Vertical size refers to portrait-format video clips optimized for phone screens, typically in a 9:16 aspect ratio. You describe a scene with vertical framing and the tool generates a matching clip.
AI Video Generator Vertical Size for Portraits
Morning coffee commercial
Input
A steaming cup of coffee on a wooden table, sunlight through a window, steam rising slowly, close-up, warm tones, portrait framing
Expected output
A portrait-format clip of a steaming coffee cup in warm morning light with slow rising steam.
City walk teaser
Input
Rainy city street at night, neon signs reflecting on wet pavement, a pedestrian walking away, cinematic vertical composition
Expected output
A vertical cinematic clip of a rainy neon city street with reflections on wet pavement.
Product reveal loop
Input
A minimalist sneaker rotating slowly on a light gray podium, soft studio lighting, clean background, short vertical loop
Expected output
A clean vertical product clip showing a sneaker rotating on a light podium.
Produce portrait-format video clips from a text description for vertical layouts and short-form projects
Frame ideas for portrait screens
Describe close-ups, full-height shots, and vertical compositions directly so drafts match the layout you need.
Iterate on scene and motion
Test several scene descriptions in one session and regenerate until the motion and mood fit the clip.
Review before you reuse
Check each clip for motion, framing, and rights before you download or repurpose it.
How It Works
1
Describe the scene and motion
Describe the desired scene and motion.
2
Choose the settings
Choose the available generation settings.
3
Generate and review
Generate, review, and download a suitable result.
Vertical video prompt tips
Write the clip as a visual brief: subject, framing, lighting, and movement.
Input Constraints
State the subject and where it sits in the frame
Describe motion such as pan, zoom, or slow drift
Name the mood, lighting, and color palette
Mention portrait framing if the clip is for a vertical layout
Keep the scene original and within your rights to use
Practical Tips
Write one sentence for the scene and one for the movement
Specify camera feel, such as close-up, wide, or handheld
Try a second prompt that changes only the motion
Review the clip and refine the prompt with a follow-up description
Privacy
Do not upload personal or sensitive material unless you have permission to use it.
Usage Rights
Confirm that you have the rights needed for the inputs and intended use of the result.
Prompt recipes
Copy a structure, then adjust the subject, lighting, camera, and output details for your own result.
Skincare product application
Vertical close-up of hands applying cream to forearm, smooth spreading motion, natural bathroom lighting, soft focus background, portrait 9:16 orientation
Shows product use with clear action, lighting, and vertical framing direction that works well for beauty and wellness content.
Urban street fashion
Full-body vertical shot of a person walking toward camera on a city sidewalk, confident stride, buildings and traffic blurred behind, golden hour lighting, portrait aspect ratio
Captures motion, environment, and lighting in a vertical frame suited for fashion or lifestyle content.
Food reveal moment
Vertical overhead shot of a burger being assembled layer by layer, each ingredient dropping in slow motion, bright studio lighting, portrait 9:16 framing
Uses overhead angle and slow-motion to create a satisfying food assembly moment optimized for vertical feeds.
Dance move closeup
Vertical shot of a dancer's feet performing a quick footwork sequence, studio floor visible, dramatic side lighting, portrait orientation, tight framing
Focuses on a specific body part with clear lighting and framing to highlight movement in a vertical dance clip.
Nature waterfall portrait
Vertical composition of a narrow waterfall cascading down moss-covered rocks, mist at the base, green forest blurred behind, natural daylight, 9:16 aspect ratio
Uses natural vertical subject (waterfall) with atmospheric detail and clear aspect ratio direction for nature content.
Best use cases
Match the workflow to the input you have and the result you need before opening the generator.
Use case
Best input
Expected result
Tool
Social media vertical content
Portrait scene description with subject and motion details
A vertical clip for Reels, TikTok, or Stories
AI Video Generator
Mobile-first marketing
Product or brand scene with 9:16 framing and clear subject placement
A portrait video optimized for phone viewing
AI Video Generator
Tutorial or how-to clips
Step-by-step action described with vertical camera angle
An instructional clip that fits vertical feeds
AI Video Generator
Behind-the-scenes series
Consistent vertical scene details across multiple prompts
A matching set of portrait clips for a social series
AI Video Generator
Social media vertical content
Input: Portrait scene description with subject and motion details
Result: A vertical clip for Reels, TikTok, or Stories
Tool: AI Video Generator
Mobile-first marketing
Input: Product or brand scene with 9:16 framing and clear subject placement
Result: A portrait video optimized for phone viewing
Tool: AI Video Generator
Tutorial or how-to clips
Input: Step-by-step action described with vertical camera angle
Result: An instructional clip that fits vertical feeds
Tool: AI Video Generator
Behind-the-scenes series
Input: Consistent vertical scene details across multiple prompts
Result: A matching set of portrait clips for a social series
Tool: AI Video Generator
Limitations to know before generating
You can describe portrait scenes to aim for vertical size, but the tool does not guarantee exact aspect ratios. Review each result to confirm it fits your target platform.
If a clip comes out in a different aspect ratio, regenerate with clearer vertical framing language like '9:16' or 'portrait orientation' in the prompt.
Platform UI elements like captions and buttons often cover the top and bottom of vertical videos. Plan your subject placement accordingly.
Generated clips are drafts. Complex vertical compositions may require several prompt refinements to achieve the desired framing and motion.
You are responsible for confirming you have the rights for your input and the intended use of the output.
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