Soniox - AI Tools Nav

What it is for

Soniox is a speech API + app desk: transcribe at $0.10–$0.12/hour, speak back with TTS, or translate 3,600 language pairs — then use the same models in the Soniox App. Use it when the job is realtime speech you meter in hours or tokens, not when you need a $20 chat seat.

What makes it unique: the cover is Soniox’s own docs — official Overview with Speech-to-Text / Text-to-Speech / Translation in the nav and the Products cards — not a pricing card.

Key features

Speech-to-Text API — async file at $0.10/hour or realtime stream at $0.12/hour; 60+ languages (pricing; docs). One STT. Async vs realtime is SKU. Translation (3,600 pairs on the same realtime call, no add-on), diarization, language ID, and formatting are modes of this hour, not extra products. App Translator is the App SKU of the same translation.
Text-to-Speech API — token-based, about $0.70/hour of speech ($4.00 / 1M input text tokens + $21.50 / 1M output audio tokens) (pricing TTS). A generate, not a transcript. Built-in voice names sit here.
Voice cloning — POST /v1/voices (or Console → Voices) uploads a ≤2-minute reference clip and returns a voice UUID you pass in TTS (Voice cloning; Create voice). A voice you own, not a generate. Recompute when a new TTS model ships.
Smart Scribe (App) — record a conversation online or offline; Free weekly credits (App pricing). A session, not a raw API call.
Voice Typing (App) — dictate into the focused field on mobile / desktop / web (App pricing). An insert, not a recorded session.

The Soniox Console (keys, usage, logs) is ops. SDKs and WebSockets are install. Hours and tokens are the meter.

Who it's for

Best fit: voice teams who will start on the API hour rates ($0.10 async / $0.12 realtime) and only open the App when they want a weekly-credit scribe at $0.

Pricing

Verified 2026-10-22 (Asia/Shanghai) from soniox.com/pricing (API) and the live soniox.com/soniox-app/pricing cards.

API (pay-as-you-go) — new API keys no longer get the old $200 free-credit grant (Oct 27, 2025 update).

STT async — $0.10/hour of audio (~$1.50 / 1M input-audio tokens).
STT realtime — $0.12/hour (~$2.00 / 1M input-audio tokens). Calculator at 1,000 hours: $120/month.
STT text tokens (custom context / output) — $3.50–$4.00 / 1M.
TTS — ~$0.70/hour of generated speech.
Translation, diarization, language ID, and smart formatting are included in the STT hour.

App

Free — $0/month. Smart Scribe, Translator, Voice Typing. Weekly free credits. Mobile / desktop / web. Online or offline record.
Pro — $19.99/month (Annual toggle on that card). Unlimited Scribe / Translator / Voice Typing. Priority processing.
Business — $30/user/month billed monthly. Seat admin. Shared workspaces. Data residency.

Confirm the App Annual toggle before you budget — this check used the monthly cards ($19.99 / $30).

Limitations / costs

New API keys have no free credit pack after October 27, 2025. The App still adds weekly credits on Free.
$0.10 / $0.12 are hours, not seats. Context tokens are extra.
$19.99 / $30 are App cards. API usage is separate.
A speech desk, not a phone-agent minute. For all-in call agents see Bland. For another STT API see Gladia.

Alternatives

Gladia — STT + translation API when you want their credit pack, not Soniox hours.
Deepgram — Nova STT when you already meter their add-ons.
AssemblyAI — speech-to-text plus audio intelligence.
Otter AI — a meeting scribe when you do not want an API.

Official tutorial

No first-party getting-started oEmbed found on this check. Use the written path.

Written path: Docs Overview plus API Pricing and App Pricing.

Website

https://soniox.com

Source

Catalog row curated for AI Tools Nav. Cover is Soniox’s official docs Overview (STT / TTS / Translation). Dollars checked on soniox.com/pricing (STT $0.10 / $0.12/hr) and soniox-app/pricing (Free $0; Pro $19.99/mo; Business $30/user/mo). No first-party getting-started oEmbed.

Last verified

2026-10-22 (Asia/Shanghai) editorial check.