The AI agent buyer's guide is a comprehensive resource for support leaders to evaluate and choose the right AI agent solution for their unique business needs, company values, and customer expectations. The guide emphasizes the importance of understanding the differences between traditional chatbots and modern AI agents powered by large language models (LLMs). It provides a systematic approach to cut through the noise and make an empowered decision, covering key factors such as integration requirements, cost structures, and data privacy and security. The guide also offers practical advice on how to test different AI agent options, including preparing test cases, simulating real conversation flows, challenging the guardrails, and documenting and analyzing results. Ultimately, the goal is to help support leaders choose an AI agent that truly aligns with their business needs and delivers excellent customer service.