# OpenAI: decisions-api

> OpenAI's decision endpoint, announced at DevDay 2026. It focuses GPT-6 Luna on developer-defined questions that have a finite set of predefined answers, with text or image context, for classification, routing and an agent's next action.

- Page: https://systemonemodels.tech/openai/decisions-api
- API: https://api.systemonemodels.tech/v1/models/openai/decisions-api

## Facts

| | |
|---|---|
| Maker | OpenAI (https://systemonemodels.tech/openai) |
| Decides | choice, classify, route |
| Architecture | gpt-6-luna |
| Licence | proprietary |
| Availability | Hosted API |
| Released | 2026-09-29 |
| Latest version | 2026.09 |

## Hosted API

- Provider: OpenAI (https://openai.com/index/devday-2026-recap/)

- Input: — · Output: —

## Model card

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# Decisions API (GPT-6 Luna)

OpenAI's decision endpoint, announced at DevDay 2026. It focuses GPT-6 Luna on developer-defined questions that have a finite set of predefined answers, with text or image context, for classification, routing and an agent's next action.

In limited preview since 29 September 2026, with a broad release promised within days. OpenAI's announcement gives no pricing, documentation, probability format or benchmark numbers, and does not say whether yes/no and rubric-score questions are separate types; the tenfold speed-up quoted in the press is not on OpenAI's page. Re-check the docs at general availability before adding prices or capabilities.

## What it decides

- **choice** — picks one option from a set
- **classify** — assigns a category from a fixed taxonomy
- **route** — sends the input to one of several destinations

## At a glance

| | |
|---|---|
| Maker | OpenAI |
| Released | 2026-09-29 |
| License | proprietary |

## Hosted API

Served by **OpenAI**. [Get access](https://openai.com/index/devday-2026-recap/).

## Read more

- [DevDay 2026 recap](https://openai.com/index/devday-2026-recap/)

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