Choose a reveal video or a portrait to compare
Swap video is a 10-second, 9:16 clip at 720p. The scene begins with the uploaded adult in a fixed selfie composition. The recipe then directs a vertical boundary to travel from left to right, separating the original styling from the transformed appearance. The final moment adds a small hair touch, smile or eyebrow movement so the reveal has an ending rather than stopping as a frozen comparison.
The transformation is designed around styling changes: hair, facial hair, makeup cues and everyday clothing details. Facial proportions, complexion and apparent age are the anchors for recognition. Think of the result as another portrait interpretation of the same person, rather than a request to replace them with a particular celebrity or an unrelated stock face.
Swap photo produces one 2K vertical image using Nano Banana 2.1. It can keep one person or the same two adults in the input, with their original order and setting as guidance. At 3 credits it is a different output choice from the 126-credit Seedance video, not an abbreviated video. Video creates its own audio; neither option attaches a particular trend recording. Review the current cards before choosing. The example helps explain the effect, while your own face and photograph guide the result.