Building Corrective RAG from scratch with open-source, local LLMs

[@NS-tr9ej]

I did not find before a simpler and more practical explanation of running local model and using Langchain. Congrats

[@ahmed_hefnawy1811]

is that solution solve multihop question that happend in basic RAG !?

[@joshuacunningham7912]

I love Lance’s teaching style. He makes this topic so accessible! 👏

[@jim02377]

That is one of best explanations of using local models, langchain and langGraph that I have seen. Awesome job!

[@priyanshugarg6175]

Hi. Would we need a high end pc to run models locally ? My computer has only 4gb RAM which I suspect would not be enough.

[@jim02377]

It won't be. I ran it on an i5 with 16GB of RAM and it can process one token per second. It is better on a the same machine running 32GB but still a bit slow. Trying it on a M2 mac next and an old server with 80GBytes of RAM @@priyanshugarg6175

[@JJN631]

​@@priyanshugarg6175you need at least 8 ram and 8vram

[@roscatres]

@@priyanshugarg6175 Yes, you do need a powerful computer. As a rule of thumb, you can run models that are smaller than your VRAM (not RAM, the memory of your GPU). There are exceptions and other ways, but yes, you need powerful computers for this.

[@aladinmovies]

​@@priyanshugarg6175with linux it's enough for small models not more than 1Gb

[@michaelwallace4757]

Great job explaining the process and keeping it understandable to a non-programmer!

[@JoshuaMcQueen]

Your videos continue to be pure gold. Keep 'em coming!

[@SolidBuildersInc]

Ok, this was a jewel of a find and I couldn't have said it better than you did in your closing. Up until now I was looking for a local model solution to perform the agents and only could find OpenAI for LainGraph. Your description of how each node is performing a specific discpline with an ability to have a Boolean to proceed to the next step is really simplifying the experience. I have been saying to myself how this is really just writing code with some functions so why is it so exciting? It's basically integrating the AI into our everyday coding sandbox that we are so familiar with and giving it that Python Syntactic sugar experience. Anyway I really really appreciate you sharing this approach. It is so straightforward and clean to just Build whatever you want and now maybe reuse the code for other models instead of agents. It's endless

[@donb5521]

Thanks for another great video and notebook driven tutorial. Appreciate the heads up on JSON mode in Ollama - a lot of great functionality built into their API.

[@Egorfreeman]

This is a very helpful and practical video. And I would be interested in seeing an implementation of a chat application using Langraph and FastAPI.

[@jofus521]

Thank you. Wow. This example is even in the TS/JS repo. That is so awesome

[@jim02377]

Same question on the different configurations (The Windows ll PC is actually an i7). "Why is the sky blue". It took 3 minutes on the I7, 45 seconds on the old server and 17 seconds on the Mac.

[@roscatres]

I assume only the Mac has a GPU?

[@jim02377]

That is correct. I can't get a card for the old server and the battery life with an NVIDIA card in my laptop would have been terrible. I have heard the Mac has a GPU and I have heard it has a neural processor. I am not sure what the M2 has but it works well. Especially for only having 8gigs of RAM@@roscatres

[@MikewasG]

Thank you very much for your efforts, your videos are very helpful to me!

[@nguyenanhnguyen7658]

Rerank model that is trained on relevant dataset will help, and that is the most important

[@aladinmovies]

Good explanation, only about the topic

[@TournamentPoker]

excellent video! Thanks for sharing!

[@kevinkawchak]

Thank you for the discussion.

[@shakilkhan4306]

Fantastic job bro.. Thank you.

[@harshgupta3641]

Great explanation, why we used graph in the end to make the process works , can we do this through procedural or functional way ?

[@klncgty]

For example I want to set up a rag sistei . Thanks to this RAG and LLM, it will calculate the data in my query according to the data in the PDF. For this, I get different results every time. How can I make this consistent?

[@lucianst.2444]

Awesome explanation. Thank you! But I have one question. I’m pretty new in this field. Why did you choose to use mistral instruct on behalf of mistral?

[@shashank1062]

version of the model is fine-tuned for conversation and question answering.

[@kenchang3456]

Thanks for this. I see the value and now I have a way to toy around with it and learn.

[@preben01]

This was sooooo usefull, thank you so much for this.

[@nityasingh3]

Awesome explaination

[@wuhaipeng]

great sharing!

