GPT-6 Luna Pro
OpenAI🇺🇸
openai/gpt-6-luna-proGPT-6 Luna Pro is OpenAI's GPT-6 Luna served with reasoning mode set to "pro" for higher-quality answers on harder problems, keeping the same 1.05M-token context and $0.10/$0.50 per-million input/output pricing as the base model. It suits workloads that want Luna's low cost but need more careful reasoning than the default mode, at the expense of more tokens and latency per request.
Cost rate
0.1x
Context
1.1M
Released
Sep 22, 2026
Input
FileImageText
Output
Text
Support
ReasoningTool callingStructured outputs