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...
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1,050,000
tokens
$0.1
per 1M tokens
$0.6
per 1M tokens
Model capabilities and supported modalities
Excellent reasoning capabilities with strong logical analysis
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Calculate the cost of using this model
Based on different usage levels