Soniox

Multilingual speech AI platform: realtime STT, TTS and translation APIs

About Soniox

Soniox is a real-time voice AI platform providing speech-to-text, text-to-speech and speech translation in 60+ languages through one unified API, with native-speaker accuracy, low-latency streaming and seamless mid-sentence language switching. Developers use it to build voice agents, dictation, live captioning and multilingual products, with voice cloning and SOC 2, HIPAA and GDPR compliance.

Soniox website preview

Live preview of soniox.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Soniox: strengths & things to check

Strengths

Paid product with a commercial model behind it — support and continued development are funded by paying customers.
Covers speech to text, text to speech, api, voice ai, translation — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

No free tier is listed in this directory — budget for a paid plan, and use any trial the official site offers before buying.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1164 tools in the Developer Tools category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Soniox pricing

Pricing model	Paid — this directory does not list a free tier for it.
Free access	No free tier listed
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	soniox.com

Soniox key facts

Category: Developer Tools
Pricing: Paid — this directory does not list a free tier for it.
Focus areas: speech to text, text to speech, api, voice ai, translation
Official site: soniox.com

Soniox FAQ

How much does Soniox cost?

Paid — this directory does not list a free tier for it. Current plans and prices are listed on the official site (soniox.com).

What is Soniox used for?

Multilingual speech AI platform: realtime STT, TTS and translation APIs Its focus areas in the Developer Tools category: speech to text, text to speech, api, voice ai, translation.

Where can I try Soniox?

On its official site, soniox.com — the Visit Official Site button above goes straight there.

Soniox vs alternatives

	Soniox	Smallest AI	Azure AI Speech	Rev AI
Pricing	Paid — this directory does not list a free tier for it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas	speech to text, text to speech, api, voice ai, translation	voice ai, speech to text, text to speech, api, voice agents	text to speech, speech to text, microsoft azure, api	speech to text, api, transcription, developers
Official site	soniox.com	smallest.ai	azure.microsoft.com	rev.ai
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1164 tools. Alongside Soniox, it includes Timefold, QA Sphere, Greip, Zilliz Cloud.

PaidDeveloper Toolsspeech-to-texttext-to-speechapivoice-aitranslation

Alternatives to Soniox

Tools in the same Developer Tools category that share focus areas with Soniox — worth comparing before you commit:

Developer Tools

Smallest AI

Voice AI models for every part of the conversation

Freemiumvoice-aispeech-to-texttext-to-speechapi

Developer Tools

Azure AI Speech

Microsoft Azure speech services including neural text-to-speech, transcription and translation

Freemiumtext-to-speechspeech-to-textmicrosoft-azureapi

Developer Tools

Rev AI

Developer-first speech-to-text API delivering industry-leading accuracy at global scale.

Freemiumspeech-to-textapitranscriptiondevelopers

Developer Tools

SpeakCrate

Private text to speech with multilingual voices and an OpenAI-compatible API

Freetext-to-speechself-hostedopen-sourceapi

Developer Tools

WhisperAPI

Fast, accurate video and audio transcription API powered by OpenAI Whisper

Freemiumtranscriptionapispeech-to-textwhisper

Developer Tools

Accent

The first developer-oriented translation tool

Freelocalizationtranslationi18ngraphql

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Timefold — Scheduling optimization APIs - the fastest way to solve any scheduling problem; QA Sphere — AI-powered test management platform for efficient QA processes; Greip — Fraud prevention platform with real-time risk insights.