LangChain is a programming framework for using large language models (LLMs) in applications. Like everything in generative AI, things have moved incredibly fast for https://python.langchain.com/en/latest/index.html.
So what do JavaScript developers (in particular) need to know about LangChain — and indeed about working with LLMs in general?
Unsurprisingly, the main use case for LangChain currently is to build chat-based applications on top of LLMs (especially ChatGPT).
He explained that typically you have a natural language query and a language model will convert that to a SQL query.