The opposite of a black box.
AI Glassbox makes machine learning visible, playable, and understandable. You write real programs in Spectra — a friendly language built just for learning AI — and watch a model train, predict, and explain itself, one visible step at a time. Alongside the Studio are live simulations of the big ideas and a Gallery of apps other learners have built and shared. It’s made for grades 4–8, but anyone curious about how AI really works is welcome. Everything runs in your browser: nothing to install, nothing to upload.
Safe by design
No internet from student code, no external APIs, no uploads ever, synthetic data only.
Real, not fake
Every algorithm does the actual thing — just smaller and clearer. College ideas, middle-school steps.
See the gears
Watch a model train, a loss curve drop, a boundary bend. The machinery is the lesson.
Free forever
All learning is free, no ads. Funded by donations and an optional Capstone credential.
Made by SenSym™
AI Glassbox is a product of SenSym, LLC, and its home is glassbox.sensym.ai. It is a sibling to Arcadia, our learn-to-read platform — built on the same belief that powerful ideas deserve a calm, kid-first home, and the same promise that nothing a child does here ever leaves the browser. The two are separate products that grow on their own, but they share one philosophy: teach the real thing, safely, and keep learning free.