It's been pretty scalable in terms of using multiple GPUs.
PyTorch offers a user-friendly, pythonic approach, making it ideal for AIML projects and beginners. It excels with multiple GPUs and holds credibility in research. However, limited documentation and version incompatibilities can hinder usage. Stability issues arise with large data, and the need for faster training and better learning resources persists. Despite these challenges, PyTorch remains an efficient choice due to its ease of installation and setup.