How much does GPT-4o (2024-05-13) cost?

Billing is usage-based: $5/M in · $15/M out. There is no fixed monthly fee. You pay only for what you use.

How do I use GPT-4o (2024-05-13) 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.

Is GPT-4o (2024-05-13) OpenAI-compatible?

Yes. Hormouz serves an OpenAI-compatible API. Point your base URL at Hormouz and swap in a Hormouz key; your existing SDKs and code work without a rewrite.

Why use the pinned GPT-4o (2024-05-13) snapshot?

This version is pinned to a specific date so model behavior stays constant over time. Useful for production workloads that need reproducible output.

What inputs does GPT-4o (2024-05-13) accept?

It is multimodal: it accepts text, image and file input and produces text output.

How large is GPT-4o (2024-05-13)'s context window?

The context window is up to 128K tokens, and the model supports tool calling.

OpenAI: GPT-4o (2024-05-13): AI model

GPT-4o (2024-05-13) is OpenAI's multimodal model with text, image and file input, text output and a 128K-token context window. Reachable from inside Iran through Hormouz.

Context window:: 128,000 tokens
Input:: $5/1M tokens
Output:: $15/1M tokens
Type:: text, image

Vision
Tools
Streaming
Long context

GPT-4o ("o" for "omni") is a multimodal OpenAI model that accepts text and image input and returns text output. This snapshot, pinned to 2024-05-13, gives stable, reproducible behavior for production use.

It maintains the intelligence of the prior generation while being faster and more cost-effective, with improved handling of non-English languages and enhanced visual capabilities. The 128K-token context window, tool calling and file support make it a fit for assistants and multimodal pipelines. Hormouz exposes an OpenAI-compatible API. Point your base URL at Hormouz, drop in a Hormouz key, and existing OpenAI SDK code runs unchanged.

Pricing is usage-based: $5/M in · $15/M out. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of GPT-4 Turbo while being twice as...

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-4o-2024-05-13",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	OpenAI
Type	Text, Image
Context window	128,000 tokens
Pricing	$5.00/M in · $15.00/M out
API	Chat Completions
Capabilities	Streaming · Vision · Tools

Benchmarks

24.2

Coding Index

Better than 26% of models we compared

Reasoning

GPQA Diamond

Graduate-level scientific reasoning

52.6%

HLE

Humanity's Last Exam

1.8%

Source: Artificial Analysis

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-4o-2024-05-13",
    "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-4o-2024-05-13",
    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-4o-2024-05-13",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the OpenAI: GPT-4o (2024-05-13) API, paid in rial

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One Hormouz key reaches OpenAI: GPT-4o (2024-05-13) and 600+ other models, and you pay only for what you use.
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FAQ

How much does GPT-4o (2024-05-13) cost?: Billing is usage-based: $5/M in · $15/M out. There is no fixed monthly fee. You pay only for what you use.
How do I use GPT-4o (2024-05-13) 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.
Is GPT-4o (2024-05-13) OpenAI-compatible?: Yes. Hormouz serves an OpenAI-compatible API. Point your base URL at Hormouz and swap in a Hormouz key; your existing SDKs and code work without a rewrite.
Why use the pinned GPT-4o (2024-05-13) snapshot?: This version is pinned to a specific date so model behavior stays constant over time. Useful for production workloads that need reproducible output.
What inputs does GPT-4o (2024-05-13) accept?: It is multimodal: it accepts text, image and file input and produces text output.
How large is GPT-4o (2024-05-13)'s context window?: The context window is up to 128K tokens, and the model supports tool calling.

Updated 2026-10-13