ToolsThe story, in brief
From model to agent: Equipping the Responses API with a computer environment
OpenAI just shipped agent runtime on the Responses API. No more waiting for agentic frameworks—it's live, stateful, and container-native.
The KeyNews take
Why it matters
OpenAI is collapsing the gap between model capability and deployed agent infrastructure. By baking agents into the Responses API with file handling, tool orchestration, and hosted compute, they're removing friction from the build-to-production path for founders and enterprises.
The key facts
6 to knowAgent runtime ships via Responses API
Includes shell tool and hosted container support
Enables stateful agent execution with file management
Native tool use and state persistence
Production-ready security and scalability built in
Live as of March 11, 2026
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: How OpenAI built an agent runtime using the Responses API, shell tool, and hosted containers to run secure, scalable agents with files, tools, and state.