Overview

This tutorial dives into LangChain Messages, the core unit for context exchange with LLMs. You will learn about the structure of messages, including role, content, and metadata, and see practical examples of using System, Human, and AIMessages, alongside handling multimodal inputs and tool calls in a standardized way.

Intermediate

Understanding LangChain Messages

Explore the fundamental role of Messages in LangChain for model interaction.

Published At: Mar 27, 2026

Last Updated At: Mar 27, 2026

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Author

Abhinav Verma

@abhinavv9

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