What transcribing audio to text costs per month.
Per-minute STT APIs are convenient; open models on a GPU win at scale. Estimate the GPU side on the GPU rental calculator before switching. For the reverse see the text-to-speech calculator.
Free speech-to-text API cost calculator — audio minutes transcribed per month and per-minute price to your STT bill.
Per minute of audio processed, regardless of how many words it contains. Cost = minutes × per-minute rate. Add-ons like speaker diarisation, word timestamps and enhanced models can raise the rate.
For low volume, a hosted API is simplest and reliable. Above tens of thousands of minutes a month, running an open model such as Whisper on a rented GPU usually undercuts the per-minute price — the familiar build-vs-buy line.
Cost at different volumes:
| Volume | Monthly | Yearly |
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