gpt-5.6-luna

Name: gpt-5.6-luna
Author: OpenAI

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, providin

Starting atSave 10%

Input

$0.1842/ 1M

~~$0.2057~~

Output

$1.1053/ 1M

~~$1.2343~~

Open dashboard

Available from 2 channels

Each channel is compared at its lowest input-price tier; output breaks ties. A dash means /api/pricing does not provide that rate. Selecting a channel updates the endpoints and call example below.

ChannelUSD per 1M tokensInputOutputCache readCache write

jd/gpt-5.6-luna

Lowest input

Input

$0.1842

Output

$1.1053

Cache read

$0.0184

Cache write

$0.2302

openai/gpt-5.6-luna

Input

$0.20

Output

$1.20

Cache read

$0.02

Cache write

$0.25

Endpoints

POST/v1/chat/completionsChat Completions

Call it

Using jd/gpt-5.6-luna

1from openai import OpenAI23client = OpenAI(4    base_url="https://www.realrelay.ai/v1",5    api_key="sk-***",6)78response = client.chat.completions.create(9    model="jd/gpt-5.6-luna",10    messages=[{"role": "user", "content": "Hello"}],11)1213print(response.choices[0].message.content)

1import OpenAI from "openai";23const client = new OpenAI({4  baseURL: "https://www.realrelay.ai/v1",5  apiKey: process.env.REALRELAY_API_KEY,6});78const response = await client.chat.completions.create({9  model: "jd/gpt-5.6-luna",10  messages: [{ role: "user", content: "Hello" }],11});1213console.log(response.choices[0].message.content);

1curl https://www.realrelay.ai/v1/chat/completions \2  -H "Authorization: Bearer $REALRELAY_API_KEY" \3  -H "Content-Type: application/json" \4  -d '{5    "model": "jd/gpt-5.6-luna",6    "messages": [{ "role": "user", "content": "Hello" }]7  }'

Prices and availability as published on Oct 4, 2026.

Capabilities

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Input

TextImage

Output

Text