by Amit Shekhar · 9 July 2026
How does PyTorch work?
How PyTorch works. We will also see what a tensor is, how the computation graph and autograd work together to train a model, and why PyTorch uses the GPU to become one of the most popular tools in the real world.
Read on Outcome School ↗then come back to lock it in
Before you read, guessWhat is the definition of a Tensor in PyTorch?
Ten seconds, a guess, then read — a wrong guess still makes the answer stick.
What this article covers
- What is PyTorch?
- What is a Tensor?
- The problem PyTorch solves
- What is a Computation Graph?
- What is Autograd?
- A complete training example
- What is the GPU and why does PyTorch use it?
- Why is PyTorch so popular?
The article lives on outcomeschool.com. Read it there, then come back: the tutor in the margin has read it and will answer questions, and the questions below check what stayed.