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

Context window:
1,050,000 tokens
Input:
$0.1/1M tokens
Output:
$0.6/1M tokens
Type:
text, image
  • Vision
  • Tools
  • Streaming
  • Long context

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

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

GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...

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

Specs

VendorOpenAI
TypeText, Image
Context window1,050,000 tokens
Pricing$0.10/M in · $0.60/M out
APIChat Completions
CapabilitiesStreaming · Vision · Tools

Benchmarks

37.3
Intelligence Index
Better than 71% of models we compared
71.4
Coding Index
Better than 84% of models we compared
42.1
Agentic Index
Better than 83% of models we compared

Reasoning

GPQA Diamond
Graduate-level scientific reasoning
91.1%
HLE
Humanity's Last Exam
39.5%
AA-LCR
Long-context reasoning
83.7%
CritPt
Research-level physics reasoning
20.6%
AA Omniscience
Broad factual knowledge accuracy
42.7%
Non-Hallucination
Rate of avoiding fabricated answers
7.4%

Coding

SciCode
Python for scientific computing
53.6%

Agentic

GDPval
Economically valuable tasks
48.2%

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

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Updated 2026-10-13