Scale sprite according to GLB file

Hello guys,
How is it possible to scale sprite size according GLB file for example I have 2 GLB files one file have

size approx. 0.33 meters and second file have size 20.05 meters when we upload GLB using threejs, I want scale of sprite will also change according to that particular size so it will be visible in both and looks good too. See 1.jpg have small size but I can’t able to scale according to that and 2.jpg have large size in meters so sprite looks good. I want scale will adjust automatically according to glb size so I don’t need to manual values.