What is PyTorch?

Open source project

The ML library developed by the Facebook AI Research lab (FAIR) is an open-source solution used in a growing range of applications. The PyTorch ecosystem is accomplished by serial libraries like Torchvision (for computer vision), Torchtext (for natural language processing), or even Torchaudio (for sound processing).

The packages provide ready-made models and popular datasets, complementing the whole ecosystem. Much of PyTorch's strength results from the open-source character, as it's a sum of countless contributions of machine learning developers and researchers worldwide. Growing as the community behind it grows, PyTorch is nearly unrestricted in building DL/ML solutions.

From research to production

The TorchScript ties up the unified research to production framework. Transforming PyTorch modules into a production-friendly form with TorchScript enables faster execution of models, becoming independent of Python runtime and increasing performance.

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Why you should consider PyTorch

Pythonic style

It is designed to work smoothly with the Python ecosystem and can be used with popular Python packages.

Mixed-precision training

PyTorch supports methodology for mixed-precision training, combining single-precision and half-precision formats.

Libtorch library core

It is written mostly in C++ to achieve higher performance.

CUDA support

GPUs enable 50x or greater speed-ups in comparison to CPU calculations.

Distributed Data Parallelism

The feature enables running models across multiple machines to scale projects.

Fast & easy execution

PyTorch strives to make writing and using models as easy and productive as possible.

High speed of development

It provides a strong and constantly growing ecosystem.

Widespread adoption

Adoption of PyTorch by e.g. Microsoft and OpenAI assures its further development.

Cloud partners

There’s a possibility to set PyTorch on a vast amount of cloud-based environments from renowned providers.


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Features of PyTorch

Dynamic computational graphs

The network’s behavior can be modified at runtime in a dynamic manner, improving efficient model optimization. This allows for great flexibility and facilitates the implementation of a lot of new architectures.

Modular design

Representing the neural networks, modules are fundamental to PyTorch. Modules are individual operations, representing the building blocks of a neural network, in the DL domain called layers. Modules are easy to transform, allowing fast construction of any model.


PyTorch uses special data structures called Tensors to store and operate on multidimensional number arrays. They are similar to NumPy arrays but can be operated on GPUs which significantly speeds up the calculations.

Automatic differentiation for training and evaluating neural networks

Automatic differentiation evaluates functions' derivatives in neural networks. PyTorch contains the Autograd package, providing this functionality to automate processes and create computational graphs with nodes corresponding to mathematical operations.

Benefits of PyTorch

With PyTorch, you can build productive models to process various kinds of data for your benefits

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Easy debugging

PyTorch’s relationship with Python results in the possibility to use debugging tools of the latter. PyTorch offers the option of viewing any variable in the debugger or simply printing its state.

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Convenient access to data

The possibility to load practically any type of data – the user can easily use pre-loaded datasets as well as own data using custom DataLoaders.

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Pre-trained models

Instead of breaking the open door each time commonly used models are needed, researchers can freely adapt existing pre-trained neural networks.

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Effortless adoption

A reasonable learning curve and intuitive API make PyTorch a solution easy to adopt among your Python developers team. Fast to introduce in place of similar solutions – an all built-in “plug and play” with minimum configuration.

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Reduced development time

Thanks to the close relations with Python and a similar syntax, PyTorch supports productivity. Equipped with a simple interface and API, the environment runs smoothly on Windows and Linux. Less hassle, more work done.

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PyTorch's community

The community of PyTorch users is known as a friendly and helpful environment for developers and researchers. The forum behind it is full of tips on using various architectures, making it the right place for your team to search for answers and support.


Where to use PyTorch

Computer vision

Neural networks can be used in object detection, tracking, and image segmentation. The Torchvision package, a part of the PyTorch ecosystem, provides necessary functionalities. The library consists of pre-trained models, popular datasets, and common image transformations for computer vision.

Autonomous vehicles

Tesla and Uber adopt PyTorch in building neural networks, changing the automotive industry. The revolution is possible thanks to multitasking models that collect loads of traffic data. Engineers integrate neural networks to run efficiently in cars, providing real-time reactions in all scenarios.

Robotic solutions in industrial applications

Solutions built using PyTorch support various industries. For one, smart machines let farmers get rid of weeds, reduce costs and pesticide usage. In such cases, PyTorch is the base of a computer vision and machine learning system, recognizing crops from weeds and targeting the latter for spraying.

Artificial data generation

Generative Adversarial Network (GAN) models are trained with two opposing neural networks, one generating new data samples, and the other recognizing real examples. These models are capable of generating images, performing text-to-image translations, or even reconstructing videos from photos.

Natural language processing (NLP)

Training machines to identify and understand human languages enables e.g. gathering information from documents. In automatic text classification and translation, the Torchtext package is used, thanks to pre-built, generic loaders for popular datasets and text resources, including vocabulary objects.


They use PyTorch

Global companies building large, scalable products benefit from using PyTorch. These are among others:

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At NeuroSYS, we specialize in research and development, harnessing science to benefit business

Our team develops state-of-the-art projects, incorporating the newest technologies like PyTorch, to fully address our clients’ needs. We use PyTorch to create neural networks models, train, validate and test them in the process of building solutions such as computer vision and natural language processing.
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