OpenAI Agent Builder

OpenAI deprecates reusable prompts, Evals platform, and Agent Builder

OpenAI announced the deprecation of three platform features: reusable prompt objects, the Evals platform, and Agent Builder, with shutdown timelines and migration guidance available on their deprecations page. This signals a consolidation or strategic shift in OpenAI's developer tooling and evaluation infrastructure. The removal of the Evals platform is particularly notable for practitioners who relied on it for structured model evaluation workflows.