Deprecation notice: Prompt Objects in the API will be shut down on November 30th, 2026
OpenAI Developer Community
June 5, 2026
IMHO: Nothing lost.
An attempt to force you into a UI to make a prompt as a reusable undiscoverable incomplete request shape that requires knowledge of it for success anyway.
Developed as playground-UI-only simply to increase the friction of simulating a “GPT” for a user on demand?
How to use the API like a normal person:
developers.openai.com
Migrate from prompt objects | OpenAI API
Learn how to migrate from reusable prompt objects to versioned prompts in your application code.
Discussion in the ATmosphere