Stitch allows users the ability to clip and integrate scenes from another user’s video into their own. Users can decide in their settings whether or not others can Stitch their content, just like with Duet. Every video made with Stitch attributes the original creator in the new video’s caption, and the caption attribution links directly to the original, clipped video. Stitch is a way to reinterpret and add to other user’s content, building on their stories, tutorials, recipes, math lessons, and more.”]
Source: https://newsroom.tiktok.com/en-us/new-on-tiktok-introducing-stitch