Sebastian Raschka
LLM research engineer; from-scratch LLM book, articles, and architecture notes.
Sebastian Raschka is an LLM research engineer (ex-Lightning AI, former statistics professor at UW-Madison) and author of “Build a Large Language Model (From Scratch)” and “Build a Reasoning Model From Scratch”. His site indexes the Ahead of AI newsletter: long-form articles (controlling reasoning effort in LLMs, using local coding agents with open-weight models, building an AI text detector from scratch, curated LLM paper lists) plus short architecture notes on new models (Kimi K3, Muse Glimmer 30B, how Claude’s text watermarking works). Consistently one of the better free technical explainers out there.
Source: https://sebastianraschka.com/