Pick Deepgram if
voice-app and contact-center engineers who will read a $/minute row and ship an API key.
Read the Deepgram pageDeepgram vs Soniox
Our take
Pick Deepgram if voice-app and contact-center engineers who will read a $/minute row and ship an API key. Pick Soniox if 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. Skip Deepgram if people who want a local transcribe CLI (OpenAI Whisper) with no vendor bill.
Deepgram
**speech API
Best for
Deepgram Streaming or pre-recorded STT billed per minute
Soniox Realtime speech you meter in hours or tokens
Free plan
Deepgram No free plan
Soniox $0 · /month. Smart Scribe, Translator, Voice Typing. Weekly free credits. Mobile / desktop / web. Online or offline record
Lowest paid
Deepgram Growth $4/yr
Soniox STT text tokens $3.50
Next step up
Deepgram
Soniox Pro $19.99/mo
Coding agent
Deepgram Nova-3 STT
Soniox
Watch out
Deepgram Streaming is metered while the socket is open
Soniox New API keys have no free credit pack
Last checked
Deepgram 2026-10-20 · deepgram.com/pricing
Soniox 2026-10-22 · soniox.com/pricing
Which one, then?
Pick Soniox if
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.
Read the Soniox page