Decisions API is an independent browser playground and developer service for answering closed questions about text or images. Users define the permitted answers, submit a context and inspect a selected decision with probabilities for the available options.

The interface supports choice, yes/no and ordered-score questions. Public examples cover receipt classification, ticket routing, image review and agent tool selection, with API request examples for integrating the same pattern into an application. The current workspace names GPT-6 Luna as its model.

Eligible accounts receive introductory runs, while further use follows current credit and input-token pricing. Review the selected route, input limits and rate before submitting. A probability is a model estimate rather than a guarantee that an output is true, safe or appropriate. Validate on representative examples, retain evidence where needed and route uncertain cases for review. The website provides its own playground, accounts and API access, separately from the official model-provider website.