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For Shorts creators and faceless channels

AI Video Generator for YouTube Shorts

A Short has one job in the first second: stop the thumb. That means the opening frame needs a clear subject, a readable action, and enough contrast to work on a small phone screen. A beautiful wide shot that needs three seconds to understand is already too slow.

This workflow opens in 9:16 with a prompt built for a strong vertical opening. Use it for a hook shot, a product teaser, a faceless story beat, or a transition, then assemble the full Short in your editor.

Made for

  • Faceless channels that need a hook visual
  • Creators testing a Short before a full production
  • Editors who need a clean vertical cutaway
Vertical YouTube Shorts still of a skateboarder landing a trick at sunset

Last updated: 2026-10-20

Try this workflow

The workspace below is preloaded with the mode, aspect ratio, and starter prompt for this page. You can change every setting before generating.

AI Video Generator for YouTube Shorts

Video Generator
275 / 2000
15s
4s15s

Generation Controls

These are the shared controls across all three workflow lanes.

2 options
Fast

Uses the faster route when available.

Generate Sound

Include synchronized audio when the provider supports it.

Task Notifications

Useful for longer queue times. We keep the current task switch separate from your future default.

Email me when this task is ready

We send the prompt, task page link, and a direct download shortcut when the render finishes.

Use this for future tasks too

Save this as your default so new tasks start with notifications already enabled.

Cost 150 creditsRemaining 0 credits
Preview

Nothing generated yet

Design the first frame for a phone

Put the subject in the center and leave breathing room at the top and bottom for captions and interface elements. Avoid tiny details near the edges. A single action, such as a skateboarder landing a trick or a hand opening a box, reads faster than a complex scene. Describe the action in plain language and keep the camera move short.

Generate the hook, then edit the Short around it

The workspace produces a short clip, not a finished Short. Use the clip as the opening beat, then add captions, context, and a payoff in your editor. If the hook works, reuse the same prompt structure with a new subject for the next video. That is faster than inventing a new visual language for every upload.

Prompt recipe

A fast vertical opening shot for a YouTube Short: a skateboarder landing a trick at sunset, camera whips from the sky to street level, dust and lens flare, high-energy motion, 9:16 framing, subject centered with headroom for captions, realistic detail, no text, no watermark.

Replace the skateboarder with your subject and keep the whip-down camera move. The vertical framing and the single action are what make the first second readable.

How this workflow works

1

Start from the right mode

The page opens the workspace in text-to-video, image-to-video, or reference-to-video mode. That choice decides whether the model starts from words, a still image, or a set of references.

2

Keep the starter prompt or rewrite it

The loaded prompt describes a subject, a camera move, lighting, and a visual style. Replace the subject and setting with your own, but keep the structure so the model still has clear direction.

3

Review the first clip before scaling

Generate one short clip, check the motion and subject consistency, then adjust one variable at a time. Once the look is stable, reuse the prompt with new subjects instead of starting from zero.

Why creators use HappyHorse for this job

The tool stays on the page

You do not have to read a guide, open another tab, and guess which controls matter. The workflow is already configured and the generator is directly below the explanation.

Short clips are cheaper to iterate

A 4 to 15 second shot is enough to judge motion, framing, and subject consistency. Iterate on a short clip first, then generate the final shot with the settings you trust.

One workspace for words, stills, and references

Text, image, and reference workflows share the same task history and controls, so you can move from a still-led shot to a reference-led shot without learning a second product.

Frequently asked questions

Short answers about the workflow, the inputs, and what to expect from a first generation.

What aspect ratio should a YouTube Short use?

Use 9:16. The workflow opens in that format so the subject fills a phone screen. Leave room for captions and the YouTube interface near the edges.

Can I generate a complete Short in one click?

No. The workspace generates short clips from 4 to 15 seconds. Use one or more clips as the visual foundation, then add captions, pacing, and a payoff in an editor.

Can I make faceless Shorts?

Yes. Use objects, environments, hands, or silhouettes as the subject. A faceless hook often works better when the action is clear and the camera move is simple.

How do I write a stronger hook prompt?

Name the subject, the action, and the first-frame contrast. Keep the camera move to one idea. If the clip needs a caption to make sense, the visual is not carrying enough of the hook.

Related workflows

Edit the result before you publish

Generate the hook before you edit the Short

Open the 9:16 workflow, keep the fast opening move, and generate a clip that gives your Short a reason to be watched past the first second.