From Gray-Box to Final Cast
A gray-box animation sets the choreography and the camera; reference images supply the cast and the location.
Kuaishou’s newest video model, now on Easy-Peasy.AI
Kling 4.0
Cinematic takes up to 30 seconds, with stereo sound.
Start from text, a photo or up to 10 keyframes, guide it with reference images and clips, then edit or extend the result — in 720p or 1080p, from 9:16 to 21:9.
3,482,705+ happy users
- Single-pass clips
- 3–30s
- Full HD output
- 1080p
- Ultrawide framing
- 21:9
- Sound in every clip
- Stereo
Official Examples
See What Kling 4.0 Can Do
Every clip on this page comes from Kling AI’s official Kling 4.0 release. Turn the sound on — the audio is generated with the picture.
01 / 7
Large-Scale Action
Full-body fight choreography that holds steady through fast moves, hard impacts and a crowd on its feet.
Four Formats
Frame It Like Cinema
Kling 4.0 renders 21:9 ultrawide alongside 16:9, 9:16 and 1:1. Pick the format before you generate and compose the shot for the screen it is made for.
An official Kling 4.0 example shot in 21:9. The guide previews how each format frames a scene — every format is generated natively, never cropped.
Omni Reference
Show It What You Mean
Give Kling 4.0 up to 10 images and 5 video clips in a single request. Name each one in your prompt — @Image1, @Video1 — and say what it is for.
- Up to 10 reference images
- Up to 5 clips, 30 seconds combined
- Clips guide the motion, camera and pacing
- Cited in the prompt by tag
Swap the Person and the Room
The take keeps its timing and its lines while a new character and a new living room replace the old ones.
Clear the Crowd
The passers-by in front of the band disappear while the street performance plays on.
Up to 10 Keyframes
Direct the Story Frame by Frame
Set the opening image, the closing image and up to eight moments in between. Kling 4.0 generates the motion that connects them, in the order you add them.
12345678910
First frameUp to 8 in-between framesLast frame
In the Video Generator, attach your images and pick Kling 4.0 Keyframes. Two images make a first-and-last-frame transition; more turn into a storyboard.
Any Look
From Claymation to Cyberpunk
The same model handles photoreal drama and stylized worlds. Hover over a style — or tap it — to play.
Six Ways to Create
Every Kling 4.0 Mode in One Place
Generate, direct with references and keyframes, then keep working on the clip — without leaving Easy-Peasy.AI.
T2V
Text to Video
Describe the scene, the camera and the sound, and get a 3–30 second take in 720p or 1080p.
- 16:9, 9:16, 1:1 and 21:9
- Stereo audio in every clip
Image to Video
Animate a photo and, if you like, lock the closing shot with an end image.
- Framing follows your image
- Optional last frame
Keyframes
Line up to 10 images and Kling 4.0 connects them into one continuous take.
- First, in-between and last frames
- Played in the order you add them
Omni Reference
Combine images and video clips to control the characters, the look and the motion.
- 10 images · 5 clips
- @Image1-style prompt tags
Video Edit
Upload a 3–30 second clip and describe the change. The scene, the motion and the original sound stay.
- Up to 4 reference images
- 720p or 1080p
Video Extend
Add 3–30 seconds to the end of a clip. The new part continues from the last frame and is joined to the original.
- Your original stays intact
- Only the new seconds are billed
Simple Pricing
Know the Cost Before You Create
Kling 4.0 is billed per second of video. Pick what you are making, how long it runs and the resolution.
- No base fee — you pay for the seconds you render
- Reference images are free to add
- Available on all paid plans
5s
Credits
40
3s30s
Attaching reference video clips adds to the price, because the reference footage is processed too. The exact total is always shown before you generate.
Specifications
Kling 4.0 at a Glance
- Video length
- 3–30s
- Per generation or extension
- Resolution
- 1080p
- Or 720p at two-thirds of the price
- Formats
- 21:9
- 16:9 · 9:16 · 1:1
- Audio
- Stereo
- Generated with every clip
- Keyframes
- 10
- First, last and 8 in between
- Reference images
- 10
- Cited as @Image1, @Image2…
- Reference clips
- 5
- 30 seconds combined
- Watermark
- None
- Clean, logo-free downloads
- Edit source
- 3–30s
- Keeps the original sound
- Languages
- 9+
- Spoken dialogue and on-screen text
Prompt Guide
Write Prompts Kling 4.0 Can Follow
Direct the camera and the cuts
Say how the shot moves and when it changes. Kling 4.0 handles tracking, orbiting and handheld moves, and several shots in one take.
