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 pageSoniox vs Speechmatics
Our take
Pick Soniox if you're on a voice team 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. Pick Speechmatics if you're on a voice-agent and compliance team who will spend the $100 credits and then pay $/hr. Skip Speechmatics if you're people who want a VO file (Listnr) or MIT local STT (OpenAI Whisper).
Best for
Soniox Realtime speech you meter in hours or tokens
Speechmatics Batch or realtime STT with a public $/hr
Free plan
Soniox $0 · /month. Smart Scribe, Translator, Voice Typing. Weekly free credits. Mobile / desktop / web. Online or offline record
Speechmatics No free plan
Lowest paid
Soniox STT text tokens $3.50
Speechmatics TTS $0.011
Next step up
Soniox Pro $19.99/mo
Speechmatics Melia 1 $0.24
Coding agent
Soniox
Speechmatics Linden 1
Watch out
Soniox New API keys have no free credit pack
Speechmatics $100 credits expire in 12 months
Last checked
Soniox 2026-10-22 · soniox.com/pricing
Speechmatics 2026-10-27 · speechmatics.com/pricing
Which one, then?
Pick Speechmatics if
voice-agent and compliance teams who will spend the $100 credits and then pay $/hr.
Read the Speechmatics page