Hybrid Search RAG That Actually Works: BM25 + Vectors + Reranking in Python
Author(s): Tarun Singh Originally published on Towards AI. Fix “dumb RAG” using hybrid retrieval and a lightweight reranker pipeline. If your RAG app is “kind of okay” but randomly wrong, you don’t have an LLM problem. The fix is simple and powerful:This …
The AI Models That Will Replace GPT-5: What You Need to Know About DeepSeek-R1 & o3-mini
Author(s): Tarun Singh Originally published on Towards AI. Why the future of AI isn’t bigger models — it’s smarter reasoning. TL;DR: Reasoning models are the next jump after “just bigger LLMs.” Instead of prompt tricks, they win with reinforcement learning on verifiable …
Reasoning Models Are Eating AI: DeepSeek-R1, o3-mini & the RL Playbook
Author(s): Tarun Singh Originally published on Towards AI. Why the future of AI isn’t bigger models — it’s smarter reasoning. TL;DR: Reasoning models are the next jump after “just bigger LLMs.” Instead of prompt tricks, they win with reinforcement learning on verifiable …
AI Security 2025: Promptware, Indirect Prompt Injection & the First “AI Worms” (with a Python Mitigation Kit)
Author(s): Tarun Singh Originally published on Towards AI. AI Security 2025: Promptware, Indirect Prompt Injection & the First “AI Worms” (with a Python Mitigation Kit) I broke a Python AI agent with prompt injection, then hardened it until the attack failed. In …
Build a Production Voice Agent This Weekend: Realtime API + MCP + SIP (Step-by-Step)
Author(s): Tarun Singh Originally published on Towards AI. AI That Picks Up the Phone: Realtime Voice Agents with SIP, MCP, and WebRTC TL;DR: In this hands-on guide you’ll ship a fully working Realtime API voice agent with WebRTC speech-in/speech-out, server-executed MCP-style tools, …
On-Device AI Is Finally Real — Build a Copilot+ PC App That Runs 100% Offline
Author(s): Tarun Singh Originally published on Towards AI. On-device AI, explained in plain English — with a full working project you can run today. Github Repo: on-device-npu-rag On-Device AI Is Finally RealThe article discusses the advancements in on-device AI, focusing on building …
From Weekend Hack to Side Income: Python Automation with Flask
Author(s): Tarun Singh Originally published on Towards AI. A tiny Python automation tool (Flask + litellm) that classifies and summarizes text. Build a content AI service fast — an AI SaaS starter without the bloat. Your inbox floods with customer emails and …
googlLaptop-Only LLM: Tune Google Gemma 3 in Minutes (Code Inside)
Author(s): Tarun Singh Originally published on Towards AI. A clean, from-scratch walkthrough (with code) to tune a 270M-param LLM on chess — no cloud required. Google dropped Gemma 3 270M, a compact instruction-tuned model you can actually run locally. With 4-bit loading, …
Stop Wasting Chats: Prompt Like a Pro (2026 Field Guide for ChatGPT, LLMs & Prompt Engineering)
Author(s): Tarun Singh Originally published on Towards AI. Smarter prompts → sharper answers. A practical playbook you can use today. Most people treat ChatGPT like a search bar with an attitude. Treat it like a co-worker with tools — give it a …
Build an AI PDF Search Engine in a Weekend (Python, FAISS, RAG — Full Code)
Author(s): Tarun Singh Originally published on Towards AI. Turn messy folders of PDFs into a blazing-fast, AI-assisted knowledge base you can actually talk to. I had a problem: dozens (okay, hundreds) of PDFs — research papers, API docs, whitepapers — scattered across …
15 RAG Chunking Techniques Every AI Engineer Should Know
Author(s): Tarun Singh Originally published on Towards AI. Level Up Your RAG Apps: 15 Easy Chunking Strategies (with Examples!) Retrieval-Augmented Generation (RAG) depends heavily on how we chunk our data.If you want the LLM to retrieve context that actually makes sense, you …
RAG Chunking Techniques for Tabular Data: 10 Powerful Strategies
Author(s): Tarun Singh Originally published on Towards AI. Level Up Your RAG Apps: Table Edition 🚀 If you’ve built Retrieval-Augmented Generation (RAG) apps, you know chunking is EVERYTHING for great retrieval. This article explores effective strategies for chunking tabular data in Retrieval-Augmented …
Rotating Box Challenge: Why OpenAI GPT Beat DeepSeek and Qwen2.5 Hands Down
Author(s): Tarun Singh Originally published on Towards AI. This member-only story is on us. Upgrade to access all of Medium. Imagine a rotating box. Inside it, a ball bounces around, striking the walls, defying gravity, and never stepping out of bounds. Sounds …
Advanced Prompt Engineering Techniques for AI Developers: Unlocking the Power of LLMs
Author(s): Tarun Singh Originally published on Towards AI. This member-only story is on us. Upgrade to access all of Medium. In our data-driven world, the ability to extract and process information efficiently is more valuable than ever. Large Language Models (LLMs) like …
Mastering Data Extraction with LlamaExtract: JSON Outputs from PDFs, Payslips, and More
Author(s): Tarun Singh Originally published on Towards AI. This member-only story is on us. Upgrade to access all of Medium. In today’s fast-paced digital landscape, organizations deal with an overwhelming amount of unstructured data — from invoices and receipts to resumes and …
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