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OpenAI (Whisper / gpt-4o-transcribe).

Whisper-family transcription via the OpenAI API, plus newer gpt-4o transcribe models.

Directory noteRising fast; the demand line trending up in our keyword data.

OpenAI (Whisper / gpt-4o-transcribe) speech-to-text API overview

The four signals that usually narrow a speech-to-text shortlist first. Prices are the cheapest documented async tier; native billing units differ, so read the notes below.

Listed price$0.0060 / minPay-as-you-go information
Languages98+Approximate coverage
StreamingYesReal-time transcription
DiarizationYesSpeaker separation

OpenAI (Whisper / gpt-4o-transcribe) pricing, languages, and features

Everything else the directory currently tracks, kept in one clear spec sheet for comparison.

Company
OpenAI
Listed price
$0.0060 / minwhisper-1 is a genuine $0.006/min. The flagship gpt-4o-transcribe bills per audio token ($2.50/1M input, $10/1M output); ~$0.006/min is OpenAI's own estimate, not a fixed rate.
Languages
9898 is whisper-specific; gpt-4o-transcribe has no documented language total.
Real-time streaming
Yes
Speaker diarization
YesVia the dedicated gpt-4o-transcribe-diarize model.
Free tier or trial
NoNo free STT tier; pay-as-you-go from the first call.
Models
gpt-4o-transcribe, gpt-4o-transcribe-diarize, gpt-4o-mini-transcribe, whisper-1

Pricing, languages, streaming, and diarization verified against OpenAI (Whisper / gpt-4o-transcribe)’s primary sources on 2026-08-27. Word error rate and latency are not yet measured.

Official OpenAI (Whisper / gpt-4o-transcribe) website and API documentation

Confirm current pricing and capabilities in the provider’s own materials before making a purchasing decision.

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