OpenAI GPT 6 Luna Decisions
GPT 6 Luna served through OpenAI's Decisions API: it reads a state and returns typed, probabilistic answers to choice, score and yes/no questions instead of writing text.
GPT 6 Luna Decisions is a cloud decision model from OpenAI. It reads a piece of text and answers typed questions about it, such as a choice between labels, a yes or no, or a score on a scale, with a probability for every option instead of written text. It reads up to 1.05M input tokens per request. It runs through OpenRouter using your own API key, from $0.10 per million input tokens.
- Released
- Oct 2026
- Pricing
- $0.10 / 1M in · $0.00 / 1M out
- Answers
- Choice, yes/no, score
- Context window
- 1.05M in
Examples
Answered by GPT 6 Luna Decisions via OpenRouter. A decision model returns probabilities, not prose, so each card shows how sure it was about every option. The same four questions run against every Classify model in the catalog.
Hi, I was charged twice for my March subscription. Can you refund the duplicate payment before the end of the week?
Which team should handle this support ticket?
- Payments, invoices and refunds100%
- Errors or broken features in the product0%
- Login, passwords and account settings0%
- Plans, pricing questions and upgrades0%
海辺のカフェの写実的な写真、夕暮れ、35mmフィルム風
What kind of image does this prompt ask for? It can be in any language.
- A logo or brand mark0%
- A photorealistic shot100%
- Drawn, painted or stylised art0%
- Anything else0%
What is a vector database, and when would a small team need one? I'm not asking you to build anything yet.
Does this message ask the assistant to create or generate something?
- Yes: it asks for something to be made0%
- No: it asks a question or wants an explanation100%
Checkout has returned an error for every customer since 9am and we are losing orders. Please look now.
How urgent is this message?
- Can wait for the next release0%
- Should be handled this week0%
- Should be handled today0%
- Needs attention right now100%
OpenAI
OpenAI builds GPT, DALL·E, the Sora family, and the open-weight gpt-oss models, and has been a central force behind the modern wave of generative AI.
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