
Your first lesson is on its way
One lesson arrives each week: an idea derived on the page, code to run, and a measurement to check on a real model. Chapter 1 of the book is open now.
What happens next
Starting this week, you'll receive:
One lesson a week
A single idea derived on the page, a notebook to run, and the measurement to check it against.
Notes in between
Short findings from agentic coding and model work: what broke and what fixed it, posted as they land.
Experiments, start to finish
Evaluations, prompt injection, caching and latency, run on real models with the measurements kept.
Articles
What frontier work costs, how it changes teams and firms, and the places it breaks.

Check your email
The first two keep future lessons out of spam. The third one I read: it tells me what to teach next.
Chapter 1 is open now
No need to wait for Thursday. Every line of the chapter's code runs on Colab.

Chapter 1 · Runs on Colab
What a Model Call Is
Tokens, probabilities and sampling, derived on the page; then one explicit request to a model, run in a notebook you can open on Colab.
Read Chapter 1Discuss your work with other learners in the Prof Rod community.
There is also a paid cohort, described on its own page.
Where to start
Pick the one that fits, and I'll point you to three pieces for your first twenty minutes.
Talk soon,
Rod