Microsoft Azure Speech vs Rev AI pricing
STT: Microsoft Azure Speech from $0.003 vs Rev AI from $0.0033.
Last updated · prices checked daily
Speech-to-text: Microsoft Azure Speech vs Rev AI
Microsoft Azure Speech has the lower listed STT price: $0.003 per minute (Standard batch transcription) vs $0.0033 for Rev AI (Reverb (English)), about 10% less.
| Vendor | Product / tier | $/min |
|---|---|---|
| Microsoft Azure Speech Visit site ↗ | Standard batch transcription | $0.003 |
| Rev AI Visit site ↗ | Reverb (English) | $0.0033 |
| Rev AI Visit site ↗ | Whisper Large | $0.005 |
| Microsoft Azure Speech Visit site ↗ | Standard real-time transcription | $0.0167 |
What it costs at volume (lowest listed rate)
| Minutes | Microsoft Azure Speech | Rev AI |
|---|---|---|
| 1,000 min | $3.00 | $3.33 |
| 10,000 min | $30.00 | $33.33 |
| 100,000 min | $300.00 | $333.30 |
Cost-per-call calculator
Estimate what one call really costs. Prices come from today's table; LLM and telephony presets are per-minute rates published by Retell and Vapi. Everything is editable.
Cartesia's pricing page puts one minute of speech at 750–800 characters; Rime says about 1,000. The talk share is your own guess at how much of each call the agent is speaking.
FAQ
Is Microsoft Azure Speech or Rev AI cheaper for speech-to-text?
Microsoft Azure Speech has the lower listed STT price: $0.003 per minute (Standard batch transcription) vs $0.0033 for Rev AI (Reverb (English)), about 10% less. Prices checked Oct 28, 2026.
How often are these prices updated?
Every day. A script reads each vendor's public pricing page, extracts the listed rates and keeps a dated copy, so price changes show up in the history.