The best free 3Blue1Brown AI courses, curated
Grant Sanderson’s 3Blue1Brown makes the best visual math on the internet — and the math it teaches (neural networks, linear algebra, calculus) is exactly the foundation modern AI is built on. Below is a path that turns the intimidating math behind ML into something you can actually see.
These are curated links to videos published freely by Grant Sanderson (3Blue1Brown) on his site and YouTube. All content belongs to 3Blue1Brown. AnybodyCanAI is not affiliated with, sponsored by, or endorsed by 3Blue1Brown. The name is used only to identify the source.
Neural Networks
See what’s really happening inside a network
Grant Sanderson · Video series · Video series
Summary
A visual, intuition-first series on how neural networks work: what a network actually is, how gradient descent and backpropagation train it, and — in the newer chapters — how transformers, attention and the math behind large language models fit together.
The single best way to *see* what a neural network is doing. Sanderson’s animations turn abstract ideas into pictures you never forget — the perfect companion to any hands-on deep learning course.
Schedule
Lecture topics and dates rotate each offering — we link straight to 3Blue1Brown's official schedule and syllabus so it's always current.
Full schedule & syllabusAccess
Free on YouTube and 3blue1brown.com. No signup.
Materials & links
Source: 3Blue1Brown — all links open on the provider's own site.
Essence of Linear Algebra
The geometry behind vectors and matrices
Grant Sanderson · 16 videos · Video series
Summary
A visual series that builds a geometric intuition for linear algebra: vectors and spans, linear transformations as matrices, determinants, the dot and cross products, change of basis, and eigenvectors and eigenvalues.
Linear algebra is the language of machine learning, and this series makes it *make sense* — you stop memorizing matrix rules and start seeing what they do. Watch it before (or alongside) any ML course.
Schedule
Lecture topics and dates rotate each offering — we link straight to 3Blue1Brown's official schedule and syllabus so it's always current.
Full schedule & syllabusAccess
Free on YouTube and 3blue1brown.com. No signup.
Materials & links
Source: 3Blue1Brown — all links open on the provider's own site.
Essence of Calculus
Derivatives and integrals, made visual
Grant Sanderson · Video series · Video series
Summary
A visual tour of the core ideas of calculus: what derivatives and integrals really are and why they’re inverses, the chain and product rules, exponentials, limits, and Taylor series — building the intuition rather than drilling the mechanics.
Gradients and optimization power all of deep learning, and they’re just calculus. This series gives you the intuition for derivatives that makes backpropagation feel obvious rather than mysterious.
Schedule
Lecture topics and dates rotate each offering — we link straight to 3Blue1Brown's official schedule and syllabus so it's always current.
Full schedule & syllabusAccess
Free on YouTube and 3blue1brown.com. No signup.
Materials & links
Source: 3Blue1Brown — all links open on the provider's own site.