How much does GPT Audio cost?

Billing is usage-based: $2.5/M in · $10/M out (text), with separate audio input and output token rates. There is no fixed monthly fee. You pay only for what you use, and current rates are shown in the Hormouz dashboard.

How do I access GPT Audio from inside Iran?

Create an account on Hormouz and generate an API key. Hormouz provides a stable path to GPT Audio from inside Iran, with no foreign credit card or circumvention tooling required.

What is GPT Audio good for?

GPT Audio works well for voice assistants, spoken-response apps and audio-in / audio-out conversational experiences.

OpenAI: GPT Audio: AI model

GPT Audio is an OpenAI audio model for natural-sounding speech, callable with a drop-in OpenAI speech API. From inside Iran through Hormouz.

Context window:: 128,000 tokens
Input:: $2.5/1M tokens
Output:: $10/1M tokens
Type:: text, audio

Tools
Streaming
Long context

GPT Audio is OpenAI's first generally available audio model, for natural-sounding speech. GPT Audio is OpenAI's first generally available audio model. This snapshot uses an upgraded decoder for more natural-sounding voices and better voice consistency. Audio input is priced at $32 per million tokens and audio output at $64 per million tokens.

GPT Audio is served through Hormouz behind an OpenAI-compatible speech API: send text (and options such as a voice) and receive audio bytes back. Point your base URL at Hormouz and drop in a Hormouz key to call it from your existing code.

Pricing is usage-based ($2.5/M in · $10/M out (text)), plus separate audio-token rates. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...

Quickstart

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-audio",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	OpenAI
Type	Text, Audio
Context window	128,000 tokens
Pricing	$2.50/M in · $10.00/M out
API	Chat Completions
Capabilities	Streaming · Tools

Code example

cURL

curl https://api.hormouz.net/v1/chat/completions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-audio",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Python

from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
    model="openai/gpt-audio",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
  model: "openai/gpt-audio",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the OpenAI: GPT Audio API, paid in rial

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One Hormouz key reaches OpenAI: GPT Audio and 600+ other models, and you pay only for what you use.
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FAQ

How much does GPT Audio cost?: Billing is usage-based: $2.5/M in · $10/M out (text), with separate audio input and output token rates. There is no fixed monthly fee. You pay only for what you use, and current rates are shown in the Hormouz dashboard.
How do I access GPT Audio from inside Iran?: Create an account on Hormouz and generate an API key. Hormouz provides a stable path to GPT Audio from inside Iran, with no foreign credit card or circumvention tooling required.
How do I call GPT Audio?: Use the OpenAI-compatible speech endpoint: send your text and a voice, and receive audio bytes back. Point your base URL at Hormouz and use a Hormouz key. Existing OpenAI SDK speech code works unchanged.
What is GPT Audio good for?: GPT Audio works well for voice assistants, spoken-response apps and audio-in / audio-out conversational experiences.

Updated 2026-10-13