This one is odd to me. I don’t think “iNaturalist Seek” is ever a term we’ve used (Seek’s offical name is “Seek by iNaturalist”), and their descriptions of it sound more like the iNaturalist app, not Seek by iNaturalist.
iNaturalist Seek allowed the location of each image to be entered as metadata to assist with automatic identification and this was done either using geolocation data in the image or entered manually at county level.
One application, iNaturalist Seek, provided a binary classification on whether the user should have confidence in the identification (identification confirmed) or not (multiple potential identifications suggested in order of likelihood).