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OpenAI: GPT-5.6 Terra (batch): AI model

Context window:
1,050,000 tokens
Input:
$1/1M tokens
Output:
$6/1M tokens
Type:
text, image
  • Vision
  • Tools
  • Streaming
  • Long context

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

OpenAI: GPT-5.6 Terra (batch) is a AI model from OpenAI, available through Hormouz via an OpenAI-compatible API with stable access from inside Iran.

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...

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

Specs

VendorOpenAI
TypeText, Image
Context window1,050,000 tokens
Pricing$1.00/M in · $6.00/M out
APIChat Completions
CapabilitiesStreaming · Vision · Tools

Benchmarks

38
Intelligence Index
Better than 73% of models we compared
70.6
Coding Index
Better than 81% of models we compared
41.4
Agentic Index
Better than 82% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
90.8%
HLE
Humanity's Last Exam
41.9%
IFBench
Instruction-following
66.3%
AA-LCR
Long-context reasoning
79%
CritPt
Research-level physics reasoning
27.1%
AA Omniscience
Broad factual knowledge accuracy
45.5%
Non-Hallucination
Rate of avoiding fabricated answers
11%

Coding

SciCode
Python for scientific computing
52.3%
Terminal-Bench Hard
Agentic coding & terminal use
62.9%

Agentic

τ²-Bench
Tool-use agents in dual-control scenarios
80.4%
GDPval
Economically valuable tasks
47.5%

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-5.6-terra:batch",
    "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:batch",
    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:batch",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Buy the OpenAI: GPT-5.6 Terra (batch) API, paid in rial

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Updated 2026-10-13