Looking at the API (e.g. https://docs.sketchfab.com/data-api/v3/index.html#!/models/get_v3_search_type_models), there is no way to get the total number (just the number) of models matching given query. You get first page of results (with default size being 24), but you only know if there is next page or not. So you don’t know if in total there are 25 models matching the query OR 125 models OR 16248 models matching the query.
Is there a way to get this type of information from the API?