Microsoft Azure Speech vs Inworld pricing
STT: Microsoft Azure Speech from $0.003 vs Inworld from $0.0025; TTS: Microsoft Azure Speech from $15.00 vs Inworld from $15.00.
Last updated · prices checked daily
Speech-to-text: Microsoft Azure Speech vs Inworld
Inworld has the lower listed STT price: $0.0025 per minute (STT 1 (On-Demand)) vs $0.003 for Microsoft Azure Speech (Standard batch transcription), about 17% less.
| Vendor | Product / tier | $/min |
|---|---|---|
| Inworld Visit site ↗ | STT 1 (On-Demand) | $0.0025 |
| Microsoft Azure Speech Visit site ↗ | Standard batch transcription | $0.003 |
| Microsoft Azure Speech Visit site ↗ | Standard real-time transcription | $0.0167 |
What it costs at volume (lowest listed rate)
| Minutes | Microsoft Azure Speech | Inworld |
|---|---|---|
| 1,000 min | $3.00 | $2.50 |
| 10,000 min | $30.00 | $25.00 |
| 100,000 min | $300.00 | $250.00 |
Text-to-speech: Microsoft Azure Speech vs Inworld
Both list the same lowest TTS price: $15.00 per 1M characters.
| Vendor | Product / tier | $/1M chars |
|---|---|---|
| Microsoft Azure Speech Visit site ↗ | Neural / Neural HD Flash | $15.00 |
| Inworld Visit site ↗ | TTS-2 Flash (On-Demand) | $15.00 |
| Inworld Visit site ↗ | TTS-2 (On-Demand) | $25.00 |
What it costs at volume (lowest listed rate)
| Characters | Microsoft Azure Speech | Inworld |
|---|---|---|
| 1M chars | $15.00 | $15.00 |
| 10M chars | $150.00 | $150.00 |
| 100M chars | $1,500.00 | $1,500.00 |
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 Inworld cheaper for speech-to-text?
Inworld has the lower listed STT price: $0.0025 per minute (STT 1 (On-Demand)) vs $0.003 for Microsoft Azure Speech (Standard batch transcription), about 17% less. Prices checked Oct 28, 2026.
Is Microsoft Azure Speech or Inworld cheaper for text-to-speech?
Both list the same lowest TTS price: $15.00 per 1M characters. 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.