, translation, and dictation. The platform is built by Soniox and runs on cloud infrastructure with global data residency options.

Key Features

• Real-time streaming — Transcribes speech with under 200ms latency, outputting text before sentences finish.
• 60+ language support — Covers 60+ languages with native-speaker accuracy, including seamless language switching mid-conversation.
• Multi-speaker recognition — Distinguishes between speakers in live or recorded audio.
• Voice cloning — Creates high-fidelity digital voice replicas from a few seconds of audio (new feature).
• Translation across 3,600 language pairs — Provides real-time, context-aware speech translation for code-switching environments.
• Alphanumeric and domain-specific accuracy — Handles numbers, names, and specialized vocabulary reliably.
• Enterprise compliance — SOC 2 Type 2, ISO 27001, HIPAA, and GDPR certified.

Who is it for?

• Developers building voice agents or real-time applications — Use the API to add speech recognition, text-to-speech, and translation to products with minimal latency.
• Enterprise teams requiring multilingual transcription — Deploy for meetings, call centers, and government projects with data residency controls.
• Healthcare organizations — Leverage HIPAA-compliant speech-to-text for clinical documentation and patient interaction.
• Consumer users — Use the Soniox App for live transcription, translation, and voice typing on mobile and desktop.

What can you do with Soniox?

• Voice agents — Power conversational AI with low-latency speech recognition and natural speech output.
• Wearables — Deliver live voice experiences on devices needing streaming speech I/O.
• Speech translation — Build real-time speech-to-text or speech-to-speech translation across 60+ languages.
• Dictation and voice typing — Turn speech into clean, reliable text for messages, notes, and documents.

Pricing

Soniox offers usage-based pricing for the API with no long-term commitments. A consumer app subscription is also available. Exact pricing is provided on the Soniox pricing page.

FAQ

What languages does Soniox support?

Soniox supports over 60 languages and can handle mixed-language conversations and code-switching automatically.

Does Soniox offer a free trial?

The pricing page indicates a "pay only for what you use" model; a free trial may be available upon sign-up.

Can Soniox distinguish multiple speakers?

Yes, Soniox supports speaker detection for live and recorded audio, separating who said what even in overlapping speech.

Is Soniox compliant with healthcare privacy regulations?

Yes, Soniox is HIPAA compliant, along with SOC 2, ISO 27001, and GDPR certifications.

How fast is Soniox's real-time transcription?

Soniox achieves under 200ms latency for speech-to-text, allowing captions to appear before speakers finish talking.