What is Langchain

This is a framework for developing Agents which talk to large language models (LLMs)
With Agent developed in Langchain we can talk to any LLM(openAI, Grok, Antrhopic, Azure, Perplexity, etc.)
Stage Use
Development LangChain's open-source components and third-party integrations
LangGraph to build stateful agents
Inspect, Monitor, Evaluate Langsmith
Deployment LangGraph Platform