Generative models are able to transform content between media types, and it feels like the original intention can be completed -- the server generates the appropriate form at request time, rather than serving a pre-rendered one.
A concrete example: an Image2Depth model estimates the depth of a scene from a standard image, encodes that information in the response, and returns it to clients capable of rendering depth -- 3D displays, VR headsets, and so on. The content is the same; the form is specialised to the client capabilities.