Reading the Model: Qwen-Scope, Natural Language Autoencoders, and the Pivot to Useful LLM Interpretability
Qwen-Scope and Anthropic's Natural Language Autoencoders are reshaping LLM interpretability in 2026. Inside the two releases, what they ship, and where each breaks.
personRayZ·MAY 11, 2026
DeepSeek V4 and the Hybrid Attention Bet
Inside DeepSeek V4: hybrid attention (CSA + HCA), 1.6T MoE, 1M context, and the lineage from MLA to NSA to DSA that made it possible.
personRayZ·APR 27, 2026
AI Agents in Production: From Demo to Deployment in 2026
Learn the architecture, frameworks, and reliability patterns needed to deploy AI agents in production. Covers LangGraph, CrewAI, multi-agent systems, and more.
personRayZ·APR 23, 2026
RAG in 2026: From Vector Search to Context Engines and GraphRAG
Explore RAG in 2026: from naive vector search to GraphRAG, agentic retrieval, ColPali, and context engines. A deep technical guide for AI practitioners.
personRayZ·APR 23, 2026
The MCP Revolution: How Model Context Protocol Became the USB-C of AI
Learn how Model Context Protocol (MCP) became the universal standard for connecting AI models to tools and data, reshaping the entire AI ecosystem.
personRayZ·APR 22, 2026
Mechanistic Interpretability: Cracking Open the Black Box of AI
Mechanistic interpretability lets researchers reverse-engineer neural networks to understand how AI thinks. Learn about sparse autoencoders, circuits, and safety.
personRayZ·APR 15, 2026
LLM architecturemodel trainingscalingAI engineering16 min read
The Open-Source LLM Power Shift: How Qwen, DeepSeek, and Mistral Changed Everything
Explore how open-source LLMs like Qwen, DeepSeek, Mistral, and Nemotron closed the gap with proprietary models in 2025-2026, reshaping AI's competitive landscape.
personRayZ·APR 13, 2026
LLM architectureattention mechanismsmodel traininginference optimization20 min read
Inside DeepSeek: The Architecture Innovations That Shook the AI Industry
Explore DeepSeek's architecture breakthroughs: Multi-Head Latent Attention, auxiliary-loss-free MoE, FP8 training, and GRPO: frontier AI for $5.5M.
personRayZ·APR 6, 2026
model trainingdeep learningscalingAI agents19 min read
Reasoning Models: How LLMs Learned to Think Before They Speak
Explore how reasoning models like o1, o3, and DeepSeek-R1 use inference-time compute scaling and chain-of-thought to solve problems standard LLMs cannot.
personRayZ·APR 6, 2026
LLM architectureattention mechanismsdeep learningmodel training22 min read
Understanding Transformer Architectures from Scratch
Master the transformer architecture from first principles: self-attention, multi-head attention, positional encodings, encoder-decoder design, and modern innovations like RoPE, GQA, and SwiGLU, with code.
personRayZ·APR 6, 2026
LLM architectureattention mechanismsdeep learningscalinginference optimization22 min read
Mixture of Experts Demystified: Why Every Frontier Model Uses MoE Now
Learn how Mixture of Experts (MoE) powers frontier AI models like DeepSeek-V3 and Mixtral: sparse routing, load balancing, and why MoE beat dense scaling.
personRayZ·APR 6, 2026
LLM architectureinference optimizationdeep learningAI engineering18 min read
LLM Inference Optimization: The Engineering Behind Fast, Cheap AI
Master LLM inference optimization: speculative decoding, KV-cache compression, quantization, FlashAttention, and serving frameworks compared for fast, cost-effective AI.
personRayZ·APR 6, 2026
AI agentsAI engineering16 min read
Vibe Coding and the New AI-Assisted Development Stack
Explore vibe coding: the AI development paradigm coined by Karpathy. Compare Cursor, Claude Code, Google Antigravity & Copilot — with honest takes on which tools actually deliver.
personRayZ·APR 6, 2026