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OpenAI: GPT-4: AI model

GPT-4 is an OpenAI model. A large-scale model for difficult reasoning and general knowledge tasks, with up to 8K-token context. Reachable from inside Iran through Hormouz.

Context window:
8,191 tokens
Input:
$30/1M tokens
Output:
$60/1M tokens
Type:
text
  • Tools
  • Streaming

GPT-4 is a large-scale model for difficult reasoning and general knowledge tasks. The original GPT-4 raised accuracy on hard problems over the GPT-3.5 line thanks to broader knowledge and stronger reasoning. It supports a context window of up to 8K tokens, with training data through Sep 2021.

GPT-4 is served through Hormouz behind an OpenAI-compatible API. It supports tool calling. Point your base URL at Hormouz and drop in a Hormouz key, and existing OpenAI SDK code runs unchanged.

Pricing is usage-based: $30 per million input tokens and $60 per million output tokens. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...

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

Specs

VendorOpenAI
TypeText
Context window8,191 tokens
Pricing$30.00/M in · $60.00/M out
APIChat Completions
CapabilitiesStreaming · Tools

Benchmarks

13.1
Coding Index
Better than 10% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
34.9%
IFBench
Instruction-following
33.2%
AA Omniscience
Broad factual knowledge accuracy
21%
Non-Hallucination
Rate of avoiding fabricated answers
30.6%

Agentic

GDPval
Economically valuable tasks
0%

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

Buy the OpenAI: GPT-4 API, paid in rial

  • Buy credit with an Iranian bank card; no foreign card or account needed.
  • One Hormouz key reaches OpenAI: GPT-4 and 600+ other models, and you pay only for what you use.
  • No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
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FAQ

How much does GPT-4 cost?
Billing is usage-based: $30 per million input tokens and $60 per million output tokens. 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-4 from inside Iran?
Create an account on Hormouz and generate an API key. Hormouz provides a stable path to GPT-4 from inside Iran, with no foreign credit card or circumvention tooling required.
Is GPT-4 compatible with OpenAI code?
Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key. Your existing SDKs and chat-completions code run without a rewrite.
What context window and capabilities does GPT-4 have?
GPT-4 supports a context window of up to 8K tokens. It also supports tool calling. That makes it a good fit for long documents, codebases and multi-turn conversations.
What is GPT-4 good for?
GPT-4 works well for chat assistants, content generation, summarization, drafting and general text tasks.
What is GPT-4's knowledge cutoff?
GPT-4's training data runs through Sep 2021. For information newer than that, provide the relevant context in your prompt or connect a tool that fetches live data.

Updated 2026-10-13