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OpenAI · Audio

Whisper Large v3 API pricing

openai/whisper-large-v3

Speech-to-text. Whisper Large v3 by OpenAI, routed through INFRO on a OpenAI account you connect — alongside every other provider you run. OpenAI bills you for it directly, on that account and at your own rate. INFRO adds routing, failover, request logs, cost attribution and policy around it, and takes no part of what you pay OpenAI.

Pricing

Per audio hourUSD · updated 2026-10-05

OpenAI rate

$0.09

per audio hour, billed to you by OpenAI

INFRO adds

$0

0% markup on model spend

Calling Whisper Large v3

POST /v1/audio/speech
import os
from infro import Infro

client = Infro(api_key=os.environ["INFRO_API_KEY"])

transcript = client.audio.transcriptions.create(
    model="openai/whisper-large-v3",
    file=open("meeting.mp3", "rb"),
)

What this modality supports

  • Text to speech
  • Music generation
  • Transcription
  • Diarization

Text-to-speech with streaming playback, full-track music generation, and transcription with timestamps and diarization. Billed per character generated, per track, and per hour transcribed.

QuickstartGet a key

Alternatives for speech-to-text

Same modality, nearest in price. All of them share the request shape above, so comparing them is a one-word change.

Work out what Whisper Large v3 would cost you

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