OpenAI launches AgentKit to build and fine-tune AI agents
OpenAI just launched AgentKit, a full-stack toolkit designed to help developers build, deploy, and optimize AI agents. It packs a visual canvas called Agent Builder, an embeddable ChatKit UI, and expanded evaluation tools with reinforcement fine-tuning (RFT). Why it matters: Teams can now drag and drop multi-agent workflows and test them in hours instead of months.