I am joining as a founding buyer now. What do I actually get?
The founding price $539, locked in — the lowest this course will ever be — plus all 9 modules, lifetime access, certificate, private Discord, and a live kickoff workshop. The first 5 modules go live on 2026-06-15 and the final 4 on 2026-07-15. The first 20 founding buyers also get 1:1 time with Gui and a 1:1 harness-setup call. You take zero delivery risk: refund anytime before 2026-06-15, no questions.
When does the founding price close?
2026-06-14. The founding price $539 and the 1:1s disappear the moment the first modules go live. After that the price moves to $674, then to $899 once all nine modules ship on 2026-07-15.
Is the founding tier limited?
The founding price is open to everyone until 2026-06-14 — there is no seat cap, buy as a team if you like. The only limit is the 1:1s: the first 20 founding buyers get 1:1 time with Gui and a 1:1 setup call, because that is the most he can give real attention to. Every founding buyer still gets the live kickoff workshop. After 2026-06-14 the price moves to $674 without the 1:1s.
What is the refund policy?
For the founding cohort: 100% refund anytime before 2026-06-15, no questions, no forms, just email. You are paying for a position in the library that opens that day, and you can pull it back any time before it opens. After delivery starts, a standard 14-day window applies.
Can I get my company to pay for it?
Yes, and most learners do. This is professional training, so it usually goes through a learning and development or team budget, and plenty of people get it approved even without a formal one. The "Ask your company to pay for you" section above has a ready-to-send email template: copy it, fill in the brackets, and send it to your manager.
When do the modules ship?
Five modules go live on 2026-06-15: Agentic Foundations, Agentic EDA, Building MMMs with an Agent, Bayesian MMMs in Meridian, and Experimentation with an Agent. The final four — Attribution, Calibration & Triangulation, Evals, and Reusable Team Workflows — ship on 2026-07-15. Both dates are public, so you can hold the calendar to this page.
Why ship in two drops instead of all at once?
Two reasons. Honest one: it lets the product start delivering sooner instead of waiting for everything to be recorded. Pedagogical one: most learners cannot consume ten hours of dense MMM video in one weekend. The split lets you apply the first five modules on your own data before the rest land.
What does the price do over time?
$539 for the founding cohort through 2026-06-14. $674 from 2026-06-15 once the first modules ship. $899 from 2026-07-15 once all nine are live. Anyone who buys earlier keeps every later module, no upsell email.
Do I need to know MMM already?
Yes. This course assumes you have built a Marketing Mix Model before, or at least know what adstock, saturation, contribution, and DECOMP.RSSD mean. If you do not, start with Gui’s live Marketing Science Bootcamp on Maven first.
Do I need a paid subscription to Claude Code, Codex, or pi.dev?
You need access to at least one of them to follow along. The course shows how to set up project instructions for all three so you can pick the harness that fits your workflow and budget. None of the three are bundled with the course.
How do I know the agent is not making things up?
Every module ships with a self-grading harness for the agent’s output and a seven-question validation checklist you can rerun manually. The validation habit is the spine of the course, not an afterthought — module 08 turns it into automated evals.
Will this work with my data?
The course uses a synthetic multi-geo marketing dataset that mirrors the shape of real spend, revenue, and seasonality data. Practitioner-scenario exercises include messy variants so you have practice before you point an agent at your own data.
Who teaches it?
Guilherme Diaz-Berrio — author of Data Analytics for Marketing (Packt, 2024), 15+ years in marketing analytics, and instructor of the Marketing Science Bootcamp on Maven (rated 5.0 from 7 reviews). He has led measurement for €100M+ in ad spend.