Vizient, a leader in healthcare performance improvement, is revolutionizing how healthcare providers access and analyze data with its GenAI platform. The platform empowers systems of all sizes to query and unify siloed datasets, driving better decisions in supply chain management and clinical outcomes. Vizient's multi-agent system was previously challenging to coordinate, but using LangGraph has greatly improved reliability by providing a graph structure and fully descriptive primitives. Additionally, LangSmith is used for observability and prompt management, enabling the team to quickly pinpoint issues and iterate on prompts with ease. As Vizient continues to expand its platform, it is focused on refining evaluations to ensure output consistency and trust, with initiatives including evaluating consistency across data domains and rapid data onboarding. With LangGraph and LangSmith as foundational technologies, Vizient is poised to continue raising the bar for healthcare performance improvement.