The next evolution of the Agents SDK
OpenAI just shipped native sandbox execution for agents. Developers can now run long-running workflows without isolation overhead.

Why it matters
OpenAI's Agents SDK update removes a critical barrier to production agent deployment—native sandboxing and model-native harness reduce engineering friction and security surface, enabling enterprises to move beyond pilots.
The key facts
5 to knowNative sandbox execution capability added
Model-native harness introduced
Support for long-running agents
File and tool integration enabled
Focus on developer experience and security
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: OpenAI updates the Agents SDK with native sandbox execution and a model-native harness, helping developers build secure, long-running agents across files and tools.