Smalltown Boy AI video: both characters look the same, how do I fix it?

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Short answer

The model can blend two subjects that look alike. Use two clearly different photos, such as a ginger cat and a grey cat, or two people in different clothes and backgrounds, never the same photo twice. Then run the free 5-second preview to check before spending credits.

Example frame: two people in a backyard filmed from a low angle against a blue sky, in an AI-generated video
Example frame: two people in a backyard filmed from a low angle against a blue sky, in an AI-generated video

Common causes

  • Same photo in both boxes: the model has nothing to tell them apart.
  • Similar colours: two black cats on a dark sofa are hard to separate.
  • Two subjects in one photo: the model may copy the wrong one into both roles.
  • Very small subjects: far from the lens, both look like blobs.

What to try

  • Use two different photos, each with one subject.
  • Pick photos with different backgrounds.
  • Show each subject large in the frame, facing the camera.
  • Run the preview again before the full render.

Questions people ask

Can I use the same photo for both?

It is better not to. Both would look identical, and the model may merge them.

Is a merged look a failed video?

No. A failed video is one that did not finish, and its credits return on their own. A finished video with alike characters is a normal result.

Do different breeds help?

Yes. Clearly different colours and shapes make the two easy to tell apart.

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