Build a production-ready Retrieval-Augmented Generation (RAG) app from scratch using LangChain, OpenAI embeddings, and ChromaDB. Includes chunking strategies, reranking, and evaluation.
LangChain vs LlamaIndex: an honest 2026 comparison for developers building RAG apps, AI agents, and LLM pipelines. Learn which framework wins for your use case with code examples.
LangChain is the most popular framework for building LLM-powered applications in Python. From chatbots to document Q&A to autonomous agents — this guide shows you how to build real AI apps with LangChain and modern LLMs.