LangChain's observability platform — tracing, evaluation, dataset management, and prompt playground.
Five passes over the same idea, each from a different angle. Do them in order, or jump to whichever you need.
LangSmith provides end-to-end observability for LLM applications built with LangChain or any framework. Features: distributed tracing, run visualization, dataset curation, evaluation suites, prompt playground, and annotation queues. Integrates with LangGraph for agent observability.
