10th FEBRUARY, 2026
PyTorch is currently one of the most popular deep learning frameworks. It is an open-source library built upon the Torch Library (it's no longer in active development), and it was developed by Meta AI (previously Facebook AI). It is now part of the Linux Foundation.
Machine Learning (ML) is all about numbers. Tensor is a specialised container for those numbers. You might know tensors from maths or physics, but in machine learning, a tensor is simply PyTorch's data type for storing numbers. Think of it like a more powerful version of a list or array. Tensors hold your training data and the your model learns.