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AI Video Prompt Generator — camera language, beat timing, real physics

Image prompts fail by being vague. Video prompts fail by ignoring time. Here is the six-layer structure a clip actually needs, what each model rewards, and how WEDO AI Studio writes it from one plain sentence.

Why most AI video prompts fail

Image prompts fail by being vague. Video prompts fail differently: people write them like image prompts and forget that video has a time axis. "A cinematic shot of a car driving through a city at night" describes a frame, not a clip. The model has to invent what happens across the four, eight or ten seconds — where the camera starts, where it ends, how fast, what moves, what the light does as it moves — and it will invent something different every run.

The fix is to write a shot, not a picture. That means naming the beats.

The six layers of a working video prompt

  1. The beat sheet. What happens at which second. Even a rough "0–2s / 2–5s / 5–8s" split stops the model from cramming three ideas into one confused move.
  2. One camera move, named. Push in, pull out, orbit left, crane up, handheld follow, locked off. One move per clip. Two moves in four seconds is where AI video turns to soup.
  3. Lens and framing. Same logic as stills: a 24mm push feels aggressive and warps the edges, an 85mm push feels intimate and compresses. State the start framing and the end framing.
  4. Lighting behaviour over time. Not just "moody" — what the light does. A practical passing across the subject, a rim light building as the camera orbits, headlights sweeping through. Light that changes is what makes a clip read as filmed rather than animated.
  5. Motion physics. Weight, speed, contact, follow-through. Steam rising slowly, fabric settling after the move stops, liquid with real viscosity. Naming physics is the single biggest quality lever in current video models.
  6. Audio cue, where supported. Veo generates its own audio, so telling it the ambience and the one foreground sound is free quality. Most other models ignore it harmlessly.

A worked example: an eight-second product ad

Typed by hand
cinematic shot of a coffee cup on a table, steam, warm lighting, slow motion, 4k

No start, no end, no camera behaviour, no timing. The model picks all of it.

Written as a shot
8 seconds, one continuous take, 50mm, shallow depth of field. 0.0-2.5s: Locked-off macro on the rim of a white ceramic cup. Steam rises slowly with real weight, curling right as it clears the rim. Single hard practical from camera-left rakes across the ceramic; the background is a deep unlit brown falling to black. 2.5-5.5s: The camera begins a slow 12cm push in and 5 degrees down, revealing crema texture on the surface of the espresso. As it moves, the rim highlight travels along the curve and a warm bounce builds on the near side of the cup. 5.5-8.0s: The push settles. Steam thins. The final frame is the cup slightly left of centre with clean negative space at upper right. Physics: steam has drift and dissipation, not a smoke plume; no liquid movement; no camera shake. Audio: quiet room ambience, one soft ceramic settle at 5.5s. Negative: text, logo overlay, watermark, second cup, hands entering frame, jitter, flicker, warped rim.

Every clause there is a decision the model no longer gets to make randomly. That is why the clip is usable and why a second render still matches the first.

Model notes — they are not interchangeable

ModelWhat it rewards
Seedance 2.0Precise technical shot language with exact second-by-second timing, physics-accurate motion and strict camera grammar. It rewards specificity more than almost any other model, so give it the full beat sheet.
Seedance 2.0 FastKeep it tight. Front-load the strongest visual, one clear camera move, exact timing beats, less prose.
Kling 3.0Emphasise motion paths and subject consistency, and describe the start frame and end frame explicitly. Its Motion Control variant follows a stated trajectory almost literally.
Google VeoNatural cinematic prose rather than technical shorthand, and include audio cues — it generates sound natively, so ambience and one foreground effect are worth writing.
Sora / RunwayStructure as camera, then subject action, then environment, then style. Keep motion simple and physically plausible; complex multi-action sequences degrade fast.
HiggsfieldEditorial realism — lean into skin and fabric texture, natural light behaviour and pose language.

Five mistakes that ruin AI video

How WEDO AI Studio writes these

Pick the Video category, type what you want in plain words, and choose your target model. The tool expands your line into a brief, pre-selects the camera move, lens, lighting and duration to match, then writes one flowing paste-ready prompt in that model's conventions — with the negative list attached and no framework labels left in the output. There is a Storyboard mode for multi-shot sequences, and JSON output if you are feeding an API.

Frequently asked questions

What is an AI video prompt generator?

It is a tool that turns a short description into a full shot specification a video model can execute — beat timing across the clip, one named camera move, lens and framing, how the lighting behaves over time, motion physics, an audio cue where the model supports sound, and a negative list. Video prompts fail mostly because people write them like still-image prompts and leave the time axis undefined.

Which AI video models does it support?

Seedance 2.0 and Seedance 2.0 Fast, Kling 3.0 including the Turbo and Motion Control variants, Google Veo, Sora, Runway, Higgsfield and Grok Imagine, among others. Each one gets prompt text written in its own conventions rather than one generic format, because they genuinely reward different things.

How long should an AI video prompt be?

Long enough to name the beats, the camera move, the lighting behaviour, the physics and the negatives — usually eight to fifteen lines for an eight-second clip. Seedance rewards the fullest detail; the Fast and Turbo variants of most models prefer a tighter prompt with the strongest visual first.

Why does my AI video flicker or warp?

Usually one of three causes: two camera moves competing inside a short clip, a request for text or a logo to be rendered in frame, or no negative list at all. Give it one move, keep type out of the generation and add it in edit, and explicitly exclude flicker, jitter and warped geometry.

Can I generate the video inside WEDO AI Studio?

Not currently — WEDO AI Studio writes the video prompt, and you run it in Seedance, Kling, Veo, Sora or Higgsfield. Image generation is built in; video generation is not. The prompt is written to be pasted straight into those tools without editing.

Does it help with multi-shot sequences?

Yes. There is a Storyboard mode for sequences, so you can plan a set of shots that cut together — consistent subject, consistent grade, and a camera logic that carries across the cut instead of fighting it.

Write shots, not wishes

Type the clip you want in plain words. Get a beat-timed, model-correct video prompt you can paste straight into Seedance, Kling or Veo. 30 free generations.

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Also on WEDO AI Studio

AI Image Prompt GeneratorThe nine decisions a professional image prompt makes, and the syntax each model wants.Image to PromptRead a reference image back into a working prompt — light, lens, grade and materials.Free Prompt LibraryCopy-paste prompts for product shots, luxury ads, cinematic reels and Instagram content.