Best Photos for an AI Duo Video: A Practical Two-Photo Guide

The model can only work with what your photos give it. A clear, well-lit photo does more for output quality than any prompt trick — and most failed-looking videos trace back to the source images, not the AI.

What makes a photo "work"?

Four things, in order of importance:

1. One clear face. One subject per photo, facing the camera or in a three-quarter view. Sunglasses, heavy shadows over the eyes, or a face smaller than about a quarter of the frame all degrade identity.
2. Even, front-facing light. Window light or daylight works great. Backlit phone selfies are the single most common cause of muddy results.
3. A plain background helps, but is not required. Busy backgrounds are fine as long as the subject stands out from them.
4. Normal proportions. Extreme wide-angle close-ups distort faces; the model happily preserves that distortion.

Which two photos should you pick together?

The two photos are edited into one shared scene, so think about the pair:

• Mood match works best. A formal portrait next to a beach selfie can produce odd styling clashes; the model usually splits the difference.
• Framing can differ. A headshot and a half-body shot combine fine — each subject keeps its own proportions.
• Both subjects should look at or near the camera. Profiles work, but the generated performance reads better when the model has a clear view of each face.

If you want the scene itself to carry more of the style, pair good photos with a deliberate prompt instead of hoping the AI improvises.

Common mistakes that waste credits

• Group photos cropped tight. The leftover shoulder or half-face next to your subject sometimes reappears in the output. Crop to the single person first.
• Filters and beauty modes. Skin smoothing changes facial geometry; the model treats the smoothed face as the real one.
• Screenshots from video. Motion blur and compression artifacts stack up. Export a still frame instead.
• Watermarked images. Logos tend to survive editing and show up on clothing.

Draft at 480p to test a photo pair cheaply before spending 45 or 80 credits on the final export — see the quality comparison for the cost breakdown.

What about pets and costumes?

Pets work well with the same rules: one clear face, decent light, minimal clutter. Costumes and uniforms are preserved faithfully, which makes themed duo videos (sports jerseys, formal wear, holiday outfits) one of the most fun use cases.

Frequently asked questions

Can I use old scanned photos? Yes, as long as they are sharp and evenly lit. Heavy grain is the enemy — a lightly restored scan beats an original print.

Do both photos need the same resolution? No. The model normalizes them internally. A 2 MP photo and a 12 MP photo combine without issue.

What if my photo gets rejected? Some content — public figures, minors without authorization, watermarked celebrity images — is blocked by safety review before generation. Use only photos you own or have permission to use.