How to Write AI Video Prompts (Reusable Formula)
June 13, 2026
If your AI video clips keep coming out blurry, stiff, or just not what you pictured, the problem usually isn't the tool. It's the prompt. A good AI video prompt is less like a wish and more like a shot list: it tells the model what to show, how to move, and how it should feel. Get the structure right and your results stop being a coin flip.
This guide gives you one reusable formula for writing AI video prompts, a handful of copy-and-adapt examples, and a short troubleshooting section for when a clip goes sideways. By the end you'll be able to write a prompt in under a minute that produces something close to what's in your head.
Why most AI video prompts fail
Most weak prompts share the same flaws:
- Too vague. "A cool city scene" gives the model nothing to anchor on, so it guesses — and its guess rarely matches yours.
- Too crowded. Cramming five subjects, three actions, and four style references into one sentence forces the model to drop most of them.
- No motion direction. Video is motion. If you never say how things move or how the camera behaves, you get either a near-static shot or chaotic, unintended movement.
- Style as an afterthought. "Make it cinematic" tacked onto the end is weaker than describing the actual look you want.
The fix is structure. When every prompt covers the same core elements in roughly the same order, the model has fewer gaps to fill in for you — and you have fewer surprises.
The reusable AI video prompt formula
Here's the backbone. Memorize the order; you'll adapt the details endlessly:
[Subject] + [Action / Motion] + [Setting] + [Camera & Shot] + [Lighting & Mood] + [Style] + [Duration / Pacing]
You don't need all seven slots every time, but the first four carry most of the weight. Let's break each one down.
1. Subject — who or what is on screen
Be specific about the main subject and one or two defining traits. "A woman" is thin; "an older woman with silver hair in a wool coat" gives the model something concrete to render and keep consistent across frames.
Resist the urge to list five subjects. One clear hero subject (plus maybe a secondary element) reads far better in motion than a crowded frame.
2. Action & motion — what actually happens
This is the slot people skip most, and it's the one that separates video from a moving photo. Describe the action in plain, physical terms: walking slowly, turning to look back, leaves drifting down, steam rising from a cup.
Keep the action achievable in a few seconds. "Builds an entire house" won't fit a short clip; "hammers a nail, then wipes their brow" will.
3. Setting — where it takes place
Ground the subject in a place. A rain-slicked alley, a sunlit kitchen, a foggy mountain ridge — the environment shapes lighting, color, and atmosphere automatically, so a strong setting does double duty.
4. Camera & shot — the most underused lever
This is where prompts go from amateur to intentional. Borrow the language of filmmaking:
- Shot size: wide shot, medium shot, close-up, extreme close-up.
- Angle: eye-level, low angle, high angle, overhead.
- Movement: slow push-in, dolly out, pan left, tracking shot following the subject, static locked-off shot, handheld.
Even one camera instruction — "slow push-in on the subject's face" — dramatically improves how deliberate the clip feels.
5. Lighting & mood — the feeling
Lighting carries emotion. Golden-hour warmth reads differently than cold blue moonlight or harsh fluorescent office light. Name the light source and time of day, and add a mood word or two: moody, serene, energetic, tense.
6. Style — the visual language
Now place the kind of look you want: photorealistic, cinematic film grain, hand-drawn animation, stop-motion, vintage 16mm. Put style here rather than as a vague afterthought, and tie it to something tangible ("shot on film, soft grain") so it actually influences the render.
7. Duration & pacing — the rhythm
If your tool supports it, hint at pacing: a single slow continuous take feels different from quick energetic motion. Shorter clips with one clear action almost always look cleaner than long prompts trying to cram a whole scene.
Putting the formula together: worked examples
Example 1 — Calm product/lifestyle clip
Medium shot of a ceramic coffee cup on a wooden table, steam rising gently, in a sunlit kitchen by a window. Slow push-in camera, warm golden morning light, soft and cozy mood, photorealistic with shallow depth of field, one slow continuous take.
