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
by Openai|1M context|$1.00/M input tokens|$6.00/M output tokens
Endpoints
Available providers for this model, with details on pricing, context limits, and real-time health metrics.
