Building local AI apps with LangChain and LlamaIndex

What you should know

Setting up your environment for building AI apps

AI orchestration concepts

Building an app with the OpenAI API

Running local LLMs

Your first LangChain app

Your first LlamaIndex app

Debugging AI apps

AI over local documents: Retrieval-augmented generation

Choosing an embedding

RAG with LlamaIndex

RAG with LangChain

Challenge: Document summarization

Solution: Document summarization

App concepts for chaining and more complex workflows

Getting JSON out of the LLM

LLM function calling

Challenge: Local LLM task offloading

Solution: Local LLM task offloading

Introduction to the ReAct agent framework

Implementing a ReAct agent

Challenge: LangChain and LlamaIndex strengths and weaknesses

Solution: LangChain and LlamaIndex strengths and weaknesses

Next steps for AI app engineers