No. Model Explorer at 0xr.space has no text-to-3D: typing or saying "a red chair" does not give you a model to keep. It opens 3D files you already have, finds models in its Gallery by name, and makes models from pictures: Photo → 3D from one photo, a Gaussian splat from 20 or more photos or a video, and on a Meta Quest 3 from a thing Scan sees.
Zero, its voice assistant, comes closest. Asked to show something, it puts a rough stand-in in front of you, built from up to 24 simple shapes such as boxes, spheres, cones and helices, which you can grab and pull apart. It is not saved to your library and cannot be downloaded. For a real model from words, use a text-to-3D service, then open its GLB here.
It is a viewer first, and the models it does make start from pictures of real things.
Asking Zero to show something: a stand-in of simple shapes, sized like the real thing, that you can look at but not keep.
Yes. Press Open and choose one photo; Photo → 3D builds a textured model in one to two minutes, 20 a day for each device and network.
Yes. Download it as GLB and open it; it opens in a browser and in VR or AR like any other GLB.