How do I access GPT-5.6 Terra Pro from inside Iran?

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

Is GPT-5.6 Terra Pro compatible with OpenAI code?

Yes. Hormouz exposes an OpenAI-compatible API. Point your base URL at Hormouz and swap in your Hormouz key. Your existing SDKs and code run without a rewrite.

OpenAI: GPT-5.6 Terra Pro: AI model

GPT-5.6 Terra Pro is the pro reasoning mode of GPT-5.6 Terra from OpenAI with a 1.05M-token context window. Reachable from inside Iran through Hormouz.

Context window:: 1,050,000 tokens
Input:: $2/1M tokens
Output:: $12/1M tokens
Type:: text, image

Vision
Tools
Streaming
Long context

Thinking levels: max · xhigh · high · medium · low · none

GPT-5.6 Terra Pro runs GPT-5.6 Terra in OpenAI's pro reasoning mode. It reasons much more on each request to improve quality on complex tasks, so a typical request costs several times more and takes much longer than on GPT-5.6 Terra. It is meant for hard, high-stakes problems; for everyday coding, agents and chat, use GPT-5.6 Terra.

It accepts text, image and file (PDF) input and returns text, and supports tool calling, structured JSON output and streaming. Reasoning can be switched on when a problem needs more thought and left off when speed matters. GPT-5.6 Terra Pro is commonly used for hard reasoning, high-stakes analysis and difficult technical problems. Hormouz serves it behind an OpenAI-compatible API: point your base URL at Hormouz, drop in a Hormouz key, and existing OpenAI SDK code runs without changes.

Pricing is usage-based: $2 per million input tokens and $12 per million output tokens. There is no fixed monthly fee, and you pay only for the tokens you use. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

GPT-5.6 Terra Pro is the same underlying model as GPT-5.6 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Cost note: pro mode spends far more...

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-5.6-terra-pro",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Specs

Vendor	OpenAI
Type	Text, Image
Context window	1,050,000 tokens
Pricing	$2.00/M in · $12.00/M out
API	Chat Completions
Capabilities	Streaming · Vision · 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-5.6-terra-pro",
    "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-5.6-terra-pro",
    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-5.6-terra-pro",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the OpenAI: GPT-5.6 Terra Pro API, paid in rial

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One Hormouz key reaches OpenAI: GPT-5.6 Terra Pro 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-5.6 Terra Pro cost?: Pricing is usage-based: $2 per million input tokens and $12 per million output tokens. There is no fixed monthly fee, and you pay only for the tokens you use.
How do I access GPT-5.6 Terra Pro from inside Iran?: Create an account on Hormouz and generate an API key. Hormouz provides a stable path to the model from inside Iran, with no foreign credit card or circumvention tooling required.
Is GPT-5.6 Terra Pro compatible with OpenAI code?: Yes. Hormouz exposes an OpenAI-compatible API. Point your base URL at Hormouz and swap in your Hormouz key. Your existing SDKs and code run without a rewrite.
What context window and capabilities does GPT-5.6 Terra Pro have?: It has a 1.05M-token context window, accepts text, image and file (PDF) input, and supports tool calling, structured JSON output and streaming. Reasoning can be switched on when a problem needs more thought and left off when speed matters.
What is GPT-5.6 Terra Pro good for?: Typical uses are hard reasoning, high-stakes analysis and difficult technical problems.

Updated 2026-10-13