Architecture
5 pieces on Architecture, including 2 step-by-step guides.
Guides
Designing a Production-Grade RAG Architecture
Large Language Models are powerful—but infamously unreliable when forced to guess. Learn how to build a production-grade RAG architecture that eliminates hallucinations through hybrid search, reranking, and structured ingestion.

RAG vs. MCP: What Every AI Developer Actually Needs to Know
Retrieval-Augmented Generation (RAG) and Model Context Protocol (MCP) are often discussed as competitors, but they solve entirely different problems. Learn when to reach for memory and when to reach for agency.
News & Analysis
GLM-5.3-Flash and Qwen3.8-Flash-Next Independently Hit the Same 3:1 Attention Ratio
Two Chinese AI labs independently converged on a 3:1 linear-to-full attention ratio, a 2048-token sparse budget, four gated residual streams, and Muon.
Harper 5.2 Beats Vercel Stack Up to 14× on Live Personalized Reads
Harper's benchmark across 474 load tests shows up to 14× latency advantage over a Vercel/Neon/Upstash/Ably stack on live, personalized-data paths.
Why Transformers Look the Way They Do: Deriving Q, K, and V
A step-by-step reconstruction of the Transformer shows that queries, keys, values, and W₀ are near-inevitable answers to concrete engineering problems.