Notice how every slot is filled, but the action is small and achievable (steam rising), the camera has one clear instruction, and the style is tied to something concrete.
Example 2 — Atmospheric narrative shot
Wide shot of a lone hiker in a red jacket walking along a foggy mountain ridge at dawn. Tracking shot following from behind, cold blue light breaking into soft pink, lonely and contemplative mood, cinematic with subtle film grain.
Example 3 — Playful animated clip
Close-up of a small orange cat batting at a dangling string in a bright living room. Static eye-level shot, cheerful afternoon light, hand-drawn animation style with bold outlines, quick bouncy motion.
Same skeleton, three completely different outputs. That's the point of a reusable formula — you change the contents, not the structure.
Quick fixes when a clip goes wrong
When the result misses, don't rewrite from scratch — diagnose by slot:
- Looks static / barely moves? Strengthen the action and add a camera movement ("slow dolly in," "pan across").
- Too chaotic / morphing weirdly? You're asking for too much. Cut to one subject and one clear action. Shorten the clip.
- Wrong mood or color? Rework the lighting line — name the light source and time of day explicitly.
- Style ignored? Move style earlier and anchor it ("shot on 16mm film" beats "make it artsy").
- Subject keeps changing appearance? Add one or two fixed identifying traits and keep them consistent if you iterate.
Iterating one slot at a time is faster and far more controllable than throwing out the whole prompt.
A few habits that level up every prompt
- Front-load what matters. Put your most important element near the start; models weight early tokens.
- Show, don't label. "Soft light spilling through a curtain" beats "nice lighting."
- One idea per clip. Stitch multiple short, clean clips together rather than forcing one prompt to do everything.
- Keep a swipe file. Save prompts that worked. Your best future prompts are remixes of your past wins.
Where to actually try this
You can practice the formula on any modern AI video generator. If you'd rather not juggle separate apps for writing, image creation, and video, SentX AI is an all-in-one consumer AI product that combines AI chat, AI image generation, and AI video generation in one place — on the web, Telegram, and mobile.
Two things make it handy for prompt practice specifically: there's no signup wall to start trying it, so you can experiment immediately, and it has persistent memory — it remembers your earlier prompts and preferences across conversations, which makes iterating on a video idea feel continuous instead of starting cold every time. Chat has a genuine free daily tier, while image and video generation run pay-as-you-go from a wallet at a low per-generation cost, so you only pay for what you actually render.
Take the formula above, write your first prompt, generate, then fix one slot at a time. That loop — write, watch, adjust — is how you go from random results to reliable ones.
FAQ
What is an AI video prompt?
An AI video prompt is the text instruction you give a video generation tool describing what should appear and how it should move. A strong prompt covers the subject, the action or motion, the setting, the camera shot, and the lighting or style — so the model has clear direction instead of guessing.
How long should an AI video prompt be?
Long enough to cover the key slots (subject, action, setting, camera, lighting, style) but no longer. One to three focused sentences usually works best. Overly long prompts that pile on many subjects and actions tend to confuse the model and produce messier results.
Why does my AI video look static or barely move?
Usually because the prompt didn't describe motion. Add a clear physical action for the subject and a camera movement such as a slow push-in or a tracking shot. Video models need explicit motion direction; without it, you often get a near-still frame.
How do I keep a character or subject consistent across clips?
Give the subject one or two fixed, distinctive traits (hair color, clothing, an accessory) and repeat them word-for-word as you iterate. Tools with persistent memory can also help by retaining details from your earlier prompts, so you don't have to re-describe everything each time.
Do I need an account or paid plan to try AI video?
It depends on the tool. Some let you start without a signup wall. On SentX AI, for example, you can begin trying it with no account, chat has a free daily tier, and image and video generation are pay-as-you-go from a wallet at a low per-generation cost — so you can experiment before committing.
What's the single biggest improvement I can make to my prompts?
Add intentional camera direction. Most people describe what is in the scene but never how the camera sees it. One instruction — "slow push-in" or "wide tracking shot" — instantly makes a clip feel deliberate instead of accidental.