Summary: OpenAI launches AgentKit for building AI agents

Why It Matters: This change makes it much easier for companies to build and manage complex AI agents. It moves OpenAI from just providing models to providing a full platform for visual workflow design and testing.

What Changed:

• Launched AgentKit, a new suite of tools for developers to build and deploy agents.
• Added Agent Builder, a visual drag-and-drop canvas for creating multi-agent workflows.
• Introduced ChatKit for embedding customizable chat interfaces into apps and websites.
• Created a Connector Registry to manage data connections like Google Drive and Microsoft Teams in one place.
• Expanded Evals with new features like datasets, trace grading, and support for testing third-party models.
• Released Reinforcement Fine-Tuning (RFT) for o4-mini and private beta for GPT-5.