You can nest generic annotation families inside host model families, so that the annotations appear in the project. This is useful if you want to include a label with a model family and display that label in the project.
Generic annotations hosted by model families scale with the view when they are loaded into the project. When you place these generic annotations on a sheet, they display at the same size, regardless of view scale. For example, a 3/32'' text label in a model family always prints at that size on a sheet, even if that label appears on the sheet in a view with a 1/8" = 1'0" scale or a view with a 1/4'' = 1'0'' scale.
You can also control the visibility of generic annotations in the project separately from the host model family.