GPT-5.6 Luna Pro (batch)

OpenAI · released 9 Jul 2026

Input$0.1per 1M tokens

Output$0.6per 1M tokens

Context1,050Ktokens

WeightsClosed

context on a 1K–2M scale

About

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. **Cost note:** pro mode spends far more...

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 1,050Kopenrouter.ai · 3 Oct 2026
Input price: $0.1 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $0.6 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 128,000 tokensopenrouter.ai · 3 Oct 2026
Inputs: file, image, textopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/openai/gpt-5.6-luna-pro:batch· checked 3 Oct 2026