LangGraph Platform, now renamed LangSmith Deployment as of October 2025, is a newly available infrastructure and management layer designed to streamline the deployment and scaling of long-running, stateful agents. Since its beta phase, it has been adopted by nearly 400 companies, offering features like one-click deployment, horizontal scaling, and a persistence layer for robust agent management. The platform addresses the unique challenges of agent deployment, such as handling asynchronous collaboration and bursty traffic, by providing tools like LangGraph Studio for real-time debugging and iteration. It enables centralized management across organizations with features like role-based access control and the ability to reuse common agent architectures. LangGraph Platform reduces the time to production and enhances developer experience through a choice of deployment options, including cloud, hybrid, and fully self-hosted models, making it a versatile solution for building and managing complex agent workflows across various industries.