Google Colab

Google Colab (Colaboratory) is a hosted notebook environment that runs in the browser at colab.research.google.com, signed in with an ordinary Google account. It gives you a Jupyter notebook with Python and the common data-science and machine-learning libraries preinstalled, so you can write and run code — including AI and model experiments — without installing anything or configuring a machine.

The draw is free access to hardware accelerators. Colab provides GPUs and TPUs at no charge, which is why it is such a common starting point for learning machine learning, prototyping models, and running notebooks shared by others. Notebooks save to Google Drive, run alongside your files, and can be shared like any Google document.

It fits students, learners, researchers, and developers who want to try AI and data work — or reproduce someone else's notebook — without paying for a cloud account first. It is one of the most practical free AI tools for anyone who codes.

To begin, open colab.research.google.com, sign in, and start a new notebook; enable a GPU or TPU from the runtime settings when you need one. No credit card is required for the free tier.

The honest limits, stated plainly. Free access to accelerators is heavily restricted and not guaranteed: available GPU types vary, usage limits fluctuate and are not published, and a free session can run for up to about twelve hours before it is recycled. Long training runs, remote-desktop or web-UI use, and idle sessions can be cut off. For guaranteed or heavier compute, Colab offers paid options (Pay As You Go, Colab Pro, and Pro+); prices are shown at sign-up rather than on the FAQ and change over time.