OpenAI released the Decisions API in public beta on October 6, 2026, introducing an endpoint that returns typed answers to developer-defined questions over text and image inputs. The OpenAI API changelog records the release in beta with gpt-6-luna, served through a dedicated POST /v1/decisions endpoint. OpenAI says the new endpoint produces those answers about 10x faster than the Responses API. According to the Decisions API documentation, the API can be tested in the Playground, where…