Soniox · Pricing · Checked Nov 1, 2026
Soniox TTS v2 pricing, and the speech-to-text rate
Soniox TTS v2 costs about $0.70 per hour of generated speech, from $4.00 per 1M tokens of input text and $21.50 per 1M tokens of output audio. Speech-to-text is $0.10/hour for async files and $0.12/hour for real-time streams. The hourly TTS figure is Soniox's own wording. Checked Nov 1, 2026.
Soniox pricing at a glance
| Item | Value |
|---|---|
| TTS input text | $4.00 per 1M tokens |
| TTS output audio | $21.50 per 1M tokens |
| TTS, vendor hourly wording | about $0.70 per hour of generated speech |
| STT async | $0.10/hour |
| STT real-time | $0.12/hour |
Sources: soniox.com · Nov 1, 2026
Text to speech
TTS input text is $4.00 per 1M tokens. Output audio is $21.50 per 1M tokens. Soniox says that is about $0.70 per hour of generated speech. Dividing $0.70 by 60 is about $0.0117 per minute. That division is ours. The hourly figure is already Soniox's 'about' figure.
Speech to text
Async file transcription is $0.10/hour. Real-time streaming is $0.12/hour. The same page also lists input audio tokens at $1.50 per 1M for async and $2.00 per 1M for real-time, and says one hour of audio is about 30,000 input audio tokens.
Soniox TTS price changes
Soniox launched TTS v2, model tts-rt-v2, on Aug 11, 2026. The post states $0.70 per generated hour.
Related pricing
Deepgram publishes streaming speech-to-text per minute and a Voice Agent API rate. Cartesia Managed Agents, Inworld TTS-2, and Gemini 3.8 Flash TTS are the other voice prices next to this one.
FAQ
What is Soniox TTS pricing?
TTS is $4.00 per 1M tokens of input text and $21.50 per 1M tokens of output audio. Soniox also says that is about $0.70 per hour of generated speech. Source: https://soniox.com/pricing (checked Nov 1, 2026).
How does Soniox compare with Deepgram?
Soniox speech-to-text is $0.10/hour async and $0.12/hour real-time. Deepgram pay-as-you-go Nova-3 monolingual streaming is $0.0077/min, and the Voice Agent API Standard tier is $0.075/min. The agent rate is not an STT-only rate.
How does Soniox compare with AssemblyAI?
Soniox speech-to-text is $0.10/hour async and $0.12/hour real-time, and TTS is about $0.70 per hour of generated speech. We have not checked an AssemblyAI list price for this page, so we do not state one.
Sources
- soniox.com ·
- soniox.com ·