How do I use GPT Transcribe from inside Iran?

Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.

How do I call GPT Transcribe?

Hormouz serves GPT Transcribe on two endpoints. The OpenAI-compatible POST /v1/audio/transcriptions takes the file as the multipart field "file", or as JSON input_audio with base64 data and format, and returns {text, usage} in the same response. POST /v1/predictions handles long recordings in the background: input.audio is an https URL or a data: URI, input.language is optional. Code written for OpenAI's SDK works by changing only the base URL.

How does GPT Transcribe differ from GPT-4o Transcribe?

Both are OpenAI transcription models and both gave accurate Persian transcripts in our tests. The difference is billing: GPT Transcribe is billed per minute of audio, while GPT-4o Transcribe is billed per token.

OpenAI: GPT Transcribe: audio model

GPT Transcribe is OpenAI's high-accuracy speech-to-text model for recorded audio, billed per minute. Reachable from inside Iran through Hormouz.

Pricing:: $0.0045/minute of audio
Type:: audio

Audio

GPT Transcribe is a high-accuracy speech-to-text model from OpenAI. It is built for recorded audio and file transcription, and accepts free-form context and keyword hints.

Hormouz serves GPT Transcribe on two endpoints: the OpenAI-compatible /v1/audio/transcriptions, which returns the text in the same response, and /v1/predictions for long recordings processed in the background. In our tests on Persian speech it produced an accurate transcript.

Billing is per minute of audio; the current rate is in the price table on this page, and you pay only for what you use. Hormouz provides stable access to it from inside Iran, with no foreign credit card or circumvention tooling required.

GPT Transcribe is a high-accuracy speech-to-text model from OpenAI. It is suited for recorded audio, streamed file transcription, and committed Realtime turns, with free-form context, keyword hints, and multiple language...

Quickstart

curl https://api.hormouz.net/v1/audio/transcriptions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -F model=openai/gpt-transcribe \
  -F file=@audio.mp3

Specs

Vendor	OpenAI
Type	Audio
Context window	—
Pricing	$0.0045/minute of audio
API	transcriptions

Code example

cURL

curl https://api.hormouz.net/v1/audio/transcriptions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -F model=openai/gpt-transcribe \
  -F file=@audio.mp3

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
with open("audio.mp3", "rb") as f:
    tr = client.audio.transcriptions.create(model="openai/gpt-transcribe", file=f)
print(tr.text)

JavaScript

import OpenAI from "openai";
import fs from "node:fs";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const tr = await client.audio.transcriptions.create({
  model: "openai/gpt-transcribe",
  file: fs.createReadStream("audio.mp3"),
});
console.log(tr.text);

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FAQ

How much does GPT Transcribe cost?: Billing is per minute of audio; the current rate is in the price table on this page, and you pay only for what you use.
How do I use GPT Transcribe from inside Iran?: Create a Hormouz account and generate an API key. Hormouz gives you a stable route to the model from inside Iran, with no foreign credit card or circumvention tooling needed.
How do I call GPT Transcribe?: Hormouz serves GPT Transcribe on two endpoints. The OpenAI-compatible POST /v1/audio/transcriptions takes the file as the multipart field "file", or as JSON input_audio with base64 data and format, and returns {text, usage} in the same response. POST /v1/predictions handles long recordings in the background: input.audio is an https URL or a data: URI, input.language is optional. Code written for OpenAI's SDK works by changing only the base URL.
How does GPT Transcribe differ from GPT-4o Transcribe?: Both are OpenAI transcription models and both gave accurate Persian transcripts in our tests. The difference is billing: GPT Transcribe is billed per minute of audio, while GPT-4o Transcribe is billed per token.

Updated 2026-10-13