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PyTorch

A popular toolkit researchers and programmers use to build and train AI models in Python.

What it does

PyTorch is a Python library for building neural networks, the layered math systems behind most modern AI. It handles the heavy number-crunching and can use graphics cards (GPUs) to make it much faster.

Its makers say it is designed to feel natural to Python users and to let researchers change how a model behaves on the fly, which makes experimenting easier.

It is mainly used as a research platform for deep learning and as a faster, GPU-powered alternative to everyday math libraries.

Who it's for

AI researchers, students and programmers who build or train their own models.

Can I use it without coding?

Developers only. It's a code library; install commands are listed on the PyTorch website. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
Runs on
Linux, Windows, Mac
API key
Not needed

Try it

Official download page

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
  • No standard license listed. Check the GitHub page before using it for business.
  • More on staying safe

Where people are talking about it