I've used AI through APIs for years — POST a prompt, get tokens back, ship the feature. I have never once deployed a model myself. No PyTorch, no GPU memory math, no idea what actually happens between my HTTP request and the text that comes back.
Source: [Dev.to](https://dev.to/dinesh_kumarramasamy_f6a/from-api-to-gpu-week-1-understanding-nvidia-dgx-spark-environment-1aol)