Architecture
6 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 in 2026: What Each Solves and How They Fit Together
RAG is a technique for grounding answers in your data; MCP is a protocol for connecting models to tools and data. Build an MCP server and see where RAG fits.
News & Analysis
150M-Parameter BDH-CQ Scores 29.2% on ARC-AGI-1 at $0.0007 per Task
Pathway's 150M-parameter BDH-CQ model scores 29.2% pass@2 on ARC-AGI-1 at $0.0007 per task, trained on SageMaker HyperPod with H200 GPUs.
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.