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LangGraph: Multi-Agent Workflows

2024-01-23 People & Blogs
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Description

LangGraph makes it easy to construct multi-agent workflows, where each agent is a node, and the edges define how they communicate. In this video we will walk through three examples of multi-agent workflows. Python code: https://github.com/langchain-ai/langgraph/tree/main/examples/multi_agent JavaScript code: https://github.com/langchain-ai/langgraphjs/tree/main/examples/multi_agent Learn to build agents with LangGraph on LangChain Academy: https://academy.langchain.com/collections/quickstart/?utm_medium=social&utm_source=youtube&utm_campaign=q4-2025_youtube-academy-links_aw Observe, evaluate, and deploy agents with LangSmith: https://smith.langchain.com/?utm_medium=social&utm_source=youtube&utm_campaign=q4-2025_youtube-links_aw

Top Comments (10)

@christopherscheidel5431 2024-01-23

Fantastic work as always. Thanks to the LangChain team.

14
@johnvicente796 2024-05-30

Great video. Can you PLS create an example in langgraph on how to use an SQL database tool and call the tool with an agent. More importantly do a RAG search with it. That would be helpful

8
@bqmac43 2024-03-19

These videos never cease to impress me. Straight-forward and effective. Thank you, LangChain team!

7
@free_thinker4958 2024-07-16

That would be great if you add a disclaimer at the beginning of the video mentionning that it's for intermediate and advanced levels because beginners will feel lost and sometimes more confused just like me

2
@adandrea 2024-05-04

Great video. One bit things I'm trying to figure out: how can the tools access the graph state? I mean custom tools. I really need them to have context of the conversation, user session metadata, etc, and I can't past them that info if the tools are called just with the parameters filled with syntetic data generated by the llm. I'm sure there is a way to do it but can't seem to fiture it out. Thanks!

2
@aryangautam7161 2024-02-06

I tried to implement multiagent using supervisor agent and running into issue where it couldn't parse function call. langchain_core.exceptions.OutputParserException: Could not parse function call: 'function_call

2
@Orcrambo 2024-01-23

Excited to get my hands dirty with langgraph. Hopping on now!

1
@ManiSaintVictorMD 2024-01-27

Thank you! Very helpful. I did the first 2 exercises. I'll be back for the 3rd.

0
@paraconscious790 2024-01-25

This is a super helpful series, a quick starter, easy to follow along with practical examples, thanks so many Harrison! Starting to experiment right away!

0
@Juliodonadello 2026-07-07

is there a way to control through the code of each agent how many call to chatgpt, for example, can be done? in order to control tokens consumption.

0

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