What is RAG & Vector Search?

Retrieval-augmented generation, vector databases, embeddings and semantic search

Where can I learn RAG & Vector Search for free?

DeepCamp offers 4,933 free curated RAG & Vector Search lessons — from beginner-friendly introductions to advanced tutorials — all in one place, no account required.

What are the best RAG & Vector Search tutorials?

DeepCamp curates the best RAG & Vector Search tutorials from top YouTube educators and industry practitioners. You can filter by level (beginner, intermediate, advanced) and duration to find the right fit.

How long does it take to learn RAG & Vector Search?

It depends on your starting point and goals. Beginners can grasp fundamentals in 2–4 weeks with consistent study. DeepCamp organises RAG & Vector Search lessons by level so you can build skills progressively.

Is RAG & Vector Search a good career skill?

Yes — RAG & Vector Search is highly valued across tech, finance, healthcare, education and professional services. DeepCamp helps you build job-ready RAG & Vector Search skills with practical, real-world lessons.

Can beginners learn RAG & Vector Search?

Absolutely. DeepCamp has beginner-friendly RAG & Vector Search lessons that start with core concepts and build up gradually. No prior experience or paid subscription is required.

RAG & Vector Search Lessons — Free Learning

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Most People Use Vector Databases Wrong

Why basic RAG fails at complex questions, and how GraphRAG fixes it. Continue reading on Medium »

Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG in Practice: Working Example to Get You Started

When RAG became popular in 2024, I was looking for a fully working sample, especially implemented in Node.js using TypeScript. Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Measured My RAG After Every Change. Here’s What Actually Moved the Needle.

Most RAG tutorials throw 10 libraries at you and call it done. I wanted to understand what was actually happening at each step — so before… Continue reading on

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Most RAG Systems Hallucinate Confidently. Yours Probably Does Too.

The uncomfortable truth about AI evaluation, and the three-layer framework that separates engineers who ship from engineers who guess. Continue reading on Mediu

Medium · Programming 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Most RAG Systems Hallucinate Confidently. Yours Probably Does Too.

The uncomfortable truth about AI evaluation, and the three-layer framework that separates engineers who ship from engineers who guess. Continue reading on Mediu

Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Building a Real-Time RAG System That Survives Production Traffic

Most RAG tutorials get you to “it works on my machine.” Production is where the assumptions die: latency budgets, cost spikes, cache… Continue reading on Medium

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Building a Real-Time RAG System That Survives Production Traffic

Most RAG tutorials get you to “it works on my machine.” Production is where the assumptions die: latency budgets, cost spikes, cache… Continue reading on Medium

Dev.to · Santanu Mohanta 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I built a RAG pipeline from scratch — no LangChain, just FastAPI + FAISS

Most RAG tutorials I found were either "pip install langchain and you're done" or 50-page academic...

Dev.to · pante5ter 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

How to stop your RAG assistant from hallucinating (a practical guide)

A RAG (retrieval-augmented generation) assistant is supposed to answer from your documents, not from...

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Real-Time Vector Ingestion with Databricks Direct Access Index: A Modern Approach to RAG…

This article explores a production-ready event-driven pipeline that leverages Databricks Direct Access Vector Index for real-time data… Continue reading on Medi

Dev.to · Emmanuel Boakye 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Building a RAG Pipeline for Greenwashing Detection in Oil & Gas

How I built Claimify ESG — scoring 2,200+ climate claims from sustainability reports against NGO evidence, with company-scoped retrieval, two-step classificatio

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

The Day I Realized Semantic Search Wasn’t Enough

During my last internship, I worked on building AI-powered features like: Continue reading on Medium »

Dev.to · Sebastian Casvean 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Extract Plain Text from Medium Posts for RAG and Search Indexes

Chunk clean article content for embeddings, summarization, and full-text search—skip nav, clap bars,...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Graph RAG and the Untapped Goldmine of Public Records

Public records are everywhere and nowhere. Property deeds, corporate registrations, court dockets, campaign finance filings, procurement… Continue reading on Me

Dev.to · Ai developer 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG SOTA: I Built SEQUOIA and Tested 7 Pipelines — Full Results

RAG SOTA: I Built SEQUOIA and Tested 7 Pipelines — Full Results After 20+ hours of compute...

Dev.to AI 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

GraphRAG vs Vector RAG: When Simple Vector Search Stops Being Enough

GraphRAG is not just another AI buzzword. It is part of a larger architectural shift happening inside retrieval-augmented generation systems. Most early RAG sys

Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Cómo construir un pipeline de GraphRAG para FinOps en Kubernetes

Casi cualquier persona que haya montado un RAG "de fin de semana" conoce la sensación: funciona increíble en la demo, y luego se cae en… Continue reading on Med

Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Project Citadel: Building a Fully Sovereign Dual-Engine GraphRAG on Consumer Hardware

How I combined Neo4j, pgvector, and Gemma4:31b to solve the local document management nightmare — and the technical dead-ends I hit along… Continue reading on T

Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Your RAG System Is a Demo. Here’s What a Real One Looks Like.

Every architectural decision I made building a production-grade agentic system — and the mistakes that led me there. Continue reading on Medium »

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Top 5 RAG Use Cases in Modern AI Applications

Document Search Assistant Continue reading on Medium »

Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG Is Burning Money — I Built a Cost Control Layer to Fix It

Most RAG systems are optimized for answer quality, not cost—and that blind spot gets expensive fast. In this article, I break down a production-ready cost contr

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Asked Claude to Roast My RAG Code. Here’s What Happened.

