30 seconds in one take
Up to 30 seconds per generation, twice Kling 3.0's 15. Enough for a whole scene — an entrance, a line of dialogue and a reaction — without stitching clips.
NEWKuaishou's latest video model · October 2026
0:00
0:08
0:18
0:30+4 of 10 keyframes
Kling 4.0 AI Video Generator
Kuaishou's newest video model, now on animx. Up to 30 seconds in one take, stereo sound with lip sync, up to 10 keyframes and 15 references — on the same credits as every other model.
Text to videoImage to videoKeyframesReferences
0:000:080:180:30+4 of 10 keyframesAn astronaut drifts above a planet split by molten lava, debris tumbling past. Open on fire blooming across the lens, pull back to the wide reveal, then push in on the face inside the helmet as the shock lands. Low rumble and thin breathing in stereo.
Kling 4.0NEW30 s720p16:9≈ 2,826credits
- No Kling subscription needed
- 720p and 1080p
- MP4 with sound
Kling 4.030 s16:9Stereo
0:180:30
Timeline4 keyframes · 3 shots
30 s · 16:9 · 720p0:000:050:100:150:200:250:30
Shot 1: fire in the foregroundShot 2: the wide revealShot 3: push in on the face
0:000:080:180:30L
R
Multi-shotFire blooms → wide reveal → push in on the faceRumble and breathing, L/R
30 s
per take, twice Kling 3.0
10
keyframes on the timeline
15
references in one take
Stereo
sound with lip sync
1080p
4K and HDR coming soon
21:9
to 9:16 vertical
What's new
What's new in Kling 4.0
Kling 4.0, also called Kling 4, is Kuaishou's newest AI video model, released on October 15, 2026. It makes clips up to 30 seconds long in a single generation, with stereo sound, keyframes and reference files to control what happens on screen. On animx it sits next to Kling 3.0, Seedance 2.5 and Veo 3.1 on one credit balance — no Kling subscription needed.
Up to 10 keyframes
Place images on the timeline and Kling 4.0 passes through each one at the time you set. Plan a camera move, a change of light or a product turn from start to end.
15 references at once
Up to 10 images, 5 videos (30 s in total) and 7 subjects in one generation, so a face, an outfit or a product stays the same from the first second to the last.
Stereo sound with lip sync
Dialogue, singing, effects and ambience come out in two-channel stereo, made with the picture. Lips match speech in 10 languages, from English and Spanish to Hindi.
Coming soonNative 4K and 10-bit HDR are announced by Kuaishou but not released yet. Today Kling 4.0 renders in 720p and 1080p.
Kling 4.0 vs Kling 3.0
Kling 4.0 vs Kling 3.0: What changed
FeatureKling 3.0Kling 4.0
Length per take3–15 s3–30 s
Keyframes—Up to 10
Reference imagesUp to 7, or 4 with a video10 images + 7 subjects
Reference videos1, up to 15 s5, 30 s in total
References in one take715
SoundSingle channelTwo-channel stereo
Speech languagesChinese, English, Japanese, Korean, Spanish+ Portuguese, German, French, Hindi and more
Dynamic range8-bit SDR10-bit HDR (coming soon)
Aspect ratios16:9, 1:1, 9:16+ 21:9 ultrawide
Video editingNot built inBuilt in
Source: Kuaishou, "Kling 4.0 vs Kling 3.0" September 30, 2026.
Already on Kling 3.0?
Your prompts carry over
Switch the model in the generator and keep your prompt, images and credits. Kling 3.0 stays on animx for quick 5–15 second clips.
Kling 3.0Kling 4.0Choose Kling 4.0 when
- the take runs longer than 15 seconds
- one take needs several shots
- dialogue or music has to sound right
- the frame is 21:9
Choose Kling 3.0 when
- the clip is 15 seconds or shorter
- you are re-running a prompt tuned for 3.0
How it works
How to use Kling 4.0 on animx
TextImageKeyframesReferences
01
Choose a mode
Text to video for a scene from words, Image to video to start from a still, Keyframes to plan a shot frame by frame, References to keep a face or a product the same.
Shot
Slow aerial push over a sunflower field; a woman in white walks towards the horizon; wind and distant birds in stereo.
02
Write the shot
Describe the action, the camera and the sound in one prompt: who moves, how the camera follows and what we hear. Kling 4.0 reads prompts up to 8,000 tokens, enough to script a full 30-second take.
30 s1080p16:9Stereo
03
Set length and generate
Pick 3 to 30 seconds, 720p or 1080p and the aspect ratio. The credit cost shows next to Generate before you start; download the MP4 when the take is ready.
Examples
Kling 4.0 examples and prompts
Each example shows the prompt and settings behind it. Copy a prompt, or open it in the generator with the same length and resolution.
