- How is this different from a simple background eraser?
- An eraser just removes pixels and leaves a blank area. AI Replace generates new content in the brushed region — so you can swap a car for a motorcycle, or a person for an empty street. The model understands lighting and perspective, so the new object usually looks like it was actually photographed there.
- What kinds of object swaps work best?
- Single, well-lit, mid-sized objects are the easiest: cars, bikes, lamps, bottles, food on a plate, signs, chairs. The brush should cover the whole object plus its shadow. Very large objects (a building) or transparent objects (glass, water) are harder — sometimes you need a few tries to get a clean result.
- Why does my replacement object look wrong?
- Usually one of three things: (1) the brush didn't fully cover the original — leftover pixels confuse the model; (2) the prompt was too vague — "a chair" gives any chair, "a tan leather armchair facing the window" gives the chair you want; (3) the requested object doesn't fit the perspective — asking for a car at a zoomed-in tabletop angle won't work. Refine and run again.
- Can I replace people in a photo?
- Yes, but be careful. Swapping a person's face or body raises privacy and authenticity questions — only do it with the consent of the subject, or in clearly stylised contexts. The model can replace people with other people, with empty scenery, or with objects. We don't claim or imply photorealism for political or news contexts.
- Does it leave a watermark?
- No. The output PNG is clean at full resolution.
