Building a RAG System That Actually Works: Chunking, Vector Engines, and Testing
Most RAG tutorials stop at 'put vectors in a database.' This post covers what actually determines quality: how you chunk documents, which vector search engine to pick, and how to measure and iterate on retrieval performance using Bedrock Knowledge Bases and LLM-as-judge evaluation.
World Monitor: How Open-Source OSINT Is Democratizing Global Intelligence
A deep dive into World Monitor â an open-source intelligence dashboard that aggregates 150+ feeds, 40+ geospatial layers, and AI-powered analysis into a real-time situational awareness platform. What OSINT is, how these platforms work under the hood, and why it matters now more than ever.
LLM Architecture Explained Simply: 10 Questions From Prompt to Token
A beginner-friendly walkthrough of how an LLM actually works end-to-end: from typing a prompt to receiving a response â covering tokenization, embeddings, Transformer layers, KV cache, the training loop, embeddings for search, and why decoder-only models won.
LLM Inference Demystified: PagedAttention, KV Cache, MoE & Continuous Batching
The 5 key concepts every cloud architect should know about LLM serving: PagedAttention, KV cache mechanics, continuous batching, MoE trade-offs, and real production numbers.
LLM Distillation vs Quantization: Making Models Smaller, Smarter, Cheaper
Two strategies to shrink LLMs â one compresses weights, the other transfers knowledge. A practical guide to distillation and quantization: when to use each, how to implement them with Hugging Face, and why the real answer is both.
TFLOPS: The GPU Metric Every AI Engineer Should Understand
What TFLOPS actually measures, why FP16 matters for LLMs, and why the most important GPU bottleneck for inference isn't compute at all.
Getting Hands-On with Mistral AI: From API to Self-Hosted in One Afternoon
A practical walkthrough of two paths to working with Mistral â the managed API for fast prototyping and self-hosted deployment for full control â with real code covering prompting, model selection, function calling, RAG, and INT8 quantization.
Python, Transformers, and SageMaker: A Practical Guide for Cloud Engineers
Everything a cloud/AWS engineer needs to know about Python, the Hugging Face Transformers framework, SageMaker integration, quantization, CUDA, and AWS Inferentia â without being a data scientist.
Transformer Anatomy: Attention + FFN Demystified
A deep dive into the Transformer architecture â how attention connects tokens and why the Feed-Forward Network is the real brain of the model. Plus the key to understanding Mixture of Experts (MoE).
Fine-Tuning Mistral with Transformers and Serving with vLLM on AWS
End-to-end guide: fine-tune Mistral models with LoRA using Hugging Face Transformers, then deploy at scale with vLLM on AWS â from training to production serving on SageMaker, ECS, or Bedrock.
How LLMs Learn to Behave: RLHF, Reward Models, and the Alignment Problem
A practical walkthrough of how large language models are aligned with human values â from collecting feedback to PPO optimization and the reward hacking pitfalls.
A Practical Guide to Fine-Tuning LLMs: From Full Training to LoRA
Understand how LLM fine-tuning works, when to use it, and how to choose between full fine-tuning, LoRA, soft prompts, and other PEFT methods.