3Level 3 · Prepares round 3 of the league

Build things with AI

Four working programs, all in one workspace: a text classifier, a webcam recogniser, a language model, and a model that predicts from a table.

≈ 10 hoursThe block workspace on this siteBlocks and spreadsheetsProgramming and AI with blocks

Start Level 3

What is inside

13 readings, 8 hands on exercises, and 2 quizzes across 4 modules.

You will be able to

Build a text classifier with a confidence gate that can say it does not know.
Train an image recogniser from webcam photos and test it on somebody else's hand.
Explain what a model does with a picture, in terms of parts rather than pixels.
Build a language model from word counts, and say why greedy generation loops.
Train a model on a table and beat the baseline you worked out first.
Produce a submission file in the format a competition round is scored on.

League round 3

Inside the Model

Round 3 covers exactly this level. Opens 19 March 2027, Friday to Sunday, pick your own slot.

How the season works

Who it is for

You finished Level 2, where you trained an image model in the in-page image lab, and you have never written code. Every project in this level uses this site's blocks, which turn into Python you can read and download. The camera projects also use your browser's camera.

Try it in blocks

Open the block editor

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Build things with AI

What is inside

Optional: Under the hood