From model to agent: Equipping the Responses API with a computer environment

OpenAI Blog · 4 months ago

OpenAI built an agent runtime that extends its Responses API with shell tools and hosted containers to enable agents to execute tasks with file access, tool integration, and persistent state. The system uses sandboxed environments that can run code securely while maintaining state across multiple interactions. This allows developers to create agents that perform multi-step operations without rebuilding context for each step.