OpenAI

GPT-5.6 Luna Pro

openai/gpt-5.6-luna-pro

JSON

Specification

Published by the vendor; the platform bills at the target's declared price.

GPT-5.6 Luna Pro

reasoning tools

OpenAI openai/gpt-5.6-luna-pro

GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://openrouter.ai/openai/gpt-5.6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Input $/1M: $0.20
Output $/1M: $1.20
Context: 1.1M
Max output: 128K
Released: Jul 9, 2026
Modalities: fileimagetext

Cached input reads $0.02 per 1M

On this deployment

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Not routable here yet

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targets.yamlyaml

# targets.yaml - declare a target that runs GPT-5.6 Luna Pro
targets:
  - id: gpt-5-6-luna-pro
    kind: llm
    name: GPT-5.6 Luna Pro
    metadata:
      model: openai/gpt-5.6-luna-pro          # links the target to this catalogue entry
    capabilities:
      domains: [general]
      supports_tools: true
      context_window: 1050000
    cost:
      usd_per_1k_tokens: 0.000700

Price among OpenAI models

Input list price per million tokens; GPT-5.6 Luna Pro is the 3rd cheapest of 13 listed.

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