GPT-6 Luna
The fast, low-cost tier of OpenAI's GPT-6 family, priced at 10 cents per million input tokens.
- Made by
- OpenAI
- Released
- Type
- Fast & cheap
- Status
- Live
- How to get it
- OpenAI API
- Good for
- High-volume tasksSorting and taggingQuick replies
What it is
Luna is the smallest and cheapest model in OpenAI’s GPT-6 family, released alongside GPT-6 Sol on September 22, 2026.
What it means for you
Models like this are built for jobs that run thousands of times, such as tagging support tickets or summarizing short messages, where cost and speed matter more than depth.