Hugging Face
Overview
An online hub where people share, download, and try open AI models and the datasets used to train them. It is often called the GitHub for AI.
General use
Developers and researchers use it to find a model for a task, test it in the browser, and pull it into their own projects instead of building from scratch.
Insight
The first place to look when you need an open model for a specific task, because you can try many in the browser before committing to one. The free hosted demos are often slow or down, since they run on shared hardware. Pulling a model into your own project still takes real setup and a machine to run it on. Best as a place to discover and test, not to host anything in production.