OpenAI Developer Blog
API blog posts
Mar 11
From prompts to products: One year of Responses
Five stories from developers building agentic products with the Responses API in its first year.
API
Feb 11
Shell + Skills + Compaction: Tips for long-running agents that do real work
Practical patterns for building with skills, hosted shell, and server-side compaction in the Responses API.
API
Sep 22
Why we built the Responses API
How the Responses API unlocks persistent reasoning, hosted tools, and multimodal workflows for GPT-5.
API