A Short is not just a long-form video cropped down
The single biggest mistake creators make moving into AI Shorts is treating the format like a compressed version of a regular video — same script structure, same pacing, just narrower and shorter. It doesn't work. A Short has to hook in the first second, hold attention through a vertical frame, and land its point before the platform's algorithm decides whether to push it further. The good news: the AI pipeline — script, voice, scenes, motion, music — maps cleanly onto that structure once you build it in the right order. Here's the actual workflow, step by step.
Step 1 — Write a script built for 9:16
Vertical video rewards short, punchy sentences over long descriptive ones, because each sentence tends to become its own scene. Open with a hook line that states the payoff or the tension immediately — "this stock dropped 40% in a day, here's why" beats a slow wind-up every time. Keep scenes visual: if a sentence can't be pictured, the AI has nothing to generate. Vidsly's Short format supports up to 34 scenes and 180 seconds (3 minutes) — plenty of room for a fast-paced story, but the bound is enforced before you're charged, so a script that runs long gets caught and trimmed at the planning stage, not discovered mid-render.
A simple three-beat skeleton works for almost any niche: Hook (state the surprising fact or the stakes in one line), Body (3–8 short scenes delivering the payoff, one idea per scene), Close (a final line that either resolves the hook or asks a question that earns a comment). You don't need all 34 available scenes for most Shorts — a tight 8–12 scene script at 45–75 seconds outperforms a padded one most of the time. Save the full scene budget for niches that genuinely need it, like a multi-part true crime timeline or a longer history recap.
Step 2 — Pick a voice
Voice does more work in a faceless Short than almost any other element — it's the only human presence in the video. Vidsly's catalog covers 53 voices across 16 languages, so match the voice to the niche: something warm and conversational for motivational content, something crisp and neutral for finance or news, something moodier for true crime. Pro and Studio plans add premium DragonHD and Studio voices plus expressive emotional styles, which are worth the upgrade once a channel is your main format rather than a test.
Step 3 — Generate your scenes
Each line of narration becomes a scene, and each scene gets its own AI-generated visual — the pipeline matches clip length to how long that line of narration actually takes to say, so the video never drags on a slow scene or cuts off a fast one. If your Short needs a recurring host, mascot, or character across every scene, set them up once as a consistent character from a reference image rather than re-describing them in every prompt — this is what keeps a series feeling like one channel instead of a new AI experiment every video.
Step 4 — Pick your engine (this is a real decision, not a default)
Vidsly runs on multiple video engines, and which one you pick changes both cost and quality:
- Director's Cut — the flagship: an AI Director plans every shot with a cinematography pass and a quality gate that re-rolls a bad keyframe before it ever renders motion. Native 1080p. Best pick when a Short needs to look genuinely cinematic.
- Seedance — the same underlying motion muscle at native 1080p without the Director layer, for straightforward cinematic scenes at a lower credit cost.
- Long Play — a flat, low, budget-friendly price at 720p — good for testing a new niche cheaply before you know it's a keeper.
- Unlimited Director's Cut — on the Creator plan and up, the same Director pipeline renders at a 480p source for zero credits per clip, paced by a printed daily allowance (Creator 30, Pro 40, Studio 60 scene-clips/day) rather than metered per video. On a phone screen — which is where nearly every Short gets watched — 480p holds up fine.
If you're posting Shorts daily, the unlimited lane changes the math entirely: your first video on it skips the daily pacing altogether, however many scenes it needs, and every video after that draws from the printed allowance instead of your credit balance.
Step 5 — Music and final assembly
Once scenes and motion clips are generated, Vidsly mixes in music under your narration and assembles the finished 1080×1920 MP4 automatically — no manual timeline editing. This is the step where pacing choices from Step 1 pay off: tight sentences and well-matched scene lengths produce a Short that cuts on beat instead of lingering.
Common mistakes that kill a Short before it posts
- Writing long-form sentences. If a line takes 12 seconds to narrate, that's one very long scene doing the work of three.
- Skipping the hook. The first line has to earn the next five seconds — don't spend it on a setup.
- Ignoring the format ceiling. 34 scenes and 180 seconds is generous, but scripts that try to cram a full documentary into a Short read as rushed instead of dense.
- Picking the priciest engine by default. Match the engine to the video — a daily news Short doesn't need the same budget as a flagship channel trailer.
Start your first one
The fastest way to understand this workflow is to run it once. Open the Shorts generator, paste a script (or let the Studio help you shape one), pick a voice, and watch scenes generate around your narration. Open the Studio to get started, or compare plans if you're planning to post daily.