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GPT-5.6 Luna Pro

OpenAI🇺🇸 USFrontier· Jul 9, 2026

TextReasoningVisionAPI

GPT-5.6 Luna Pro is the same underlying model as 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/reasoningreasoning-mode

Provider description (OpenRouter)

Context: 1.1M tokens
Price / 1M tok: $0.1 in · $0.6 out
Modalities: document, image, text → text

2 variants

Standard		1.1M	$0.2/$1.20	OR
Batch		1.1M	$0.1/$0.6	OR

Sources

OpenRouter Blog

Provenance

Detected: Sep 27, 2026
First source: openrouter
Description: Provider description (OpenRouter)
Editorially reviewed: —