Change one detail.Not the whole image.

Nothing. Only the marked area is changed — perspective, architecture, lighting and all other parts of the image remain untouched. That is why image quality holds up even after several consecutive edits.

Roughly is enough. You trace the area with the mouse; the edges are blended automatically when the change is applied. Pixel-perfect cutouts like in Photoshop are not needed.

Very small details, highly reflective surfaces and transparent materials such as glass are demanding — especially when the change would have to repeat in a reflection. In those cases a fresh generation gets you there faster.

No. Masking works on the finished image — a render, a photo or a screenshot. Your model stays untouched.

A few seconds per pass. You see the result directly in the image and can immediately re-describe the area if it is not right yet.

No — neither now nor later. Your uploads and results are processed exclusively for your visualizations. Hosted in Europe, Swiss hosting in preparation.