Learn LangChain

Overview, Tutorial, and Examples of LangChain

See the accompanying tutorials on YouTube

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If you're new to Jupyter Notebooks or Colab, check out this video

New To LangChain?

Recommended Learning Path:

1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
3. Explore the projects below and jump into the deep dives

Prompt Engineering (my favorite resources):

1. Prompt Engineering Overview by Elvis Saravia
2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
3. Brex's Prompt Engineering Guide

🤖 Project Gallery

🐇 Beginner = Entry level projects to practice LangChain

🐒 Intermediate = In depth use of LangChain

🦈 Advanced = Advanced or custom implementations of LangChain

📝 Summarization - Deep Dive: Code, Video

Project	Contact	Difficulty	Open Sourced?	Notes
SummarizePaper.com	Quentin Kral	🐒 Intermediate	✅ Code	Summarize arXiv papers

❓ Question and Answering Over Documents

Project	Contact	Difficulty	Open Sourced?	Notes
ChatPDF	Ashish Talati	🐒 Intermediate	✅ Code	Chat and Ask on your own data

📦 Extraction

Project	Contact	Difficulty	Open Sourced?	Notes
Kor	Eugene Yurtsev	🐒 Intermediate	✅ Code	This is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes	@gregkamradt	🐇 Beginner	✅ Code	Extract technologies & tools from job descriptions

🔍 Evaluation

Project	Contact	Difficulty	Open Sourced?	Notes
Auto-Evaluator	@RLanceMartin	🦈 Advanced	✅ Code	Evaluate Q&A Chains

📊 Querying Tabular Data

Project	Contact	Difficulty	Open Sourced?	Notes
TBD

💻 Code Understanding

Project	Contact	Difficulty	Open Sourced?	Notes
TBD

🌐 Interacting with APIs

Project	Contact	Difficulty	Open Sourced?	Notes
TBD

💬 Chatbots

Project	Contact	Difficulty	Open Sourced?	Notes
LangChain ChatBot	David Peterson	🐒 Intermediate	✅ Code	Input your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents

Project	Contact	Difficulty	Open Sourced?	Notes
Agents Via Vocode	@vocode	🐒 Intermediate	✅ Code	Agents making phone calls to order pizza
NexusGPT	@achammah1	🐒 Intermediate		AI Freelancer Platform. Discord

👽 Other 👽

Project	Contact	Difficulty	Open Sourced?	Notes
Slack-GPT	@martinseanhunt	🐒 Intermediate	✅ Code	A simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.

Submit a PR with notes.

This repo and series is provided by DataIndependent and run by Greg Kamradt