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 4,921 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

Dev.to · Puneet Gupta 🔍 RAG & Vector Search ⚡ AI Lesson 2h ago

Making RAG Accurate in Python

Improving retrieval quality beyond cosine top-k: hybrid dense+BM25 search with Reciprocal Rank Fusion, metadata filtering, chunking strategy, and measuring reca

Dev.to · Puneet Gupta 🔍 RAG & Vector Search ⚡ AI Lesson 2h ago

Making RAG Accurate in Java

Improving retrieval quality beyond cosine top-k: hybrid dense+BM25 search with Reciprocal Rank Fusion, metadata filtering, chunking strategy, and measuring reca

Dev.to · Puneet Gupta 🔍 RAG & Vector Search ⚡ AI Lesson 2h ago

RAG From Scratch in Python

Building retrieval-augmented generation from first principles in Python: chunking, embeddings, a hand-rolled cosine-similarity vector search, reranking, and whe

Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 5h ago

What Is RAG (Retrieval-Augmented Generation)? Explained Like You’re Five

Not all ghosts are scary — some just need a good library card.  Continue reading on CodeToDeploy »

Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 6h ago

Assemble Each RAG Generation Prompt from a Base Prompt Plus the Rules Each Question Needs

Enterprise Document Intelligence [Vol.1 #8B] - A fixed BASE, the rules each question needs, one registry: the dispatcher that turns a parsed question into a typ

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 17h ago

Enterprise Knowledge Graph: A CTO’s Playbook for AI That Understands Your Business

Core Concepts: Understanding the Enterprise Knowledge Graph Continue reading on Medium »

Dev.to · Pirate Prentice 🔍 RAG & Vector Search ⚡ AI Lesson 20h ago

n8n Question and Answer Chain Node: Build Retrieval-Augmented Workflows with Any Document [Free Workflow JSON]

The Question and Answer Chain node is n8n's built-in RAG (Retrieval-Augmented Generation) node. You...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 20h ago

PixelRAG: When Retrieval Stops Reading Text and Starts Seeing Pages

PixelRAG replaces text-based retrieval with visual page embeddings — it renders documents as screenshots, retrieves image tiles instead of… Continue reading on

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

KNN vs. HNSW: Choosing the Right Nearest-Neighbor Algorithm for Your RAG Pipeline

If you’ve built a RAG pipeline, a recommendation engine, or a semantic search feature in the last two years, you’ve made a… Continue reading on Medium »

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

AnswerSurvivalRAG: What Happens When RAG Finds the Answer, Then Drops It?

Many RAG systems fail in ways that are easy to miss. Continue reading on Medium »

Dev.to · Melissa D. Ellison 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago

A RAG evaluator that admits what it can't judge

Fail-closed groundedness, deterministic corroborators, and a self-test — because an evaluator should...

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago

RAG on Google Cloud in Regulated Environments: A Lifecycle Playbook from Inception to…

Retrieval-Augmented Generation is not “put documents in a vector database and call an LLM.” In a regulated enterprise — PHI, PCI… Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

Solving One of the Hardest Problems in Code RAG: Context Retrieval

While building a code-based RAG system for automation code generation, I ran into an interesting challenge. Continue reading on Medium »

Dev.to · Suman Nath 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

Practical RAG, Part 1: The Simplest RAG That Actually Works

Build a working Retrieval-Augmented Generation pipeline from scratch in ~40 lines of Python — then see exactly where it breaks. Part 1 of a hands-on series.

Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

What Is Retrieval-Augmented Generation (RAG)? A Complete Guide for Businesses

How to get accurate, source-backed answers out of AI — instead of confident guesses. Continue reading on Medium »

Dev.to · Oluwagbade Odimayo 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

I Built a Biomedical RAG System, and a 40-Year-Old Algorithm Beat My Vector Database

A hands-on walkthrough of a retrieval-augmented QA pipeline over PubMed abstracts, the evaluation...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

Building a Vector Search Assistant: What I Learned from Module 2

When I first started learning about Retrieval-Augmented Generation, search felt like the simple part. You ask a question, look up the… Continue reading on Mediu

Reddit r/LocalLLaMA 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

What's in your RAG?

I want to up my game, with RAG. I tested it ages ago, but haven't found a usecase. I play with coding, projects, and light sysadmin work. # Thoughts RFC library

Dev.to · Kunal Garg 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

What is RAG ? | Completely Explained in 10 Minutes | Hindi

Hearing "RAG" everywhere in AI but not 100% sure how it works? 🤔 I just put together a quick...

Dev.to · Ahmet Özel 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

AutoRAG vs RAGBuilder vs Red Hat AutoRAG: Which RAG Pipeline Wins on YOUR Data (and Their Shared OCR Blind Spot)

Want to build an AI assistant that talks to your company documents? First you need to answer one...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

The RAG Tax: Why Your Retrieval Pipeline Costs More Than the Model

Everyone budgets for inference; nobody budgets for re-embedding, chunk sprawl, re-indexing, and vector-store ops. The model is the cheap… Continue reading on Si

Dev.to · ping wang 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

How to Debug RAG Hallucinations: Building Semantic Observability for Production AI

Learn how to build semantic observability for production RAG systems to catch hallucinations and irrelevant responses before users notice.

Dev.to · Austin Vance 🔍 RAG & Vector Search ⚡ AI Lesson 3d ago

Your RAG Pipeline Hallucinates Because It Never Checks Its Own Work

Build a corrective RAG pipeline with LangGraph that grades retrieval quality, rewrites bad queries, and generates cited answers.

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Salesforce Agentforce and Basic Terminology (RAG, Grounding, Context Variables, Hybrid Search)

Salesforce defines Agentforce as a suite of autonomous, AI-driven digital workers that augment employees and enhance customer experiences… Continue reading on M

InfoQ AI/ML 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Presentation: Graph RAG: Building Smarter Retrieval Workflows with Knowledge Graphs

Cassie Shum discusses the architectural evolution of GraphRAG and why data foundations are critical for advanced AI workflows. She explains how traditional vect

Search Engine Land 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

GraphRAG: What entity-first retrieval means for SEO

GraphRAG explains why AI is shifting from isolated text to connected knowledge, and what that means for AI search optimization.

Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

When “Smart” Parsers Fail: Building a Hallucination-Resistant RAG System for the Constitution of…

A case study in why deterministic engineering sometimes beats expensive AI Continue reading on Medium »

Dev.to · Dumebi Okolo 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Semantic Observability: Engineering Reliability for Production RAG

It is a noticeable thing when a microservice fails. It is either a null pointer exception in a Java...

Dev.to · Vectorlink Labs 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Stale RAG vs. expensive RAG: how to cache RAG context without serving outdated answers

If you run a RAG system in production, you eventually hit a dilemma that has nothing to do with your...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

When RAG Outperforms Fine-Tuning in Real AI Projects | A Practical Guide

Explore the practical differences between RAG and fine-tuning, understand when each approach works best and build more reliable AI apps. Continue reading on Med

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Your RAG System Is Lying to You in Production

14 silent killers — why they happen, where they hide, and exactly how to fix them before they destroy user trust Continue reading on Medium »

Dev.to · lorismascio17 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Why vector-only RAG is weak for coding agents

Building Droste: a local structural + semantic code-memory engine for MCP agents AI coding agents...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

RAG Evaluation: The Part Nobody Talks About When Building RAG Systems

When I finished building my first RAG pipeline, I felt good about it. Continue reading on Medium »

Dev.to · Marketing wizr 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

RAG Is Not a Feature. It's a System, and These Are the Parts Nobody Demos.

Retrieval-Augmented Generation demos beautifully. Embed your documents, run a similarity search, drop...

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

What Is RAG? The AI Technology That Makes ChatGPT Smarter Without Retraining

Large Language Models are incredibly powerful — but they have a major limitation. Retrieval-Augmented Generation (RAG) is changing that by… Continue reading on

Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı

Bir RAG sistemi kurdunuz. Her şey harika çalışıyor, dokümanlar doğru geliyor, LLM güzel cevaplar veriyor… Ta ki ilk gerçek kullanıcılar… Continue reading on Med

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı

Bir RAG sistemi kurdunuz. Her şey harika çalışıyor, dokümanlar doğru geliyor, LLM güzel cevaplar veriyor… Ta ki ilk gerçek kullanıcılar… Continue reading on Med

ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 4d ago

One Retrieval to Cover Them All: Co-occurrence-Aware Knowledge Base Reorganization for Session-Level RAG

arXiv:2606.31156v1 Announce Type: cross Abstract: RAG systems retrieve documents optimized for answering one query at a time. Yet enterprise users arrive with s

Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On

Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On

Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med

Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 4d ago

Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On

Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med

Medium · Programming 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

Why you shouldn’t search your documents directly with AI

Everyone’s first retrieval-augmented system looks the same: chop the documents into pieces, turn each piece into a vector, search the… Continue reading on Mediu

Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

From Traditional RAG to Agentic RAG

Traditional RAG systems typically rely on a predefined retrieval pipeline. Continue reading on Medium »

Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

Your AI Keeps Making Things Up. RAG Is How You Make It Use Real Facts Instead.

You ask an AI a question about your own company’s policy, and it answers — confidently, fluently, and completely wrong. It invented a… Continue reading on Mediu

Dev.to · AlaiKrm 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

Why Your RAG System Needs Hybrid Search (And How to Actually Implement It)

Vector similarity search is powerful but it has a well-known weakness: exact term matching. If a user...

ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 5d ago

Covering the Unseen: Information Demand Coverage Optimization for Retrieval-Augmented Generation

arXiv:2606.29328v1 Announce Type: cross Abstract: Retrieval-augmented generation (RAG) typically treats context selection as ranking chunks against a single que

Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…

Last week we compressed retrieved chunks so the model receives only the sentences that matter. Continue reading on Operations Research Bit »

Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 5d ago

Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…

Last week we compressed retrieved chunks so the model receives only the sentences that matter. Continue reading on Operations Research Bit »