Google Colab: Free GPUs in Your Browser

Your laptop has a CPU. A CPU runs code one operation at a time, very fast. For Python scripts, data processing, and small models, it is completely fine. Training a neural network is different. A single training step involves millions of matrix multiplications. A CPU does these sequentially. Even a decent laptop CPU takes minutes per epoch on a small image dataset. A real training run can take hours. Or days. A GPU does those same matrix multiplications in parallel. Thousands of cores, all workin