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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