What is Langchain

This is a framework for developing applications powered by large language models (LLMs).
LangChain implements a standard interface for large language models.
You can select any LLM(openAI, Grok, Antrhopic, Azure, Perplexity, etc.) and use it with LangChain.
Stage Use
Development LangChain's open-source components and third-party integrations
LangGraph to build stateful agents
Inspect, Monitor, Evaluate Langsmith
Deployment LangGraph Platform