← All providers
Speech-to-text
Deepgram vs OpenAI (STT)
Deepgram has the lower normalized list price (1.3× cheaper). 29 of 33 European languages are documented by both; 0 only by Deepgram, 1 only by OpenAI (STT).
Deepgram
$0.0048 /min
0.0048 USD/min (current promo, Nova-3 lowest listed; regular 0.0077) · source · checked 2026-10-16
29/33 languages · language/model table
Try Deepgram →OpenAI (STT)
$0.0060 /min
0.006 USD/min (gpt-4o-transcribe; realtime whisper 0.017/min) · source · checked 2026-10-16
30/33 languages · Whisper language list (shown on OpenAI TTS guide)
Try OpenAI (STT) →Only Deepgram · 0
—
Only OpenAI (STT) · 1
List prices, normalized to USD/min; see each provider page for assumptions. Language support from official docs. * = affiliate link; never affects comparisons.
Weekly · free
Get voice AI price changes in your inbox.
One short email a week. Subscribers get the full price and language dataset (CSV, 25 providers × 33 languages) in the welcome email.