LangChain provides a comprehensive platform for developing, orchestrating, and deploying AI agents and large language model (LLM) applications. Key products include:
- LangGraph: For controllable agent orchestration with built-in persistence, handling conversational history, memory, and agent-to-agent collaboration.
- LangChain: Offers integrations with the latest models, databases, and tools, reducing engineering overhead.
- LangSmith: Provides evals and observability for debugging, evaluating, and monitoring agent performance at scale.
- LangGraph Platform: Enables deployment and scaling of enterprise-grade agents with features like human-in-the-loop and LangGraph Studio for visual development.
Use cases include building copilots, enterprise GPT systems, customer support automation, research assistance, code generation, and AI search. It targets developers and engineering teams, from startups to global enterprises, aiming to accelerate development, ensure reliability, and improve visibility in AI applications.

