TikTok story video generator
How to Make Vertical AI Story Videos for TikTok, Reels and Shorts
Vertical story videos live or die on the first two seconds. This guide covers how to structure a prompt for 9:16 platforms and what StoryAi generates for each format.
Start with the hook, not the setup
Put the turn in your premise. "A ranger records the forest at night and hears her own voice answering back" gives the model an opening image and a question; "a story about a forest" gives it neither. StoryAi builds scene one from the first clause of your premise, so the hook you write is the hook viewers see.
Set 9:16 before generating
Aspect ratio is chosen on the composer, not cropped afterwards. Selecting 9:16 frames every image and clip vertically at 720x1280 so subjects stay centred and captions never collide with platform UI. Widescreen 16:9 remains available for YouTube long-form.
Captions and narration for sound-off viewing
Most feed viewing starts muted. Narration is generated for every scene and playback shows live captions in sync, so the story still reads without audio and gains from it when sound is on.
Templates for repeatable series
Template presets fix genre, tone, voice and scene count so a series keeps one identity across episodes. Pick a template, change only the premise, and each new episode inherits the same look and pacing.
Common questions
- What resolution are vertical exports?
- Vertical scenes are generated at 720x1280 (9:16), suitable for TikTok, Reels and Shorts uploads.
- Is there a watermark?
- Free exports carry a StoryAi watermark; paid plans include watermark-free export.
Try it on your own idea
One sentence is enough to get a script, scene images, narration and animated clips.
Generate my story