Why AI is changing short-form content
TikTok, Instagram Reels and YouTube Shorts reward consistency: post often, test formats, repeat what works. That is exactly where AI helps most. It does not replace your idea, but it removes the time-consuming steps: finding a set, filming, recording a voice, writing a caption. A solo creator can produce in one hour what used to take a day.
This guide gives you a complete workflow, from hook to publishing, with the right models for vertical video and prompt examples.
Which models for vertical 9:16 video?
| Model | Strength for short-form | iafetch credits (short / 10 s) |
|---|---|---|
| Hailuo 2.3 | Polished look at a low price, ideal to post often | 6 / 10 |
| Kling 2.5 Turbo | Realistic people, lifestyle, talking to camera | 10 / 16 |
| Wan 2.2 Fast | Test an idea or a hook for 5 credits | 5 / 8 |
| Seedance 2.0 Fast | Creative styles, animation, visual effects | 8 / 14 |
| Veo 3.1 Fast | Spectacular shots and complex scenes | 12 / 20 |
All these models generate in 9:16 and live in the iafetch Videos module, with a single credit balance. Video comes with a subscription, from the Creator plan.
The complete workflow: a Reel in four steps
Step 1: the hook in the first three seconds
On short formats, much of the audience decides within seconds whether to stay. Your first shot has to intrigue right away. Hooks that work well with AI:
- Transformation: a striking before / after (an empty room getting furnished, a sketch turning into a photo)
- Direct question: on-screen text and a voice asking the question your audience is asking
- Visual satisfaction: a smooth movement, a flowing material, a burst of colour
- Point of view: the camera puts the viewer inside the scene
Step 2: the vertical video prompt
A structure that works for Kling or Hailuo:
[Subject] + [Precise action] + [Tight vertical framing] + [Mood] + [Subtle camera movement]Example: "A young woman in a modern outfit holds a phone and smiles at the camera, close vertical shot, golden late-afternoon light, slight push-in, premium lifestyle ad style".
Tip: start by generating the first frame in the Images module, then animate it into a video. You keep better control of the framing, and the character stays consistent from one video to the next.
Step 3: the voice-over
A voice clearly improves retention on short formats. In the Voice module:
- Pick a voice (Liam or Charlotte suit social media well) and the "Marketing" context
- Write about 15 words for 5 seconds of video, with short, direct sentences
- Generate (from 2 credits), download the file and combine it with the video in CapCut or Premiere
To write the script, the Copy module drafts hooks and captions in your account's tone, in your audience's language.
Step 4: publish at the right time
There is no universal magic hour: it all depends on your audience. Generally, late afternoon and lunchtime, in your followers' local time, work well. Your account analytics (TikTok Studio, Instagram Insights) show when your followers are actually online: post at those times first, then test other slots.
How many videos a month with iafetch?
| Plan | Credits per month | Example output |
|---|---|---|
| Creator, €19 | 100 | About fifteen short Hailuo clips, or ten Kling clips |
| Pro, €49 | 300 | About thirty short Hailuo clips with their voice-overs |
| Studio, €99 | 1,000 | Daily output across several accounts |
Credits never expire: a quiet month leaves you more credits for the next one.
Format ideas that work
- Before / after: an object, a room or a look transformed in seconds
- Recipes and products: perfectly lit food or product shots
- Lifestyle and heritage: architecture, markets, reinterpreted traditional outfits, which also speak to diaspora audiences
- Visual explainers: personal finance, tips, illustrated tutorials
- Quotes and motivation: a cinematic background, animated text and a calm voice
- Behind the scenes: showing how you make your videos with AI interests your audience a lot
Common mistakes
- Videos that are too long: on short-form, a well-paced 7 to 15-second video often beats a minute
- A cropped horizontal format: generate directly in 9:16 so you do not lose the subject
- No on-screen text: many videos are watched without sound; add captions
- Always the same model: try Hailuo, Kling and Seedance on the same idea to find your account's style
Frequently asked questions
Do TikTok and Instagram accept AI videos?
Yes. Platforms sometimes ask you to label realistic AI-generated content, but they do not ban it. What matters is how interesting the video is for your audience.
Can I write prompts in my own language?
Yes, the models understand many languages, including English, French and Arabic. Add an AI voice in the same language for fully localised content.
Can the videos be monetised?
Yes, the videos you generate belong to you. Just follow each platform's rules and avoid reproducing real people or protected brands.
Read next: the video model comparison · generate AI videos for less · the AI voice guide · iafetch for creators