GPT-6 Luna

openai/gpt-6-luna

OpenAI's most efficient GPT-6 tier for focused, high-volume workloads.

Review option pricing before running.

Runs started with multiple options stay blind until you vote.

Use through the API
In / out per 1M
Official price: $0.1Sale price: $0.07Official price: $0.5Sale price: $0.3530% off
Modalities
Text, Image
Context
1.1M
Released
Sep 22, 2026

Overview

OpenAI's most efficient GPT-6 tier for focused, high-volume workloads. It is billed from the same balance as every other model and tool here, and the price of each call comes back in the response.

Run GPT-6 Luna with an agent

Each guide pairs this model with a currently compatible agent, explains their separate roles, and opens the shared Composer with both selections ready.

  • Hermes + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Codex + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • OpenClaw + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • pi + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • DeepSeek Harness + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Kimi Code + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • OpenCode + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • MiniMax Code + GPT-6 Luna

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide

Pricing

30% off

Prices in USD per million tokens, using your plan when signed in.

Each request uses the tier matching its full input context, including cached input. Output tokens do not choose the tier. Choose the row for your cache and thinking modes.

Input context (tokens)Cache modeThinkingInputOutputCache readCache write
Up to 272,000AutomaticStandardOfficial price: $0.1Sale price: $0.07Official price: $0.5Sale price: $0.35Official price: $0.01Sale price: $0.007Official price: $0.125Sale price: $0.0875
272,001–1,050,000AutomaticStandardOfficial price: $0.2Sale price: $0.14Official price: $0.75Sale price: $0.525Official price: $0.02Sale price: $0.014Official price: $0.25Sale price: $0.175

Your balance and per-call records come from /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "openai/gpt-6-luna",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions