Core AI

RAG & Vector Search

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

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Chunk documents with LangChain or LlamaIndex

Set up Pinecone, Weaviate, or pgvector

Run RAGAS evaluation on a RAG pipeline

Build a hybrid BM25 + dense retrieval pipeline

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All Reads (680) Articles (192)Blog Posts (418)Tutorials (68)Research Papers (2)

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I built a free web scraping API with 5,000 requests/month

Dev.to · stabem 🔍 RAG & Vector Search 4mo ago

I built a free web scraping API with 5,000 requests/month

Hey DEV community! 👋 Six months ago, I was building a RAG pipeline for a side project and hit a wall...

Build a RAG Pipeline in 5 Minutes with Python (No Scraping Headaches)

Dev.to · stabem 🔍 RAG & Vector Search 4mo ago

Build a RAG Pipeline in 5 Minutes with Python (No Scraping Headaches)

If you've built a RAG (Retrieval Augmented Generation) pipeline, you know the dirty secret: 90% of...

Build a RAG System from Scratch: Create an AI That Answers Questions About Your Codebase

Dev.to · Paul Robertson 🔍 RAG & Vector Search 4mo ago

Build a RAG System from Scratch: Create an AI That Answers Questions About Your Codebase

Learn to build a complete Retrieval-Augmented Generation system that can answer questions about your codebase using vector embeddings, ChromaDB, and OpenAI's AP

Semantic Search in C# Without Python

Dev.to · Ólafur Aron Jóhannsson 🔍 RAG & Vector Search 4mo ago

Semantic Search in C# Without Python

Semantic Search in C# — Without a Vector Database Keyword search finds documents that...

Native Auditing Architecture: Embedding Traceability Intelligence within the Database Core.

Dev.to · Isabelly Arruda 🔍 RAG & Vector Search 4mo ago

Native Auditing Architecture: Embedding Traceability Intelligence within the Database Core.

1. INTRODUCTION In the current information systems landscape, ensuring data integrity and...

Chatting with 3 Billion Base Pairs: Building a RAG Index for Your Personal Genome (WGS)

Dev.to · Beck_Moulton 🔍 RAG & Vector Search 4mo ago

Chatting with 3 Billion Base Pairs: Building a RAG Index for Your Personal Genome (WGS)

Have you ever stared at a 100GB .vcf file and wondered, "Somewhere in here, is there a reason why I...

Building an AI - Powered Portfolio: A Developer's Journey

Dev.to · Roy amit 🔍 RAG & Vector Search 4mo ago

Building an AI - Powered Portfolio: A Developer's Journey

Building an AI portfolio from scratch using Next.js, FastAPI, and RAG. A deep dive into the architectural decisions, technical challenges, and lessons learned a

Building Hybrid Search for RAG: Combining pgvector and Full-Text Search with Reciprocal Rank Fusion

Dev.to · Lucas 🔍 RAG & Vector Search 4mo ago

Building Hybrid Search for RAG: Combining pgvector and Full-Text Search with Reciprocal Rank Fusion

Most RAG tutorials show you the happy path: embed your documents, store them in a vector database, do...

Navigating the RAG Architecture Landscape: A Practitioner’s Guide

Dev.to · ruchika bhat 🔍 RAG & Vector Search 4mo ago

Navigating the RAG Architecture Landscape: A Practitioner’s Guide

Retrieval-Augmented Generation (RAG) has evolved from a single blueprint into a diverse ecosystem of...

How We Built a Vector Database for SEC Filings Using PostgreSQL + pgvector

Dev.to · Yash Joshi 🔍 RAG & Vector Search 4mo ago

How We Built a Vector Database for SEC Filings Using PostgreSQL + pgvector

The Challenge: Making 250-Page Documents Searchable by Meaning. In Part 1, I showed you QuantTrade...

How to Use Laravel AI SDK in Production: Agents, Tools, Streaming & RAG

Dev.to · Martin Tonev 🔍 RAG & Vector Search 4mo ago

How to Use Laravel AI SDK in Production: Agents, Tools, Streaming & RAG

1) What “Laravel AI” actually is Laravel split AI into three first-party pieces: ...

🚀 Stop Hallucinating! Build a RAG Chatbot in 5 Minutes with LangChain

Dev.to · Ananya S 🔍 RAG & Vector Search 4mo ago

🚀 Stop Hallucinating! Build a RAG Chatbot in 5 Minutes with LangChain

Ever asked an AI about something that happened yesterday, only for it to confidently lie to your...

Building Production RAG Without LangChain

Dev.to · Chunk Tort 🔍 RAG & Vector Search 4mo ago

Building Production RAG Without LangChain

Building Production RAG Without LangChain I spent 4 months building a production RAG...

I Built a Python CLI Tool for RAG Over Any Document Folder

Dev.to · LukaszGrochal 🔍 RAG & Vector Search 4mo ago

I Built a Python CLI Tool for RAG Over Any Document Folder

A zero-config command-line tool for retrieval-augmented generation — index a folder, ask questions,...

Building a High-Performance Vector Database in Rust from Scratch 🦀

Dev.to · Rafael Ferres 🔍 RAG & Vector Search 4mo ago

Building a High-Performance Vector Database in Rust from Scratch 🦀

Introduction Recently, I’ve been heads-down developing FerresDB Core, a high-performance...

Stop Guessing Your Health! Build a "Personal Health Oracle" using RAG, Pinecone, and PubMed

Dev.to · Beck_Moulton 🔍 RAG & Vector Search 4mo ago

Stop Guessing Your Health! Build a "Personal Health Oracle" using RAG, Pinecone, and PubMed

Have you ever asked an AI for medical advice only to receive a generic "consult a physician" or,...

I Built a RAG Application from Scratch - Here's the Real Cost and Performance Data

Dev.to · Maheshnath09 🔍 RAG & Vector Search 4mo ago

I Built a RAG Application from Scratch - Here's the Real Cost and Performance Data

An honest breakdown of building a production RAG system with LangChain vs LlamaIndex, actual API costs, and performance benchmarks

Building a Production-Ready RAG System with Incremental Indexing

Dev.to · Aayush Gupta 🔍 RAG & Vector Search 4mo ago

Building a Production-Ready RAG System with Incremental Indexing

A comprehensive guide to building a Retrieval-Augmented Generation (RAG) system that efficiently...

Actualización de embeddings en producción con LangChain + pgvector

Dev.to · David Felipe Camargo Polo 🔍 RAG & Vector Search 4mo ago

Actualización de embeddings en producción con LangChain + pgvector

Cuando tu pipeline de RAG está en producción, lo más común no es “cambiar el modelo”, sino algo más...

How We Built a 99% Accurate Invoice Processing System Using OCR and LLMs

Dev.to · Vaibhav Rathi 🔍 RAG & Vector Search 4mo ago

How We Built a 99% Accurate Invoice Processing System Using OCR and LLMs

We had a working RAG solution at 91% accuracy. Here's why we rebuilt it with fine-tuning and what we...

Vector Databases for Developers (With a Simple Python Example)

Dev.to · Shreekansha 🔍 RAG & Vector Search 4mo ago

Vector Databases for Developers (With a Simple Python Example)

Why embeddings matter and how modern AI systems search meaning, not keywords. For decades, software...

I Spent $400/Month on a Reranker That Made My RAG Worse

Dev.to · Jon 🔍 RAG & Vector Search 4mo ago

I Spent $400/Month on a Reranker That Made My RAG Worse

A cautionary tale about adding rerankers to fix bad retrieval - and the $400/month lesson I learned

Introducing gdpr-safe-rag: Build GDPR-Compliant RAG Systems in Minutes

Dev.to · Charles Nwankpa 🔍 RAG & Vector Search 4mo ago

Introducing gdpr-safe-rag: Build GDPR-Compliant RAG Systems in Minutes

After spending 9 months building production AI systems for UK organisations—including...

🥽 Deep Dive: Understanding Contextual Recall 🎯 in RAG Systems

Dev.to · Kairus Noah Tecson 🔍 RAG & Vector Search 4mo ago

🥽 Deep Dive: Understanding Contextual Recall 🎯 in RAG Systems

Definition & Calculation Contextual Recall measures the semantic completeness of your...

Understanding Semantic Search: Vector Embeddings and Similarity Search

Dev.to · Ryan Giggs 🔍 RAG & Vector Search 4mo ago

Understanding Semantic Search: Vector Embeddings and Similarity Search

Semantic search represents a fundamental shift in how we retrieve information from databases and...

Building a Production-Ready Healthcare RAG System: A Complete Guide

Dev.to · Nourhan Ali 🔍 RAG & Vector Search 4mo ago

Building a Production-Ready Healthcare RAG System: A Complete Guide

Building a Production-Ready Healthcare RAG System: A Complete Guide Healthcare...

NeuronDB Vector vs pgvector: Technical Comparison

Dev.to · NeuronDB Support 🔍 RAG & Vector Search 4mo ago

NeuronDB Vector vs pgvector: Technical Comparison

You store embeddings as vectors. You run a similarity search inside PostgreSQL. Two extensions matter...

How to Build Long-Term Memory for LLMs (RAG + FAISS Tutorial)

Dev.to · Devendra Parihar 🔍 RAG & Vector Search 4mo ago

How to Build Long-Term Memory for LLMs (RAG + FAISS Tutorial)

Build a memory system that lets LLMs remember user preferences across conversations using Python,...

Full-Duplex Voice AI in JavaScript: Building Real-Time Conversational Apps With Open Source Models

Dev.to · JSGuruJobs 🔍 RAG & Vector Search 5mo ago

Full-Duplex Voice AI in JavaScript: Building Real-Time Conversational Apps With Open Source Models

NVIDIA's PersonaPlex-7B and FlashLabs Chroma 1.0 dropped last week. Both open source. Both change how...

GenAI #2: What are Vector Databases?

Dev.to · An Vo 🔍 RAG & Vector Search 5mo ago

GenAI #2: What are Vector Databases?

What is a Vector? A vector is a list of numbers that represents something (text, image,...

From Web to Vector: Building RAG Pipelines

Dev.to · Lalit Mishra 🔍 RAG & Vector Search 5mo ago

From Web to Vector: Building RAG Pipelines

1. The "Garbage In, Garbage Out" Reality of RAG In the rush to adopt Generative AI, a...

Build Your Own AI Story Generator with RAG - Part 3: Generating Stories

Dev.to · Nam Tran 🔍 RAG & Vector Search 5mo ago

Build Your Own AI Story Generator with RAG - Part 3: Generating Stories

We've built our RAG pipeline (Part 1, Part 2). Now let's use it to generate stories. In this final...

Build Your Own AI Story Generator with RAG - Part 2: Building the RAG Pipeline

Dev.to · Nam Tran 🔍 RAG & Vector Search 5mo ago

Build Your Own AI Story Generator with RAG - Part 2: Building the RAG Pipeline

In Part 1, we learned what RAG is, compared it to alternatives, and understood its pros, cons, and...

Is Your RAG System Leaking Data? 5 Minute Security Check

Dev.to · Joshua Gracie 🔍 RAG & Vector Search 5mo ago

Is Your RAG System Leaking Data? 5 Minute Security Check

RAG (Retrieval-Augmented Generation) is everywhere. Every company with an AI strategy is building...

Building Agentbase: An Open Source RAG Platform with Next.js, FastAPI, and Agno

Dev.to · Harish Kotra (he/him) 🔍 RAG & Vector Search 5mo ago

Building Agentbase: An Open Source RAG Platform with Next.js, FastAPI, and Agno

In this post, we'll dive into how we built Agentbase, a full-stack platform that lets anyone build,...

Why My Second RAG System Was Built in Rails, Not Python’s FastAPI

Dev.to · Ganesh Navale 🔍 RAG & Vector Search 5mo ago

Why My Second RAG System Was Built in Rails, Not Python’s FastAPI

Built the same RAG system in FastAPI and Ruby on Rails. FastAPI took weeks, Rails took 24 hours....

Vector Embeddings (with OpenAI and Supabase) - Part 3 (storing & searching)

Dev.to · Shloka 🔍 RAG & Vector Search 5mo ago

Vector Embeddings (with OpenAI and Supabase) - Part 3 (storing & searching)

Hey there! In the last two blogs, we talked about what vector embeddings are and how to set up OpenAI...

Rack-style middleware for vector databases in Ruby: vectra-client 1.1.0

Dev.to · Stokry 🔍 RAG & Vector Search 5mo ago

Rack-style middleware for vector databases in Ruby: vectra-client 1.1.0

If you’re building serious AI features in Ruby (semantic search, RAG, recommendations), you quickly...

Building a Serverless GenAI Chatbot using Amazon Bedrock & Amazon Kendra (Hands-on RAG Workshop)

Dev.to · Subhash Bohra 🔍 RAG & Vector Search 5mo ago

Building a Serverless GenAI Chatbot using Amazon Bedrock & Amazon Kendra (Hands-on RAG Workshop)

🚀 Building a Serverless GenAI Chatbot using Amazon Bedrock & Amazon Kendra Generative...

From Raw DNA to Deep Insights: Building a Personal Genomics RAG with LangChain and PubMed

Dev.to · Beck_Moulton 🔍 RAG & Vector Search 5mo ago

From Raw DNA to Deep Insights: Building a Personal Genomics RAG with LangChain and PubMed

Ever looked at your 23andMe raw data and thought, "What does rs1801133 actually mean for my health?"...

How I Built a Production AI Chatbot (That Actually Handles Complexity)

Dev.to · Rizwanul Islam 🔍 RAG & Vector Search 5mo ago

How I Built a Production AI Chatbot (That Actually Handles Complexity)

A deep dive into building Gaari's AI assistant with Next.js, OpenAI, and RAG.

The Limitations of Text Embeddings in RAG Applications: A Deep Engineering Dive

Dev.to · Kumar Kislay 🔍 RAG & Vector Search 5mo ago

The Limitations of Text Embeddings in RAG Applications: A Deep Engineering Dive

TL;DR We have all been there. You follow the tutorial, spin up a vector database, ingest your...

How I Designed an Enterprise RAG System Using AWS Bedrock, Pinecone & Neo4j

Dev.to · Betty Waiyego 🔍 RAG & Vector Search 5mo ago

How I Designed an Enterprise RAG System Using AWS Bedrock, Pinecone & Neo4j

AI Agent Building Project Overview In my role as an AI Solutions Engineer at...

Vector Database (OpenAI and Supabase )-Part 2 (Setup)

Dev.to · Shloka 🔍 RAG & Vector Search 5mo ago

Vector Database (OpenAI and Supabase )-Part 2 (Setup)

Remember how I said there were only going to be 2 parts to “Vector Databases (with Supabase and...

Vector Databases (with OpenAI and Supabase) - Part 1

Dev.to · Shloka 🔍 RAG & Vector Search 5mo ago

Vector Databases (with OpenAI and Supabase) - Part 1

It’s the early 2010s, Apple Music (iTunes) is strongly dominating the market. And services like...

Vectra — The Unified Vector Database Client for Ruby

Dev.to · Stokry 🔍 RAG & Vector Search 5mo ago

Vectra — The Unified Vector Database Client for Ruby

If you've ever built AI applications in Ruby — semantic search, RAG, recommendation engines, or...

RAG without the cloud: .NET + Semantic Kernel + Ollama on your laptop

Dev.to · Frank Noorloos 🔍 RAG & Vector Search 5mo ago

RAG without the cloud: .NET + Semantic Kernel + Ollama on your laptop

1. Introduction Generative AI is now impossible to ignore in software development. Tools...

I Built a Production RAG System in 3 Weeks - Here's What Actually Broke

Dev.to · BLESSEDEFEM 🔍 RAG & Vector Search 5mo ago

I Built a Production RAG System in 3 Weeks - Here's What Actually Broke

The Wake-Up Call I deployed my first AI system to production. Within the first hour, it crashed...