Chat Models, Messages, and Prompt Templates in LangChain

LangChain provides a framework for developers to swiftly create LLM-powered applications. It streamlines development by providing easy access to different language models from various providers. This allows developers to quickly experiment, select the best model for their needs, and focus on building application logic, rather than wrestling with different model APIs.

In this lesson, we’ll look into how we can utilize different models in LangChain and efficiently prompt these models to ask queries and get a response accordingly.

Chat Models

A model, or chat model in the context of LangChain, is any LLM that can be used for various language-related tasks. These tasks can range from text generation or summarization to simple question answering or language translation.