LangChain has been developing a new approach to AI applications by introducing ambient agents that respond to ambient signals and require user interaction only when necessary, as opposed to the traditional chat-based user experience. These ambient agents are designed to overcome the limitations of chatbots by enabling multiple simultaneous interactions and reducing unnecessary user input, thus scaling human capabilities. The concept of human-in-the-loop is pivotal, allowing for notifications, questions, and reviews to ensure that agents act appropriately and build user trust. LangChain's LangGraph platform supports these ambient agents with features like a persistence layer, built-in human-in-the-loop support, and long-term memory, facilitating effective and reliable AI interactions. As part of this initiative, LangChain has introduced an email assistant as both a hosted service and an open-source project, showcasing the potential of ambient agents in real-world applications and providing tools for others to develop similar workflows.