OpenAI has enhanced its Responses API for long-running AI agents with three key features. The update introduces server-side compression, enabling agent sessions to last for hours without exceeding context limits. It also includes controlled internet access for OpenAI-hosted containers, allowing for library installations and script execution. The third feature is “skills,” reusable bundles of instructions, scripts, and files that agents can implement on demand. These skills serve as a middle layer between system prompts and tools, enabling developers to package extensive workflows into versioned bundles that activate only when required, delivered as ZIP files. This robust functionality supports both hosted and local containers via the API, with OpenAI advising the creation of skills similar to small command-line programs and emphasizing the importance of versioning in production environments. This innovation positions OpenAI as a leader in evolving AI capabilities for developers.
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