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System One

The developer platform for System One models. Find, compare, pull, fine-tune and publish models that return decisions.

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ORGANIZATION

OpenAI

@openai

Announced the Decisions API, a GPT-6 Luna endpoint that picks among developer-defined answers, at DevDay 2026.

openai.com Joined September 2026

1model

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System One lists OpenAI’s public models here, with their original licences, until someone from OpenAI runs this page. It is not OpenAI’s own account.

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Models 1 Builds 0

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.

choiceclassifyroutegpt-6-lunaproprietary Hosted API

0 02 hours ago