Fast actionKling 4.0 · 1080p · 10 s
0:10Prompt
A wolf boxer throws a three-punch combination as the camera whips around the ring; flashbulbs, crowd roar, gloves hitting hard.
1,410 credits
DialogueKling 4.0 · 1080p · 10 s
0:10Prompt
Close-up: a woman in gold earrings looks into the lens and says, "You kept me waiting." Red velvet curtain, low warm light, quiet room tone.
1,410 credits
Ultrawide 21:9Kling 4.0 · 1080p · 10 s
0:10Prompt
A slow orbit around a white pavilion on the coast at sunset, 21:9 frame; wind, distant gulls, soft waves on the left channel.
1,410 credits
KeyframesKling 4.0 · 720p · 30 s
0:30Prompt
One locked shot of a mountain lake from dawn to night: four keyframes set the light at 0, 10, 20 and 30 seconds; birds fade into crickets.
2,826 credits
Product with referencesKling 4.0 · 1080p · 5 s
0:05Prompt
Use three product photos as references: the bottle turns slowly on a wet rock as a wave breaks behind it at sunset; macro lens, slow push-in.
705 credits
Music performanceKling 4.0 · 1080p · 10 s
0:10Prompt
A singer in a red sequin jacket and dark glasses mouths the chorus as the camera circles her; red stage light, bass-heavy track in stereo.
1,410 credits
Specs
Kling 4.0 Specs
DeveloperKuaishou (Kling AI)
ReleasedOctober 15, 2026
Modes on animxText to video · Image to video · Keyframes · References
Length3–30 s per generation
Resolution720p and 1080p4K soon
Dynamic rangeSDR10-bit HDR soon
Aspect ratios21:9 · 16:9 · 1:1 · 9:16
SoundTwo-channel stereo: dialogue, singing, effects, ambience; lip sync
Speech languagesChinese, English, Japanese, Korean, Spanish, Portuguese, German, French, Indonesian, Hindi
KeyframesUp to 10 per generation
ReferencesUp to 15: 10 images, 5 videos (30 s in total), 7 subjects (3 with voice)
CameraTracking, orbit, push-in, pull-back; several shots in one take
PromptUp to 8,000 tokens
OutputMP4 with sound
Also announced
Kling 4.0 Flash
A lighter version of Kling 4.0 for quick clips. Kuaishou opened early access on September 28, 2026.
Length3–20 s
Resolution720p
On animxNot yet
Prompt tips
Writing for Kling 4.0
- 1Name the camera move: tracking, orbit, push-in or pull-back, and where it starts and ends.
- 2Write the sound into the shot: what we hear, who speaks and the exact line in quotes.
- 3Number the shots when one take has several, and give each its own camera and action.
- 4Use keyframes for moments that must look exact; let the prompt handle everything in between.
Compare
Which video model to choose
All of them run on one animx credit balance. Try the same prompt on two models and keep the take you like.
This page
Kling 4.0
Kuaishou
Long takes you can plan: keyframes, 15 references and stereo sound
Credits per clipfrom 471
Seedance 2.5
ByteDance
Long takes with sound and strong camera moves, up to 30 s
Credits per clipfrom 554.4
Google Gemini Omni
Google's fastest video model with native audio
Credits per clipfrom 300
Wan 3.0
Alibaba
Direct camera moves with native audio at a lower price
Credits per clipfrom 300
Pricing
What Kling 4.0 costs on animx
Clip length720p1080p
5 seconds471705
10 seconds9421,410
15 seconds1,4132,115
20 seconds1,8842,820
30 seconds2,8264,230
Kling 4.0 is billed by the second: 94 credits at 720p and 141 at 1080p, sound included. The exact cost shows next to Generate before you start.
Most popular
Plus
$39/ month, billed yearly
$49 month to month
- 10,000 credits every month
- = 21 Kling 4.0 clips of 5 s at 720p
- or 3 full 30-second takes
- All 40+ video and image models
Need more? Ultra Ultra — 30,000 credits for $99 a month billed yearly, = 63 five-second clips.
FAQ
Kling 4.0 FAQ
Kling 4.0 is the newest AI video model from Kuaishou, released on October 15, 2026. It makes clips up to 30 seconds long in one generation, with stereo sound, and it can follow up to 10 keyframes and 15 reference files.
Keyframes are images you place on the timeline. Kling 4.0 passes through each one at the time you set. References are files the model keeps consistent — up to 15 at once: 10 images, 5 videos with 30 seconds in total and 7 subjects such as a person or a product.
Your first take
Make your first 30-second take
Write the shot, add keyframes if you have them and let Kling 4.0 do the rest. Sound comes with it.
Also includedKling 3.0Seedance 2.5Gemini Omni FlashWan 2.7Happy HorseNano BananaSeedreamFLUX