Room Key AI Video Effect

Room Key says a lot without a word. Your subject holds up a plain, unmarked white key card between two fingers beside their face, raises one eyebrow at the lens with a slow, knowing smile, then tucks the card away and keeps holding the look while the camera eases in at eye level.

In our test runs on MiniMax H3, a woman in a black blazer dress in a hotel room raised a blank white key card beside her face, raised an eyebrow with a slow smile, and slipped the card into her jacket at second three and a half as the camera moved in; the card stayed blank. In a second run, a man in a navy suit held up the same kind of blank card with a raised eyebrow and a grin, then tucked it inside his jacket.

It is a natural fit for hotel rooms, lobbies and evening outfits, but any chest-up or three-quarter photo with a spare hand works, because the card is added by the effect.

It runs on MiniMax H3 for five seconds by default, and H3 itself goes up to 15 seconds and 2K if you want more. Studio also lets you move the same prompt to another model before you generate, such as Seedance 2.0 or Wan 3.0, and the price on the Generate button updates with every change. Our samples were all made on MiniMax H3, so other models will read the prompt in their own way.

Use it as an invitation-style teaser, a playful end card for a travel set or a cheeky profile clip.

The prompt is public and editable. For a different prop, change "key card" to "single brass key"; for a bolder ending, add "and a slow wink".