What are the differences between PyTorch and TensorFlow?

PyTorch and TensorFlow are both popular deep learning frameworks, with some key differences between them.

1. Dynamic graph vs. static graph: PyTorch uses a dynamic graph, which means it builds the computation graph at runtime, making it easier to debug and dynamically modify the network structure. TensorFlow, on the other hand, uses a static graph, requiring the graph to be defined first before running. This makes TensorFlow more suitable for deploying and optimizing large-scale models.
2. API and user-friendliness: PyTorch’s API is designed to be more concise and intuitive, making it easier to learn and use. While TensorFlow had some complex APIs in earlier versions, this has been improved in recent updates.
3. Community and ecosystem: TensorFlow has a larger user community and ecosystem, offering more pre-trained models and tools for use. Despite being newer, PyTorch also has a growing community and ecosystem.
4. Mobile support: TensorFlow provides TensorFlow Lite for running deep learning models on mobile devices, while PyTorch has limited support for mobile.

Overall, the choice between PyTorch and TensorFlow depends on personal preferences and project requirements. PyTorch is suitable for those who prefer dynamic graphs and simple APIs, while TensorFlow is more suitable for projects requiring large-scale deployment and optimization.