LangChain Master Class For Beginners 2024 [+20 Examples, LangChain V0.2]

🤖 Download the Source Code Here:

Don't forget to Like and Subscribe if you're a fan of free source code 😉

📆 Need help with CrewAI, join our FREE Skool Community:

In this masterclass, I guide you through mastering LangChain and building powerful AI applications, including integrating Chat Models like ChatGPT, Claude, and Gemini, creating RAG chatbots, automating workflows with chains, and developing intelligent AI agents with custom tools. The video includes over 20 real code examples, and all the source code is available for free!

📰 Stay updated with my latest projects and insights:

Checkout my CrewAI Tutorials:

Timestamps:
00:00:00 Introduction
00:01:34 Course Overview
00:04:05 Setup Environment
00:08:31 Chat Models Overview
00:10:58 Example Overview
00:11:35 Chat Models
00:16:12 Chat Models - Basic Conversation
00:20:24 Chat Models - Alternatives
00:22:21 Chat Models - Real Time Conversation
00:25:41 Chat Models - Save Message History
00:33:59 Prompt Templates
00:37:07 Prompt Templates - Basic
00:42:52 Prompt Templates - With Chat Model
00:46:12 Chain Overview
00:49:43 Chain - Basic Example
00:53:06 Chain - Under The Hood
00:59:23 Chain - Extended
01:02:30 Chain - Parallel
01:09:57 Chain - Branching
01:16:18 RAG Intro
01:18:13 RAG Overview
01:26:17 RAG - Basic Example
01:34:16 RAG - Basic Example Part 1b
01:41:09 RAG - Basic With Metadata
01:46:58 RAG - Text Splitting
01:54:42 RAG - Embedding
02:01:11 RAG - Retriever
02:08:49 RAG - One Off Question
02:13:35 RAG - Conversational
02:22:25 RAG - Web Scrapping
02:30:24 Agents & Tools
02:36:50 Agents & Tools - Basic
02:47:00 Agents - React Chat
02:55:23 Agents - React Docstore
03:03:07 Tools - Constructor
03:08:22 Tools - Base Tools
03:16:52 Outro

[padhuLP]

Brandon, I am nearly 70 years old and I have been a programmer for over 4 decades. I started as a Cobol programmer and been updating my skills as I went along. Never has been my learning at such a rapid pace as it is in the last year or so since all the AI tools have been arriving. I had just a basic knowledge of Python earlier, but now I have been able to do wonderful things with what I can develop with AI agents using tools available. Your tutorials have been the best I have seen so far. I can't thank you enough for providing the complete source code and explaining very well everything in your videos, including the environment setup. Keep up the great work!

[bartolli]

Brandon, this LangChain tutorial is hands down the best I've seen! You nailed all the fundamentals and went deep into the details in such a human and relatable way. Your style makes complex stuff super easy to understand, and the practical examples are spot on. Love that you didn't push any products, just pure high-quality content focused on real value!! This is a must-watch for anyone diving into the matter. Huge thanks for creating such an awesome resource!!! I'll never look back at any other framework after understanding the power of LangChain.
I hope you'll create a tutorial with the same level of detail for the new LangChain GenUI. Your style makes learning so much more enjoyable and effective!
Thanks for all the great content!

[rikhavthakkar]

Surely one the best tutorial videos I have come across on youtube so far. Not just for across all the video tutorials for any technology I have seen so is precise, crisp... hits the nail on the head with the learnings!!! and the best thing is it packs so much in.. like a crash course.. not wasting any time at all on typing the code during the recording... saves a lot of time and does not digress the listeners attention!! @brandon you are a good teacher and you know how to hold attention of students like me who sometimes never go beyond 10 mins into the video if the teacher is not able to hold attention and present him/her self well !!! SUPER JOB!!! FORMAT of the Training EXCELLENT!!!

[tayyabshahzad]

This tutorial is much needed. Please create one on Langgraph as well.

[KrutoshReviews]

Took 5 days to complete watching and understand each example! Now I am off to building my first agent. Thanks Brandon!

[bx]

It takes time and you have make sure you know it but WOW this is the best class so far by a large margin!

[storagefreak]

Brandon, this course is outstanding! It's exceptionally well-structured, clearly explained, and superbly produced. I aspire to create tutorials to my channel with half of the quality you've got here :)

[rorymacdonald]

Loved that you recommended watching first on double speed - was actually doing that by the time you said it :-)

[robel_asefa]

Wow, this LangChain Crash Course was amazing! It broke down the concepts way better than the official documentation. I learned so much from this video, I just had to come online to say thanks! 😂 Really clear and to the point. Please keep making more videos like this on LangChain, LangGraph, and similar stuff! Thanks again! 🙏🙏🙏

[testfirsttestlast]

This is by far one of the best courses on youtube, hands down. Brandon is great! (disclaimer: I don't know Brandon personally)

[pratikkumar]

This is some serious quality tutorial. I have been working on this stack for 1 year now still you made me learn a thing or two.

Amazing....

[jaisharma]

Best tutorial about langchain not only on yt but on the entire internet. You are a god bro ❤. Please make more such tutorials on langgraph and langsmith

[IdPreferNot]

Such a great video explaining LangChain in detail. This should get all the likes! LangGraph please!

[iampuco]

Hey Brandon, I played around with Langchain with different learning sources for about two month. But this course gave me more insight than all others together. Very well structured, amazing didactic skills and super performance. Only the wiki example … I would have recorded it once again as it doesn’t match the accuracy of the rest (and yes: I understand that you wanted it to be done and out 😂)
Thank you very much. Also for posting it here for free. 🖖

[jonathankewe]

Hey Brendan, great tutorial. Thanks for sharing....Many Blessings...❤

[tysonbenson]

Thank you so much, Brandon! So excited to jump into this!!!

[twocats]

This is an outstanding tutorial. Exceptionally well done!

[rorycawley]

This really is a wonderful, a huge ton of great work - well done, very high quality!

[free_thinker]

You're the man ❤️👏 we're looking forward to see some similar content on knowledge graph in langchain (neo4j etc...)

[Enkumnu]

Thank you very much for this masterclass ! Helpfull I used ollama with model = Ollama(model="phi3", ...) to do your code. Works perfect. Thank you !