How to Generate Vertical 9 -16 AI Videos for TikTok and Instagram
Start with a mobile-first idea built around one clear action, such as a product reveal, a quick transformation, or a character entering a scene. In YB Video from YB.Digital, use a text prompt to describe the subject, setting, movement, lighting, and mood. Specify a vertical 9:16 frame so the composition suits TikTok and Instagram Reels from the outset.
Write the prompt as a short shot description rather than a list of unrelated details. Name the camera movement, such as a slow push-in, and keep the main subject near the center so platform interface elements are less likely to cover it. A useful prompt might describe a ceramic cup turning on a kitchen counter, with soft window light and a close-up camera move. These cinematic details give the generated scene a clearer visual direction.
Generate a clip, then review it at phone size. Check whether the subject remains visible throughout the motion, whether the action reads without sound, and whether the opening image communicates the scene quickly. If a face, hand, or product changes shape between frames, simplify the movement or adjust the prompt to focus on one action. Keep the strongest take as your base scene for editing.
| Workflow step | What to specify | What to review |
|---|---|---|
| Plan | One action and a clear subject | Mobile-first story |
| Prompt | Setting, light, motion, and mood | Vertical framing |
| Generate | Short cinematic scene | Subject consistency |
| Edit | Captions, sound, and pacing | Readable safe areas |
Build the final post in a video editor after generating the scene with YB Video. Trim pauses, add captions for viewers watching without audio, and place text away from the screen edges where app controls appear. Match music or sound effects to the action, then export in a vertical format supported by your publishing workflow. A concise on-screen hook, such as “Watch the glaze change,” gives viewers context before the first cut.
Before publishing, confirm that each visual element has a clear role in the story:
- Use one focal subject per shot.
- Keep captions brief and high contrast.
- Leave room for platform buttons and labels.
- Choose cover text that remains legible at thumbnail size.
For a consistent series, reuse a prompt structure while changing the subject, location, or action. Save successful descriptions for lighting and camera movement, then adapt them for product clips, tutorials, or short character scenes. That gives you a repeatable vertical storytelling workflow without making every post look identical.