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Models › Video models › Kling 4.0

Kuaishou

Kling 4.0 for TikTok ads

Newest Kling: up to 30s in one take with sound, 720p or 1080p

3–30sclip length
1080pbest resolution of 2
Native soundspeech and world audio in the render
up to 5reference images

Yes. Kling 4.0 renders vertical 9:16 video from 3 to 30 seconds with native sound, which is the shape a TikTok ad runs in. Hermoso plans the hook, renders the clip on Kling 4.0 and can post it to your TikTok account or hand you the file.

Why Kling 4.0 works for TikTok ads

  • Vertical 9:16 out of the box, so nothing is cropped to fit the For You feed.
  • Native sound: speech, music and room tone come out of the same render, and TikTok is watched with the sound on.
  • Up to 30 seconds in one clip covers the hook, the product and the call to action.
  • Attach up to 5 photos of your product so the real pack shows up, not a lookalike.

What TikTok ads need

Aspect ratio9:16 (1080 x 1920)
Length that holds attention9 to 15 seconds for most ads
SoundOn by default for viewers
Safe zoneText clear of the bottom fifth and the right edge

How to make one with Hermoso

  1. Tell Hermoso what you sell, or paste your product page.
  2. Ask for a TikTok ad on Kling 4.0. Hermoso writes the hook and plans the shots.
  3. Watch the render, ask for changes in plain English, and keep the version you like.
  4. Post it to TikTok from Hermoso, schedule it, or build a paused TikTok Ads campaign around it.

Just ask for it

In Claude, ChatGPT, Cursor or any assistant connected to Hermoso, ask in plain English. Or open Kling 4.0 from the model menu in the app.

Make a 12 second TikTok ad for our cold brew on Kling 4.0, a creator talking to camera, 9:16.
Three TikTok hooks for our running shoes, then render the best one on Kling 4.0.
Turn our best performing Reel into a TikTok ad on Kling 4.0 and schedule it for Friday.

Tips

  • Put the hook in the first second: a question, a reaction or the product mid-use.
  • Ask for on-screen text in quotes and say where it sits, clear of the bottom caption area.
  • Make three variants of the opening line and let the numbers pick the winner.

Make TikTok ads with Kling 4.0. Start free, and every feature is on every plan.

Try Kling 4.0 →   Kling 4.0 specs

Frequently asked questions

Can Kling 4.0 make TikTok ads?

Yes. It renders 9:16 vertical video from 3 to 30 seconds with sound, and Hermoso turns that into a finished ad you can post or upload.

Can Hermoso post the ad to TikTok for me?

Yes. Connect your TikTok account once and Hermoso can publish or schedule the video. Connect TikTok Ads and Hermoso uploads the video to your ad account and builds the campaign, paused for you to launch.

How much does a TikTok render on Kling 4.0 cost?

The exact credit price is shown in the app before every render and settled at cost. See pricing for what a credit is worth.