I’ve been building a RAG (Retrieval-Augmented Generation) app for the past week.Context windows. Embeddings. Chunking strategies… Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

How to Add Semantic Search to Your Existing Database

Your existing Postgres, SQLite, or MySQL database already holds the data. Here's the exact migration path — with working Python code — to… Continue reading on M

Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Built a RAG Pipeline That Kept Lying to Users. Here’s What Fixed It.

Three weeks after shipping a knowledge-base chatbot for an internal project, I noticed a serious retrieval issue during testing. The bot… Continue reading on Le

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Built a RAG Pipeline That Kept Lying to Users. Here’s What Fixed It.

Three weeks after shipping a knowledge-base chatbot for an internal project, I noticed a serious retrieval issue during testing. The bot… Continue reading on Le

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Same Answer, Different Evidence: Checking Citation Drift in RAG Pipelines

Why output stability does not always mean retrieval stability Continue reading on Level Up Coding »

Dev.to · Gaurav Thorat 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Why 99% of RAG Apps Crash in Production (Naive vs Scaled Node.js)

Your RAG demo works on localhost. Under real load—socket exhaustion, 429s, and pool timeouts kill it. A frontend dev's walkthrough of naive vs production Node.j

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Most AI MVPs Fail at Retrieval, Not the Model

Most AI products don’t fail because of weak models. They fail because retrieval breaks in production. Continue reading on Medium »

Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG corporativo não é sobre volume: é sobre curadoria, freshness e cache

Como configurei 9 agentes e 4.709 fontes na ZapSign, descobri que o número de fontes nunca foi o ponto, e por que o monitoring com agente… Continue reading on M

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Building RAG End to End: From Zero to a Production Pipeline (With Code)

I’ve shipped retrieval systems that answer questions over millions of documents. Here is everything that actually matters, built up one… Continue reading on Med

Dev.to · shaikhadibbb 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

How I rescued a RAG assistant from memory leaks and got it running on a 512MB RAM free tier

A few weeks ago, I had a classic "works on my machine" moment. I had built a nice RAG prototype...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Stopped Chunking Before Embedding, and My RAG Retrieval Got Cleaner

Last week I was debugging a RAG pipeline that looked healthy on paper and still gave bad answers. The embeddings were fine. The top-k… Continue reading on Mediu

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG Troubleshooting Guide: Why Your Answers Are Wrong (Plus Fixes)

I’ve shipped three RAG systems into production over the last two years, and every single time the first bug report came in as “the AI is… Continue reading on Me

ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 1mo ago

Same Question, Different Source, Different Answer: Auditing Source-Dependence in Medical Multi-Source RAG

arXiv:2605.29084v1 Announce Type: cross Abstract: A retrieval-augmented generation (RAG) system deployed over a multi-author institutional corpus can give a dif

Dev.to · Hashevolution 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Why output-stage PII masking is the wrong protective surface for data exfiltration in RAG

"The output filter runs after the LLM has already seen the confidential data. By then, three classes...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Your RAG Database Is a Backdoor: Replicating and Defending Against AgentPoison

Chinmay N, Chinmay B, Hayden, and Suditi (UC San Diego, DSC 291 Spring 2026) Continue reading on Medium »

Dev.to · Ai developer 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG SOTA: I Tested 7 Pipelines and Built SEQUOIA (Open Source)

After 20+ hours of compute time on local hardware, I benchmarked 7 RAG configurations against real-world tasks. SEQUOIA (RAPTOR tree + step-back prompting) cons

Dev.to · Ai developer 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

RAG SOTA: I Tested 7 Pipelines and Built SEQUOIA (Open Source)

RAG SOTA: I Tested 7 Pipelines and Built SEQUOIA (Open Source) After 20+ hours of compute...

Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Architecting Zero-Cost RAG Pipelines: External Cloud Inference vs. Self-Contained Local Models

When designing Retrieval-Augmented Generation (RAG) architectures for complex document analysis, engineering teams constantly battle the… Continue reading on De

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Architecting Zero-Cost RAG Pipelines: External Cloud Inference vs. Self-Contained Local Models

When designing Retrieval-Augmented Generation (RAG) architectures for complex document analysis, engineering teams constantly battle the… Continue reading on De

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

GraphRAG vs Traditional RAG: When Vector Similarity Stops Being Enough

Published on May 27, 2026 Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Debugging RAG

How ingestion fixes improved retrieval accuracy and response completeness Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

We Stopped Chasing RAG and Built Something Boring Instead. It Works Better.

Everyone I talk to in AI right now is doing the same three things. Continue reading on Medium »

Dev.to · Alexander Ivanov 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

I Built a Lightweight Python RAG Orchestrator That Works with SQLite, PGVector and Qdrant

Most RAG frameworks today assume: a huge dependency graph mandatory LLM orchestration opinionated...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

How to Build RAG in Harness Engineering

Agent Harness Engineering is not about waiting for stronger models. It is about engineering everything around the model: tools, context… Continue reading on Med

Dev.to · Ayi NEDJIMI 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

ChromaDB vs Qdrant vs Weaviate vs pgvector: vector database shootout 2026

Every RAG pipeline I've reviewed this year hits the same decision point: which vector store do you...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Building ClaimWise AI: A Document-Grounded Insurance Assistant Using FastAPI, RAG, and an AI…

Insurance documents are hard to understand. Continue reading on Medium »

Reddit r/deeplearning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Standard RAG has no concept of document versions: cost me a while to figure out why answers kept blending superseded policies

Took me longer than I'd like to admit to diagnose this one. Had a LangChain RAG pipeline over an internal knowledge base. Retrieval metrics looked fine. Chunk s