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

[@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!

[@2TanishChavan]

Sir 🫡

[@Akuma7499]

❤

[@infraia]

What a great story! I am sure you are doing amazing work!

[@markus_dev_cwb]

Wow. Tks to share your story.

[@stevemcclintock309]

@padhuLP WOW thats awesome that you are still doing and learning at 70. You must be an amazing person, more young people meed to take some tips from you on life lessons. Even better I assume you are retired and doing all this for fun? I only hope I can live and learn as long. Keep be inspirational and take care for your future, Love from N.Ireland ❤

[@tayyabshahzad10]

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

[@2TanishChavan]

Yes 🙏 pls

[@ArianeQube]

Yes, please. This is pure gold !

[@bhancock_ai]

Great suggestion! I’ll definitely add a LangGraph master class to the queue for you guys! 😁 And I created this tutorial because the docs for the new version of LangChain are kinda confusing. I’m hoping this video will help everyone spin up on the new version! If you have any questions on anything, please let me know!

[@tayyabshahzad10]

​@@bhancock_aiYou're right! I started working with LangChain about a year ago, and now that I need to use it for my current project, almost everything has been deprecated. It was very frustrating at first. Also your CrewAI+Groq video is very good for learning purposes.❤

[@abax_]

@@bhancock_ai Yes plz and show how to use function tool calling and react agent with chathistory in it able to use doc store to retrieve information and plz with open source model like chat groq that after making the application can be swapped with gpt so on that structure

[@bartolli74]

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!

[@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! 🙏🙏🙏

[@harikrishnanb7273]

after 46 mins into videos. amazing man ❤️‍🔥. i really needed this. this is the best resource to learn langchain i came across. full review after finishing the video!!

[@harikrishnanb7273]

oh i forgot. Thanks man really thanks 🙏

[@cristobalml9460]

Great tutorial... Now I started to understand better Langchain... I bought one Langchain course from Udemy and after watching the first section I just got lost and frustrated... Your explanation is far better... Thanks a lot... Liked and subscribed... definitely I will watch more videos from you.... Thanks again!

[@rikhavthakkar2015]

Surely one the best tutorial videos I have come across on youtube so far. Not just for Langchain.....but across all the video tutorials for any technology I have seen so far......This 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!!!

[@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 :)

[@subhromukherjee14]

Hi Brandon, Thank you so much for putting together this Master Class. Previously, I was watching videos of older Langchain versions and encountered many changes and warnings when coding. Those videos had numerous gaps. After watching your videos and coding along, I’ve found it much easier to follow the entire Master Class. Your explanations are very clear, and your visual diagrams greatly help in understanding the flow. Thanks again!

[@testfirsttestlast706]

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

[@DanielOliveira-vh4ye]

This is the best free video that I've ever seen about genAI

[@patalunavi1491]

Hi Brandon, I just wanted to express my gratitude for your incredible LangChain tutorial. Your explanation was crystal clear and went straight to my head. I’ve watched numerous tutorials, but none have provided the depth of information and clarity that yours did. Because of this, I have a special request: could you please create a similar type of video on LangGraph? Your teaching style is truly exceptional, and I’m confident that a tutorial from you on this topic would be immensely beneficial for many learners like myself. Thank you so much for your hard work and dedication!

[@gabrielrenno8927]

This is the best Langchain tutorial ever created

[@jiaqint961]

Thanks for your tutorial! just finished the entire video. The course is very well structured, and instruction is very clear.

[@Productivity-s6s]

Bro I would literally pay for this information! You r directly on point. I have no idea, how did i find this treasure.

[@bx1314]

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

[@unknown.ethereum]

This channels definitely deserves more! Kudos to you Brandon! Thanks for all your hard work.

[@turglow01]

If anyone is having trouble running the 1a_rag file around 1:33:00, the solution that worked for me was to change line 24 to: loader = TextLoader(file_path, encoding = 'UTF-8')

[@tanvirahmed1959]

the consequence of the video is awesome.

[@bhancock_ai]

I love that 😂😂

[@devloper_hs]

Why all projects use OpenAI, they removed the free credits and students don't have money to invest to learn. So kindly make use of some open source model also.

[@Dis-Trackted]

That is a bit lazy. You can easily find out how to change the model and embedding provider in the official documentation and everything else applies. He explained how to switch to Anthropic, and its totally analogous. PS: Im not even a programmer. I am a self-taught and my background is in medicine, so I don't think I have any comparative advantage.

[@henryguy3722]

I think it just too easy to use open air and it works.. ideally the youtube community ahould make an effort to give altenrative options so they can build something cheaper.. for end users. I cant imagine building and app with open Ai inference it would be so expensive for my customers.. it just bad proposition..

[@ansenhuang]

One of the best tutorials I’ve seen🎉

[@ophelia6207]

Hands down the best LangChain tutorial I've watched. Thanks a lot, Brandon!

[@GilluanFormiga]

The best LangChain video.

