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AI Summary
- OpenAI released Operator and Deep Research agents in first 2 months of 2025, now bringing agent capabilities to API via Responses API, Web Search, Computer Use, and File Search tools
- Responses API positioned as more flexible foundation than Assistants API (needing redesign), superset of chat completion API as suggested starting point for agentic applications
- New open source Agents SDK ships with integrated observability tools enabling developers to build agentic applications with built-in monitoring and control capabilities