How much does GPT-6 Luna Decisions cost?

On the Respan gateway, GPT-6 Luna Decisions costs $0.10 per 1M input tokens and $0.00 per 1M output tokens on OpenRouter, after gateway discounts.

Which providers serve GPT-6 Luna Decisions on Respan?

GPT-6 Luna Decisions is served by OpenRouter.

What is GPT-6 Luna Decisions's context window?

GPT-6 Luna Decisions accepts up to 1.1M tokens of context.

How do I use GPT-6 Luna Decisions with the Respan gateway?

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "gpt-6-luna-decisions". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

GPT-6 Luna Decisions

Q: What is GPT-6 Luna Decisions?

GPT-6 Luna Decisions is a model from OpenAI, released on Oct 6, 2026. GPT-6 Luna Decisions is GPT-6 Luna served through OpenAI's Decisions API. Instead of generating text, it reads the content passed as `state` (text, JSON, or images) and returns typed, probabilistic answers to named questions in a single request: the probability of yes for a yes/no question (`noul`), a probability for every option plus the most likely one (`choice`), or a probability for every level of an ordered rubric plus the expected score (`score`). It is built for classification, routing, moderation, and rubric grading where application code thresholds the returned numbers rather than parsing a chat reply. A request can carry up to 200 questions about the same content.

GPT-6 Luna Decisions is GPT-6 Luna served through OpenAI's Decisions API. Instead of generating text, it reads the content passed as `state` (text, JSON, or images) and returns typed, probabilistic answers to named questions in a single request: the probability of yes for a yes/no question (`noul`), a probability for every option plus the most likely one (`choice`), or a probability for every level of an ordered rubric plus the expected score (`score`). It is built for classification, routing, moderation, and rubric grading where application code thresholds the returned numbers rather than parsing a chat reply. A request can carry up to 200 questions about the same content.

Input / output price: $0.10 / $0.00 per 1M
Context: 1.1M tokens
Released: Oct 6, 2026

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "gpt-6-luna-decisions".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="gpt-6-luna-decisions",

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

)

print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "gpt-6-luna-decisions",

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

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "gpt-6-luna-decisions",

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

}'

Read docs

Providers

One provider serves this model, priced per 1M tokens after gateway discounts.

Provider	Context	Input	Output	Cache read	Capabilities
OpenRouter`openrouter/openai/gpt-6-luna-decisions`	1.1M	$0.10/M	$0.00/M	$0.00/M

Is a provider down? OpenRouter status

Pricing

USD per 1M tokens on OpenRouter, after gateway discounts.

Input: $0.10 per 1M
Output: $0.00 per 1M

Cost by volume

Total cost from 0 to 1T tokens.

$0.10/MOpenRouter

Apps

Use GPT-6 Luna Decisions in the tools you already run. Each guide points the app at the Respan gateway.

Setup guides for more apps are in the integration docs.