[@lalitgehani]

If you run into encoding issue while running 1a_rag_basics, then modify TextLoader command as below loader = TextLoader(file_path, encoding="utf-8")

[@JCamiloVargas]

Thanks for pointing that out

[@SDAravind]

This is much better than official documentation. Loved it. Thank you for the video

[@IdPreferNot1]

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

[@pratikkumar939]

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....

[@jaisharma2887]

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

[@iampuco445]

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. 🖖

[@aishikbandyopadhyay8191]

Brilliant tutorial which explores to the depths! Btw Brandon, how to incorporate google gemini or groq or ollama instead of openai service? The prompt template is different for each case. Please make a tutorial on incorporating the same!

[@TheYoungSoul]

I have been using Ollama while working through this tutorial with very few issues and I just used the prompts as they were in the code base. Give Ollama a try. I think you will be surprised at how easy it will be to swap in llama3.

[@free_thinker4958]

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

[@andydataguy]

Yesss! 🙌🏾

[@tysonbenson]

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

[@bhancock_ai]

Thanks Tyson!! It’s a long master class so make sure to grab yourself a few cups of coffee 😅

[@0limjon]

This is a great tutorial. I have been searching langchain courses for a while, and this is the best of for now. Thank you for your effort, it was very helpful.

[@rorymacdonald2058]

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

[@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 !

[@TheYoungSoul]

Were you able to get through the agent section using the Ollama phi3 model? Thanks

[@bkentffichter]

This is great. And I appreciate learning about poetry. But for beginners, they need to learn what’s going on with environments so running through the standard way would be helpful

[@user-jz2tg8tl5f]

thank you, the way you are explaining these concepts is very easy to follow

[@xhridhar]

Fantastic. Thanks so much 🙏🏽

[@SelfLabByFaraz]

Invaluable course!

[@mahdiansari7047]

Very helpful video. Thank you so much for the content. I really appreciate what you have done in this video.

[@dikshantgupta5539]

Thank you so much for creating such fantastic content 😃😃

[@humanish_ai]

Finally you dropped 😮

[@evandroreisunreal]

Great tutorial. 🎉 I am curious to learn which app you use to do the drawings and the whiteboard. Could use those in my classes too. Thanks.

[@prerithsagar5694]

you deserve more subscribers Brandon. "A" class content. Can u do a tutorial on fine-tuning pre trained models and also about GraphRAG? Thank you in advance

[@rorycawley]

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

[@SDAravind]

Hi Brandon, A video on How to use openai assistants for RAG application with memory instead of using langchain would simplify a lot of things.

[@warangal9999]

Super informative and very well explained, great job Brandon 👏

[@twocats2543]

This is an outstanding tutorial. Exceptionally well done!

[@hadifares8471]

Awesome!! Thanks!

[@codeforyou8269]

Mad Maxxxxxx course.

[@jonathankewe9415]

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

[@GregPeters1]

Hey Brandon! Thanks for this!

[@bhancock_ai]

Thanks Greg!! Please let me know if you have any questions! Happy to help!

[@RishiRaj-zs4fh]

Bravo!! Can you please provide a video on LangGraph as well?

[@SaddamBinSyed]

A very well done and This is simply Awesome explanation.. Eager to watch your explanation on different topics.

[@MrLyonliang]

really easy to understand and follow along step by step, thanks a lot

[@TFAOPEN]

please do one focusing on agents

[@bhancock_ai]

Hey! I’d love to do some deeper dives into LangChain and agents! What else would you like to learn? If you’re interested in using a multi-agent framework, I definitely recommend trying out CrewAI!

[@TFAOPEN]

@@bhancock_ai how LangChain can be integrated with platforms like Voiceflow and VAPI to build robust voice interaction systems.

[@paulmiller591]

Fantastic thanks Brandon.

[@bhancock_ai]

Thanks Paul!! Hope to see you in the weekly call tomorrow!

[@user-me7xe2ux5m]

Awesome - thanks, Brandon!!!

[@bhancock_ai]

Of course! I hope you like the master class! 😁

[@Dis-Trackted]

Thank you Brandon! I hope you can make one about LangGraph or LagServe in the near future.

[@hendoitechnologies]

post full video about Claude 3.5 sonnet model and Claude API - full course video

[@chat-jpt]

Totally the best ever.

[@andreluistomaz3930]

Hi Brandon! Very cool content! Ty, man! 🖖

[@bhancock_ai]

Thanks Andre!! 😁

[@kreddy8621]

Brilliant, thanks great content

[@generalchris90]

Thanks Brandon!!

[@mushinart]

Cool work , for the part of the prompttemplate final example where it doesn't work, tey to use the .format() that comes with it... hopefully it will work

[@user-rk4ux3cj8q]

brilliant

[@adriiman7801]

Great Video 🙌🙌

[@Salionca]

👍 Thanks for the videos and everything.

[@bhancock_ai]

Of course! Y’all are awesome! Please let me know if you have any questions or if you’d like me to do a deeper dive into any topics 😁

[@user-jq1ps4jv9z]

nice tutorial !!

