Virtual staging that is pixel-identical where it matters

Related but different. MLS compliance is a set of policy rules about what a listing photo can show. Structural fidelity is the engineering property that makes compliance the default — if the building can't change between source and output, you can't accidentally produce a non-compliant render. For the policy framing, see virtual-staging-structural-integrity; for the engineering, you're already here.

Manual masking is reactive: you tell the tool what not to touch, every time, for every photo. Element-segmentation conditioning is preventive: the model is structurally incapable of drifting on those pixels, on every photo, by default. No mask to forget, no edge to feather, no boundary to clean up.

Yes. Every render produces an overlay diff that shows exactly which pixels changed. On a clean render the diff is contained entirely within the staged content — furniture, accessories, lighting — with structural pixels showing as zero delta.

Use the targeted tool for that change — Repaint Wall, Flooring Replacement, Renovation — which scopes the model to that specific element with the same preservation guarantees applied to everything else. Structural fidelity is a default, not a wall.

Because most of them are thin wrappers around general-purpose image models with no segmentation conditioning, no edge-preservation loss, and no MLS reward model. The upstream model was trained to make beautiful images, not to keep your building the same building. Architecture matters; see /architectural-ai for the full picture.