LangChain

Build a RAG System From Scratch: LangChain & OpenAI

Build a RAG System From Scratch: LangChain & OpenAI

Stop hand-waving through RAG architecture. This guide builds a complete retrieval-augmented generation system from scratch using LangChain and OpenAI — with real code, real chunk strategies, and the failure modes nobody warns you about.

Oktay Ateş Oktay Ateş
· 6 min read min
LangGraph vs LangChain: Which Framework to Use

LangGraph vs LangChain: Which Framework to Use

LangChain or LangGraph? If you're building a serious AI application, this is the first real architectural decision you'll face. Here's the practical breakdown: when each framework wins, where they fail, and why most production systems end up using both together.

Oktay Ateş Oktay Ateş
· 6 min read min