[@wesleybrito9909]

Amazing, congrats 🎉

[@pingguopi]

Amazing course! Thanks Brandon! BYW: What is the tool used draw stuff? That looks so neat👁‍🗨

[@st.3m906]

Amazing!!!

[@sairohanbangari7524]

Hey Brandon, just wanted to get your thoughts on while creating an Agent, what if the agent needs more information from the human i.e follow up questions. We can make a custom tool that asks the question back to the user. However what would the implementation of this be for a web application look like? Would you suggest the follow up question as the final state and then invoke the agent again once the user replies? Thanks!

[@aneeshb8087]

Hello Man You are awesome life saver. Please create a project course with lanchain with real world examples.

[@taylorhancock4858]

Awesome video!!!!

[@bhancock_ai]

Thanks Tay Tay! Now we got to start using AI to start automating some of your real estate!

[@changmatta]

Wow. Amazing tutorial

[@x-bowmasters3241]

what a great tutorial!

[@mayureshbande5515]

Please create in langchain javascript...much needed

[@techietoons]

Awesome, detailed video.

[@fernsmark18]

Thanks Brandon :)

[@nachoeigu]

Tremendous! Thank you

[@never2nervous13]

first and foremost really awesome tutorial. can't wait for more like this. I'm having trouble with 2b_rag. i tried various thresholds for the retriever and none are working.

[@lavanyaraman7999]

Initially it didn't work for me too. I tried to remove the k value and set the threshold to 0.4 then few checking (if conditions ) then it worked . if condition (optional) .

[@changmatta]

Adding tutorials on memory would be useful too

[@MihirPrakash-wq1oc]

Hi Brandon, Could you please make a project video on using crewAI for data Analysis from a SQL database?

[@shingshing825]

Hi Brandon, going through your tutorial I saw that once you copy paste the location from poetry shell the squiggly lines should disappear but for some reason this isn't working for me as it says the dotenv module is not found. Thanks for providing this resource!

[@qzwwzt]

Congrats

[@awakenwithoutcoffee]

thank you for sharing your knowledge ! Question: for tools creation the docs mentioned a different approach using the @tool method. Can you explain a bit what the difference is in approach ? ☀

[@biplabdaschoudhury7159]

poetry install is not working : getting below error: ackage operations: 13 installs, 0 updates, 0 removals - Installing torch (2.3.1): Failed RuntimeError Unable to find installation candidates for torch (2.3.1)

[@TheAmazonExplorer731]

please make a video on visual question answering using llm or multi agent

[@KumR]

Thanks Brandon. I got pycharm already. Will adding poetry create any issues? Is poetry an IDE ? or is it like pip

[@bhancock_ai]

Hey! Poetry is a tool that allows you to easily manage your python environments so you shouldn’t have any issues using it with Pycharm. Also, how do you like Pycharm compared to VSCode?

[@KumR]

@@bhancock_ai - Thanks Brandon. I like PyCharm as it comes with many built-in tools and features, such as code analysis, debugging, and testing. But community version has some limitations like we cannot run ipynb. And it can be heavy on system resources, which might slow down performance. But running mini RAGs is not an issue. I also switch to Jupyter for ipynb .Once again thank you for your great compilation on langchain. Looking forward to trying out all projects.

[@andewwayne7751]

The RAG chapter is very very confusing. In your video you show a folder DB, but when the code is downloaded it does not exist. Maybe I am missing something, but I don't see a section on how to set up chromadb

[@testfirsttestlast706]

Brandon, in example 7_rag_conversational.py, for the {context} in the qa_system_prompt template, is it something coming from the previous Runnable from the chain? I don't see it being as one of the input parameters.

[@bs_general]

Thanks for this tutorial. The form to request access to the code is missing from the page in the description

[@bhancock_ai]

Hey! If you add your email, it will send you an email that contains links to the source code plus links to source code for the rest of my projects! Please let me know if it’s causing you any issues!

[@Caconian]

@codewithBrandon, can you share the tool which you are using to make the video tutorials and video please as well?

[@TMFG_channel]

Great Tutorial!! Does it always need txt files for rag? I tried using .pdf which had tabular data of devices with their information but it wasn't able to retrieve any answers. I tried with 3.5 turbo and 4o. I remember with langchain v.01 I was able to read all extensions (pdf, txt, docx, etc). Please tell me what am I missing?

[@changmatta]

Tool decorator video part is missing? After 1_tool_constructor it's jumped directly to 3_tool_base_tool.py

[@RealLexable]

Whats about the rumours that langchain isn't production ready?

[@everybodyguitar5271]

I found some website has bot detection and ask for captcha. Is there a way to bypass this by web-scrape?

[@teamtom]

can i use miniconda instead of Poetry? i got used to miniconda and never used poetry before...

[@karthikb.s.k.4486]

Thank you for the session i am getting error with torch libary after doing poetry install -no-root it says unable to find the installation candidate for torch 2.3.1 i am using python 3.11.6 is poetry from the file looks for python 3.12?