Video generation
Available now

Kling 4.0

by Kling

Kuaishou's long‑take video model, now on Morphic.
Clips up to 30 seconds, with sound in every take.

10% off Kling 4.0 generations. The discount applies to Kling 4.0 generation costs only, not to plans, credit packs, or other models.

Kling 4.0

Key features

A low tracking shot races alongside a truck convoy crossing a salt flat at sunsetTry now

Technical specifications

3 to 30s

Kling 4.0 Flash runs 3 to 20 seconds

Up to 10

Plus first and last frame control

Up to 15

Images, videos, elements, and voice samples

Up to 1080p

720p and 1080p on Morphic

Use cases

Short drama episodes

Fit a full scene into one 30-second take, and reuse the same saved face and voice so the cast holds from episode to episode.

Product films and ad remakes

Reference the pacing and camera moves of an ad that already performs, then swap in a new product, lit and framed your way.

Dialogue in any accent

Write the exact line and name the accent, from Australian to Cantonese, and it comes back lip-synced in stereo.

Titles and signage

Quote the words in the prompt and they render legibly on signs, packaging, and title cards, holding steady as the camera moves.

Long single takes

Follow a subject through one continuous move, with tracking and orbit shots held steady from the first second to the last.

High-volume social clips

Kling 4.0 Flash handles the weekly batch: quick 720p takes for testing hooks and formats before you commit to a full render.

Prompt examples

Timed beats

0-8s: rain on a shop window. 8-20s: the owner flips the sign to open

Edit prompt

Keyframe story

Keyframe 1 a packed suitcase, keyframe 5 a train door, keyframe 10 a beach

Edit prompt

Accent dialogue

A tailor says Welcome back in English with a soft British accent

Edit prompt

Ultrawide take

21:9 single take tracking a cyclist along a cliff road at dawn

Edit prompt

Overview

Kling 4.0 is Kuaishou's latest video model, announced in the official Kling 4.0 release note on September 27, 2026. It makes 3 to 30 second clips at up to 4K, follows up to 10 keyframes, and takes up to 15 references across images, video clips, saved elements, and voice.

What Kling 4.0 does differently

Kling 4.0 gives one generation more time and more control. A full 30-second scene fits in a single take, keyframes place each beat where you want it, and references keep faces, products, and voices steady from shot to shot. Kling 4.0 Flash, the fast 720p tier, covers drafts and high-volume clips.

Kling 4.0 on Morphic

Kling 4.0 is live in the Morphic video model picker. Start from text, an image, a first and last frame, up to 10 reference images and 5 reference clips, or a video to edit, and get 3 to 30 second clips at 720p or 1080p with sound in every take. Build the scene on the Canvas and compare takes side by side with Kling 3.0, Seedance, Veo, and MiniMax. Kling 4.0 Flash is coming to Morphic soon.

Simple pricing

Get started for free today, with the option to upgrade or cancel anytime.

Basic

$19/ month
billed as $0 per year

2400 monthly credits

1 user only

All models

Workflows

Standard

$24/ month
billed as $0 per year

3625 monthly credits

1 user only

All models

Workflows

Pro

$45/ month
billed as $0 per year

6350 shared monthly credits

1 user

+ up to 4 more at extra cost

All models

Workflows

Max

$170/ month
billed as $0 per year

24650 shared monthly credits

1 user

+ up to 9 more at extra cost

All models

Workflows

Enterprise

For higher limits

Custom

pricing and billing terms

High-volume credits
Custom seat limits
All models
Workflows
Pricing Gradient

Free

For playing around

$0

forever free

Up to 20 credits
1 user only
Limited models
Workflows
Compare plan details

FAQs

What is Kling 4.0?
Kling 4.0 is Kuaishou's latest Kling video model, announced on September 27, 2026. It makes clips from 3 to 30 seconds at up to 4K, follows up to 10 keyframes, and takes up to 15 references at once across images, video clips, saved elements, and voice samples.
When did Kling 4.0 come out?
Kuaishou announced Kling 4.0 on September 27, 2026. It is now available on Morphic, and the faster Kling 4.0 Flash is coming to Morphic soon.
What's new in Kling 4.0 compared with Kling 3.0?
Clip length doubles from 15 to 30 seconds, and keyframe control grows from a start and end frame to up to 10 keyframes. Kling 4.0 also adds stereo audio, 8,000-token prompts, a 21:9 ratio, more reference slots, and 10-bit HDR output, which Kling lists as coming soon.
What is the difference between Kling 4.0 and Kling 4.0 Flash?
Kling 4.0 runs 3 to 30 seconds at 720p, 1080p, or 4K, with keyframes and first and last frame control. Kling 4.0 Flash is built for speed and value: 3 to 20 seconds at 720p in standard dynamic range, with text to video, image to video, and reference input.
What is Kling 4.0 Flash best for?
High-volume work: social batches, hook tests, product loops, and quick drafts. Flash trades length and resolution for speed and a lower cost per clip, then the version worth keeping moves up to the full Kling 4.0.
How long can a Kling 4.0 video be?
Up to 30 seconds in a single generation, or 20 seconds on Kling 4.0 Flash. Kling has also announced a video extension feature, marked coming soon, that lengthens an uploaded clip several times over, up to 2 minutes.
Does Kling 4.0 support 4K and HDR?
Kling 4.0 outputs at 720p, 1080p, and 4K. Kling lists 10-bit HDR at 1080p and 4K as coming soon, which keeps more detail in backlit, night, and high-contrast shots and gives more room when grading color. On Morphic, Kling 4.0 renders at 720p or 1080p.
How do I use Kling 4.0 on Morphic?
Pick Kling 4.0 in the Morphic video model picker, then write a prompt or add an image, a first and last frame, references, or a video to edit. Clips run 3 to 30 seconds at 720p or 1080p, with sound in every take.
Is Kling 4.0 discounted on Morphic?
Yes. Kling 4.0 generations on Morphic are 10% off. The discount applies only to what each Kling 4.0 generation costs. Plans, credit packs, and other models stay at their regular price.

More about Kling 4.0

Kling 4.0: the complete guide

How to use Kling 4.0: Kling 4.0 vs Flash, prompt anatomy, timed beats, keyframes, references, dialogue, on-screen text, and editing.

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