What Is OpenAI's Decisions API? (vercel.com)

OpenAI has announced its Decisions API, powered by GPT-6 Luna, during the DevDay event on September 29, 2026. This new tool is designed to facilitate decision-making processes within applications by allowing developers to pose questions with predefined choices. With capabilities to process both text and image inputs, the Decisions API can classify content, route support requests, or determine the next action for an agent, making it particularly useful for applications such as customer support ticket management and document classification. The significance of the Decisions API lies in its structured approach to decision-making, distinguishing it from previous models like Structured Outputs. By providing a predefined list of possible answers, developers can optimize workflows and ensure more accurate routing of requests, although the model’s effectiveness will depend on thoughtful design and adequate data input. However, the API is in limited preview, and there are considerations regarding the completeness of choices and the need for supplementary context to make informed decisions. This innovative tool holds the potential to streamline applications requiring quick, accurate categorizations and actions, significantly enhancing productivity in the AI/ML landscape.