Siamshort Docs

Custom Inpaint

Mask any area and replace it with a prompt-guided AI edit.

WHEN TO USE
One region is wrong — everything else must not move.
PAIRS WELL WITH
Draw to Edit (mark-driven edits), Remove Background (full-subject work).
💡 Tight masks with a small margin give the cleanest blends.

Paint over the part you want changed, describe what should be there instead, and the AI rebuilds only that region — the rest of the image stays pixel-identical.

Custom Inpaint tool page

How to use

  1. Upload the image and paint the mask.
  2. Describe the replacement.
  3. Generate; only the masked area changes.
Last updated: 12 Aug 2026