Example prompt
Low tracking shot behind a sports car drifting across white dunes, sand spraying toward the lens. Cut to a wide aerial as the car straightens out.
Write the sound into the scene
Every clip has stereo audio, so put dialogue in quotes and describe the music and the ambience.
Example prompt
In a recording booth, a young singer performs a soft ballad into the microphone. Close vocals, light room echo, a faint click of headphones.
Give every reference a job
When you attach images or clips, name each one and say what it controls.
Example prompt
@Image1 is the dancer. Copy the camera move from @Video1. She says: “Let’s begin.”
Order keyframes like a storyboard
Add the frames in the order they should appear and describe what changes between them.
Example prompt
Open on the empty stage, the dancer enters by the second frame, and the lights go down by the last one.
Testimonials
Read the comments that people have made on public platforms.
Jeff Wilson
By far the best compilation AI utility
By far the best compilation AI utility out there. Period. We have tried multiple platforms that would work for us - a small business - and it was a bit overwhelming two years ago. Easy-Peasy has been a godsend. So many freaking tools and no fewer than 10 (of the 200) are ones we use at least on a weekly basis. Ironically, their human support is one of the most appreciated elements.
Cody Crabb
Great service, Best AI tool
Easy-Peasy AI
Blanca Marin
Very Good AI…
I really liked the easy-peasy AI service. It's a great tool, but I also had to ask them for a refund because I chose the wrong plan, and they were very quick to respond to my request. They looked into my case and I got my money back without any problems. Of course, I will continue to use it for my projects.
Easy-Peasy AI
FAQ
Frequently Asked Questions
Everything you need to know about Kling 4.0
What is Kling 4.0?+
Kling 4.0 is the newest video model from Kling AI, Kuaishou’s video platform, released in October 2026. It generates 3–30 second clips with stereo sound from text, images, keyframes and multimodal references, and it can edit and extend existing videos.
How long can a Kling 4.0 video be?+
Each generation is 3 to 30 seconds long. The Extend Video tool adds another 3 to 30 seconds to a clip, and you can extend the result again.
Which resolutions and formats can I use?+
Easy-Peasy.AI renders Kling 4.0 in 720p or 1080p, in 16:9, 9:16, 1:1 or 21:9. Image-to-video and keyframe videos follow the shape of your first image.
Does Easy-Peasy.AI offer Kling 4.0 in 4K or HDR?+
Not yet. Kling has announced 4K and 10-bit HDR output for its own platform; on Easy-Peasy.AI, Kling 4.0 renders in 720p and 1080p.
Does Kling 4.0 generate sound?+
Yes. Every clip comes with synchronized stereo audio — dialogue, music, effects and ambience — so describe the sound in your prompt. Edits keep the original clip’s sound.
What can I use as references?+
Up to 10 images and 5 video clips (30 seconds combined). Refer to them in your prompt as @Image1 and @Video1, in the order you added them.
How do keyframes work?+
Add up to 10 images and choose Kling 4.0 Keyframes. The first image opens the clip, the last one closes it, and the others appear in between in the order you added them.
How much does Kling 4.0 cost on Easy-Peasy.AI?+
Generating and extending cost 8 credits per second at 720p and 12 at 1080p. Editing costs 10 credits per second of your clip at 720p and 15 at 1080p. Attaching reference video clips adds to the price. The exact total is shown before you start.
Can I use Kling 4.0 on the Free plan?+
Kling 4.0 is available on paid plans. On the Free plan you can try other models in the Video Generator.
Can I use Kling 4.0 videos commercially?+
Yes, on paid plans, subject to the Easy-Peasy.AI Terms of Use, Kling’s usage policies and your rights to any images or clips you upload.
Do the videos have a watermark?+
No. Videos you create with Kling 4.0 on Easy-Peasy.AI come without a visible watermark.
Where do the examples on this page come from?+
They are Kling AI’s own Kling 4.0 demonstrations, published in the official Kling 4.0 release note.
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