[@TheBodybuildingG]

I did not get one thing…is the web search triggered even if one of the document is considered “not relevant” ?

[@howechan4818]

I really appreciate.

[@pich1337]

Awesome! Thanks!

[@eointolster]

Just starting the video but can we do rag on documents with check boxes. Like can we retrieve an answer as to whether a check box is ticked. Thank you

[@r.lancemartin7992]

(This is Lance from the video) I've never tested check box state in documents. If it's in an image, multi-modal RAG would work.

[@jma7889]

In production env, what kind of GPU machine do you recommend for low usage case? Can it run with CPU only machine? Thank you!

[@aladinmovies]

Only with cpu you can run, 8gb ram nice, but 16 and more is good

[@mohamedkeddache4202]

how can i see the source of the web search ? in langsmith i see the documents that are retrieved, but i didn't find the source of the web site that was retrieved from.

[@jim02377]

I ran it on a i5 PC running windows 11 with 16GB of RAM and it can process 1 token per second. It is better with 32GB of RAM. I am trying an M2 Mac with 8GB next and an old i5 server with 80 GB of RAM.

[@r.lancemartin7992]

Got it. I run on an m2 with 32GB of ram.

[@jofus521]

How about i7 with 128gb ram and 48 gb vram?

[@binstitus3909]

Can we build this application in production using the same approach as you do, downloading the model MistralAI? Can I use this in my production, or should I use APIs to access the model?

[@choiswimmer]

If you are here asking langchain this question means you fundamentally don't know or understand what it takes to deploy these models

[@r.lancemartin7992]

(This is Lance from the video.) In production, it is typically user to use API unless you are deploying the model yourself.

[@hari8568]

Is web search called when even one context is irrelevant?or does it have to be that all are irrelevant?

[@Jeganbaskaran]

Any idea why langchain not integrate with LLingua. Is there any roadmap to implement this ??

[@laurenstaples7778]

is anyone else trying this out on a Windows machine? I'm having an error "RuntimeError: Failed to generate embeddings: locale::facet::_S_create_c_locale name not valid" on the Index section code, seems to be a windows issue....

[@laurenstaples7778]

I ended up installing Windows SubSystem Linux and running in the Linux environment and was able to get it to compile there!

[@drm2005]

How can i use an api of langchaine to my RAG i found only open ai api ?

[@chitrakshakaushik3266]

It doesn't work on windows as when we import WebBaseLoader it throw an error no module named PWD

[@MidSeasonGroup]

How close can RAG enabled agent automate actual software development. PDF review and summation is great but actually application development is what I want.

[@r.lancemartin7992]

Do you mean that you want a coding assistant? We have a project coming out soon focused on this - can ingest a codebase and perform question-answering w/ executable code.

[@MidSeasonGroup]

Hi Lance @@r.lancemartin7992 thanks for getting back to me. That’s correct, an effective coding assistant for new and existing codebases. So many of our applications need to be refactored or rewritten altogether. I’m glad this is on your roadmap and looking forward to the beta.

[@MidSeasonGroup]

@@r.lancemartin7992 Yes, when is the project in beta.

[@roi365]

How is it local if we need api keys?

[@r.lancemartin7992]

(This is Lance from the video) API keys are only needed if you are using Mistral API. Not for local.

[@ganeshkamath89]

I think the function should have returned Yes / No mapped to specific question instead of an overall Yes / No. Then the calling function should have done web search only for the questions which had got a No.

[@akshatsingh6036]

You are not using format_docs function in generate fun. ===================== your code: generation = rag_chain.invoke({"context": documents, "question": question}) ===================== Should be this: generation = rag_chain.invoke({"context": format_docs(documents), "question": question})

[@r.lancemartin7992]

(This is Lance from the video) Thanks, I'm updating the notebook and fixing.

[@GeoffLadwig]

nice

[@jawadmansoor6064]

what's with the weird logo? i liked the parrot now it is pirate ninja

[@EddyLeeKhane]

anyone else has the issue that it runs indefinetly in jupyter notebook when asking bigger questions or letting it compare? my prompt: "Find us two more related papers and give a short summary for each"

[@r.lancemartin7992]

(This is Lance from the video.) Interesting, I haven't seen that. I'm going to update the notebook w/ a few things. If easy to share your code, I can have a look.