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Video · TikTok

AI video for TikTok

Make it for the phone. A TikTok clip is vertical, instant and single-minded — here's a real 9:16 generation built for the feed, the landscape-vs-vertical proof, and the settings that matter.

A young creator in a plain black hoodie dancing toward the camera on a neon-lit street, framed vertically for a phone screen — a still from an AI-generated TikTok-style clip.
On this page
  1. A feed-ready clip, generated tall
  2. Why 9:16 — the same scene, two shapes
  3. How to make a TikTok clip
  4. FAQ
The short answer

Set Video Ratio to 9:16 in the settings chip, describe one subject in bold motion on a simple neon-or-colour background, and generate — the clip comes out phone-shaped, like the real dancer demo here. Add trending sound and captions in TikTok's own editor when you post, and label realistic AI content with TikTok's AI label.

A feed-ready clip, generated tall

This is a real, unedited Kling generation at the 9:16 setting — one creator, bold motion, a graphic neon background, framed for a phone. The exact prompt is under the clip:

Copy — the TikTok-style clip

Vertical phone-screen video: a young streetwear creator in a plain black hoodie with no printed text or graphics does a quick playful dance toward the camera on a night city street, the background lit by soft abstract neon glow in pink and blue with no readable signs or lettering anywhere, energetic and fun, framed tall for a phone screen, camera locked off.

Built for the swipe. The subject is already moving in frame one, the background is pure colour and glow, and the tall frame fills the feed — nothing here waits to get good.

Why 9:16 — the same scene, two shapes

The same prompt, generated twice — once landscape, once vertical. On a phone, the difference is the whole game: the 16:9 version becomes a letterboxed strip, while the 9:16 version owns the screen:

16:9 — the landscape take

9:16 — the vertical take

Same scene, different job. Keep 16:9 for YouTube and the web, 1:1 for feeds that crop square — and give TikTok the tall one. Ratio is a generation-time choice, not a crop: generate at the shape you'll publish.

How to make a TikTok clip

1

Switch the ratio to 9:16 before you generate

In the settings chip under the prompt box, set Video Ratio to 9:16. TikTok is a fullscreen vertical feed, and a clip generated tall fills the phone; a landscape clip gets letterboxed into a strip. The demo above was generated at exactly this setting.

2

Design for the first second

The feed decides in one swipe. Put the subject front and centre, already moving — a dance step toward the camera, a reveal, a reaction — rather than a slow establishing build. The energy has to be visible in the poster frame, not a promise for later.

3

One subject, bold motion, simple background

A phone screen is small: one person or object, one clear action, and a background that stays graphic — glow, colour, texture — reads instantly. Describe clothing as plain and keep lettering out of the scene, since generated text comes out garbled.

4

Finish it in TikTok

Kling hands you the clip; the TikTok side — trending sounds, captions, stickers, posting — happens in the TikTok editor. Upload the vertical file, add the sound there, and let the app's own tools do the platform-native finishing.

Kling makes the clip; TikTok makes it a post

There's no TikTok mode — you set the 9:16 ratio and design for the feed: one subject, instant motion, a graphic background, plain clothing with no lettering (generated text comes out garbled). Sounds, captions, stickers and posting happen in TikTok's own editor, and TikTok asks creators to label realistic AI-generated content when publishing. Generate the clip here, finish it there.

Frequently asked questions

What size is a TikTok video?
Vertical 9:16 — a fullscreen phone frame. Generate at the 9:16 setting so the clip fills the feed natively; a 16:9 clip shrinks to a letterboxed strip with dead space above and below, which is exactly what the comparison on this page shows.
How do I make an AI video for TikTok?
Set the ratio to 9:16, describe one subject in bold motion on a simple graphic background, and generate — the dancer demo here is that recipe, unedited. Then upload the file in TikTok and add sound and captions in the app's editor, where the trending audio lives.
Can Kling add the music and captions?
That part belongs to TikTok. Kling can render ambient sound with Native Audio, but trending sounds, licensed music and captions are added in TikTok's own editor when you post — which is also what keeps a clip eligible to ride a trending audio.
Do AI videos work on TikTok?
Yes — short, energetic, loopable clips fit the format well. TikTok asks creators to label realistic AI-generated content, so turn on the AI-generated content label when you post anything that could be mistaken for real footage. Original characters and clean, unbranded scenes keep it safe to publish.
Kling AI Team
Kling AI

Written and tested by the Kling AI team, who build the image, video and effects tools behind Kling.

Fill the feed

Generate a vertical clip now

Set 9:16, put the subject in motion, and let Kling render a feed-ready clip.