Skills served: Analytical thinking, Programming.
4 courses, 4 free anywhere in the world, 0 free only in Australia, checked 7 October 2026. 4 courses on data and machine learning from 4 providers. The highest rated is Building AI from University of Helsinki at 4.3 out of 5.
Courses on how machine learning models are built and trained: data, regression and classification, neural networks and the maths behind them. Most expect some Python.
Part two of Elements of AI: how the algorithms behind AI actually work, from optimisation and probability to machine learning and neural networks, with optional coding exercises in Python for those who want them.
| Course | Our rating | Cost | Time | Credential |
|---|---|---|---|---|
| Building AI | 4.3 / 5 | Free | Time not stated | certificate of completion (free) |
| CS50's Introduction to Artificial Intelligence with Python | 4.0 / 5 | Free | Time not stated | certificate of completion (free) |
| Google ML Crash Course | 3.4 / 5 | Free | Time not stated | No credential |
| Practical Deep Learning for Coders | 3.4 / 5 | Free | 13.5 hours | No credential |
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Part two of Elements of AI: how the algorithms behind AI actually work, from optimisation and probability to machine learning and neural networks, with optional coding exercises in Python for those who want them. Free, from the same team as the introduction course already listed.
Harvard's seven-week course on the concepts and algorithms behind modern AI: graph search, knowledge, uncertainty, optimisation, machine learning, neural networks and language, each with a hands-on Python project. Free via OpenCourseWare with a free CS50 certificate; the edX verified certificate is optional and paid.
Google's own introduction to machine learning, from linear and logistic regression through neural networks, embeddings and large language models to production systems and fairness. It is hands-on and assumes some Python and maths, so it suits people moving from using AI to understanding how models are built.
The one technical pick: a free, highly regarded hands-on course that teaches coders to build and deploy deep learning models from the first lesson. It was recorded at the University of Queensland and favours practical results over theory.
ApplyAI lists 4 free data and machine learning courses from 4 providers. The top pick is Building AI from University of Helsinki (free, rated 4.3 out of 5).
Start with Building AI from University of Helsinki (free, rated 4.3 out of 5). If you want a matched pick, take the free AI Adaptation Profile first.
4 of the 4 data and machine learning courses we rate are fully free, as at our last check.
Practical Deep Learning for Coders from fast.ai, at about 13.5 hours.
2 courses give a free certificate. The highest rated are Building AI, CS50's Introduction to Artificial Intelligence with Python.
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