# Custom ML Infrastructure: Building custom models from scratch using open-source libraries like PyTorch or TensorFlow on raw EC2 instances. 2 brands ranked by AI visibility (Brand Authority Index) Top brands: 1. AWS AI Services (BAI: 94, ai-machine-learning) 2. AWS AI (BAI: 94, ai-machine-learning) Raw queries: Custom ML Infrastructure: Building custom models from scratch using open-source libraries like PyTorch or TensorFlow on raw EC2 instances. | Manual Infrastructure Management: Building custom models from scratch using open-source libraries like PyTorch or TensorFlow on raw EC2 instances.