AAI
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Everything you need to master AI
Modules, quizzes, progress tracking, and badges — all in one place, free to start. Pick a track and go.
Gradient Descent, step by step
Every module goes deep — intuition, math, and visuals together.
Concepts that actually stick
Every module builds intuition first — with diagrams, animations, and worked examples — before going deep. No walls of text, no hand-waving. By the end of each module you understand the why, not just the what.
Go to coursesTest your knowledge
What does gradient descent minimize?
Test yourself, not your patience
Each module ends with a timed quiz. Pick an answer, get instant feedback, and know exactly what you've understood — and what needs another pass. The quiz above is live — try it.
Go to quizzesTrack your growth
See everything at a glance
Every module read, every quiz taken, every active day — tracked in one place. Watch your completion bars fill across all four tracks. Your activity calendar shows streaks at a glance so you never lose momentum.
View my progressCompete & climb
Most Quizzes Completed
A little competition helps
See how you rank against other learners on quiz completions and course progress. Healthy competition keeps you coming back. Make it onto the board and stay there.
See leaderboardEarn your badges
Stay consistent. Earn your badges.
Complete all modules in a difficulty tier and earn a track-specific badge. Build your daily streak and turn learning into a habit you're proud of. Badges are unique per track — there's one for each level of every subject.
Compete. Code. Win.
AIThon is a monthly ML coding competition — write Python, submit predictions, and climb the live leaderboard. Free to enter.
* Free entry for Expert subscribers. Paid entry for others.
Write ML code in your browser
No setup, no installs — a full Python ML environment right in your browser.
Code ML, right in your browser
No installs, no setup. A full Python environment is provided — load the dataset, train your model, and submit predictions without leaving the page.
View competitionsSubmit predictions, get scored instantly
Upload your predictions CSV — they're scored against hidden test labels the moment you submit.
Submit and see your score immediately
Upload your predictions CSV and they're scored instantly against hidden test labels. Up to 5 submissions per problem — iterate, improve, and watch your score climb.
See how scoring worksClimb the leaderboard, win prizes
Monthly cash prizes for top finishers. Free to enter — all you need is your ML skills.
Compete live, win real prizes
The leaderboard updates in real-time as participants submit. Monthly cash prizes for top finishers — and it's free to enter. All you need is your ML skills.
Join next AIThonPractice. Build. Improve.
The Lab is a collection of real ML problems — read the statement, preview the data, write Python, and get scored instantly against hidden test labels.
Preview the dataset before you code
| age | income | edu_level | employed | label |
|---|---|---|---|---|
| 34 | 52000 | 3 | 1 | 1 |
| 27 | 38400 | 2 | 1 | 0 |
| 45 | 81000 | 4 | 1 | 1 |
| 22 | 19800 | 1 | 0 | 0 |
| 38 | 64500 | 3 | 1 | 1 |
| 51 | 97200 | 4 | 1 | 1 |
Inspect the training data before writing a single line of code — column types, distributions, and shape all visible upfront.
Understand the data before you code
Every problem includes a real training dataset you can preview right in the browser. Inspect columns, spot patterns, and plan your approach — all before writing a single line.
Browse Lab problemsBuild your model right in the browser
pandas, scikit-learn, XGBoost, LightGBM — all available. No pip install, no environment setup.
Write Python, no setup needed
pandas, scikit-learn, XGBoost, LightGBM — the full ML stack is available. Write your training script, submit predictions, and iterate without touching a terminal.
Try a problemIterate, improve, track your best
Every submission is scored against hidden test labels and saved. Your best score is always highlighted.
Every submission scored and saved
Predictions are scored instantly against hidden test labels. Your best score is always highlighted, and the full history lets you see exactly how your model improved over time.
Start practicingExplore Quizzes
Artificial Intelligence
Machine Learning
Deep Learning
Python for AI
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Your Learning Progress
Every quiz, challenge and course you complete is tracked — see how far you've come
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