Free vertical-video tool · No sign-up

AI Short Video Prompt Generator

Plan a focused 9:16 clip for TikTok, Instagram Reels or YouTube Shorts with clear action, camera movement and visual continuity.

Build your video prompt

Sample values: The pen-tray sequence is a fictional sample. Choose one action and a duration your video model can handle.

Your idea stays in this browser. Nothing is uploaded or saved.

Copy-ready video prompt

Better first generations: keep one main action per clip. Complex stories are more reliable when generated as separate shots and edited together.

Three rules for cleaner AI video

Describe motion

Say what physically changes over time. A visual style alone does not tell a video model what should happen.

Protect continuity

Repeat the important details—subject, wardrobe, objects and light—so they remain stable from start to finish.

Design the ending

A held final frame, hero shot or seamless loop gives the clip a deliberate finish.

Planning a prompt for a short AI video

Does this generate the actual video?

No. It creates a detailed prompt you can paste into your preferred AI video generator.

Why does the prompt avoid text?

Generated lettering can flicker or change between frames. Add captions and calls to action afterward in your video editor.

Can I use the same prompt on every platform?

The 9:16 framing works across major short-form platforms, but confirm each platform’s current duration, resolution and advertising requirements before publishing.

Turn one action into a shot continuity plan

For an illustrative eight-second bottle reveal, describe the start, the change and the end before adding mood words. Keep the same bottle, hand, table and light in every beat.

TimeVisible actionCamera instructionContinuity check
0–1 secClosed bottle rests on a clear tableLocked medium close-upShow the lid and bottle together
1–6 secA hand opens the lid onceSlow push-in; no orbitNo extra hand, bottle or label appears
6–8 secHold on the open lidSteady close-upEnd on the same product shape and light

This is a planning example, not a generated clip. If the chosen video model changes the product between frames, simplify the action or create separate shots and edit them together. Check the rendered duration, motion and safe framing in the finished export.

Reproducible example · November 3, 2026

Example: a six-second pen-tray video concept

This pen-tray concept uses a six-second shot prompt assembled by the page. It does not represent a rendered video or an audience test.

See all input settings
Ideaa pen tray sliding into place beside a notebook on a small desk
PlatformTikTok
Duration6-second
Movementone smooth transformation with a clear before and after
Cameraslow push-in with stable framing
Moodbright, optimistic daylight with crisp color
Endinghold on the finished result for one second

Shot prompt from the selected inputs

Create an original 6-second vertical 9:16 video for TikTok.
Concept: a pen tray sliding into place beside a notebook on a small desk.
Opening: Show a clear visual hook in the first second.
Action: one smooth transformation with a clear before and after.
Camera: slow push-in with stable framing.
Mood and lighting: bright, optimistic daylight with crisp color.
Ending: hold on the finished result for one second.
Maintain consistent subject identity, clothing, objects, scale, lighting direction and background across the clip. Use believable physics and natural motion. Avoid morphing hands, duplicated objects, flicker, logos, watermarks, subtitles and readable text. Keep the main action centered in mobile-safe framing.

How the brief guides action and continuity

One tray movement is easier to inspect than an entire room transformation. The output contains continuity constraints.

Inspect the generated clip for changes

An action prompt is not a finished clip. Reject outputs where pens duplicate, the tray changes shape or the notebook moves without a visible cause.

See the original prompt-to-image case and calculation checks →