Breaking rest
OpenAI reusable prompt objects and the v1/prompts API shut down November 30, 2026
What changes
Announced June 3, 2026, when prompt creation was also de-emphasized in the platform. The v1/prompts API and reusable prompt objects are scheduled to shut down; Responses API requests that pass a saved prompt object (id pmpt_…) should send the prompt through input instead. OpenAI's migration path is to move the prompt content into application code.
Breaking: Calls fail after this date.
What to do
Copy each referenced prompt's content and variables into versioned code, build the messages there and pass them as input; add a test that renders each prompt locally.
Strings to search for
v1/promptspmpt_