GPT-6 Luna Decisions
Notable release: A meaningful new model: a new size or version, or a strong free-to-download model from a known lab.
OpenAI's Decisions API lets developers get structured, fixed-format answers from its GPT-6 Luna model to build more responsive apps.
Key facts
- Released
- Sep 22, 2026
- What it does
- Text and chat: Writes, answers questions and holds a conversation.
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- How
- For developers, through an API
- Announced as
- “Build more responsive apps with the Decisions API”
From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).
Compare GPT-6 Luna Decisions with
It came out 19 days after GPT-6 Astra, the lab's previous model.
The details
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