GPT-4o Transcribe is OpenAI's speech-to-text model built on GPT-4o audio capabilities, released 2026-04. It provides high-quality transcription with token-based pricing.
Modalities
inAudiooutText
Price−70%
$0.75/ 1M in
Context
128K
Released
Apr 27, 2026
Channels
Every channel serves the same model, but they differ in price and stability. On each API key in the Platform, you pick a primary and a backup channel per vendor, and each billing line shows which channel served the request.
Provider
Discount
Input /M
Cache read /M
Codexcheap
−70%
$0.75
—
Defaultstable
−30%
$1.75
—
Quick start
POST /v1/audio/transcriptionsimport os from openai import OpenAI client = OpenAI( base_url="https://api.mirapi.ai/v1", # changed api_key=os.environ["MIRAPI_API_KEY"], # changed ) resp = client.audio.transcriptions.create( model="gpt-4o-transcribe", file=open("audio.mp3", "rb"), ) # resp.text
import fs from "node:fs"; import OpenAI from "openai"; const client = new OpenAI({ baseURL: "https://api.mirapi.ai/v1", // changed apiKey: process.env.MIRAPI_API_KEY, // changed }); const resp = await client.audio.transcriptions.create({ model: "gpt-4o-transcribe", file: fs.createReadStream("audio.mp3"), });
curl https://api.mirapi.ai/v1/audio/transcriptions \ -H "Authorization: Bearer $MIRAPI_API_KEY" \ -F "model=gpt-4o-transcribe" \ -F "file=@audio.mp3"
Links
Wire GPT-4o Transcribe into your product
Start free1M free tokens to start, no card required. It’s OpenAI-compatible, so you only change the base URL.