AIFACECRAFTBest for: One long take of up to 30 s through set keyframes
Kling 4.0
- Length
- 3–30 s
- Resolution
- 720p, 1080p
- Frames
- First and last + 8 keyframes
- References
- 10 images, 4 videos
- Edit or Extend
- Edit
- 8 s at 1080p
- 47credits
Video Model Guide
Kling 4.0
Kling 4.0 is Kuaishou’s video model, launched on October 15, 2026. It makes clips of 3 to 30 seconds with stereo sound in one pass, from text, from a first and last frame with keyframes between them, from reference images and videos, or by editing a clip you already have.
One take, up to 30 seconds, with sound.
From 12 credits for a 3 s clip at 720p. Studio shows the exact total, with your plan’s benefits, before you generate. See pricing
Guide by AIFACECRAFT · Updated
Kling 4.0Example Brief
A rider in a red leather suit waits on a white hover bike on a rain-wet New York avenue. At the far end, a giant armoured turtle climbs over a bus. The camera pushes in slowly behind the rider; rain on metal, distant sirens.
Kling 4.0 vs Kling 3.0
What’s new in 4.0
Kuaishou launched Kling 4.0 on October 15, 2026, after opening a faster version, Kling 4.0 Flash, to a limited group of Kling AI users on September 28. Kling AI’s own comparison with Kling 3.0 shows where it moves furthest.
- Length per pass
- 30 sOne take, start to finishKling 3.0: 15 s
- Keyframes
- 10Set where the shot passes throughKling 3.0: none
- Reference images
- 10Plus 7 subjectsKling 3.0: up to 7
- Reference videos
- 530 s combinedKling 3.0: 1 video, 15 s
- Sound
- StereoTwo channelsKling 3.0: single channel
Kling 4.0 also edits video, taking up to five input clips with 30 seconds combined, and adds 21:9 ultrawide framing.
Kling’s Kling 4.0 page lists native 4K output as coming soon. In AIFACECRAFT, Kling 4.0 renders at 720p or 1080p.
Sources: Kling 4.0 vs Kling 3.0, the Kling 4.0 page and the launch announcement.
Kling 4.0 in AIFACECRAFT
Frames
Set a first frame, a last frame and up to 8 keyframes between them. With a first frame, the aspect ratio follows the image.
References
Up to 10 images and 4 videos, 30 s in total, set the cast, product or look. Or bring a 3–30 s clip to edit.
Length and sound
3, 4, 5, 6, 8, 10, 15, 20 or 30 s, at 720p or 1080p (1080p by default). Sound is generated with the picture, every time.
Credits per clip
- 5 s
- 29credits at 1080p720p · 20
- 10 s
- 58credits at 1080p720p · 39
- 15 s
- 87credits at 1080p720p · 59
- 30 s
- 174credits at 1080p720p · 117
Reference videos and edits also count the seconds of the input clip. Your plan’s benefits apply in the Studio, which shows the exact cost before you generate. See plans and credits.
Every video model in AIFACECRAFT
Kling 4.0 vs Kling 3, Seedance 2.5, Veo 3.1, Wan 3.0
All five are in the Video section. Every number below is read from the Studio’s own settings.
Best for: Reference-heavy work with up to 30 images, and extending a clip
Seedance 2.5
- Length
- 4–30 s
- Resolution
- 480p, 720p, 1080p
- Frames
- First and last
- References
- 30 images, 10 videos
- Edit or Extend
- Edit, Extend
- 8 s at 1080p
- 117credits
Best for: Short shots of up to 8 s that you then extend
Veo 3.1
- Length
- 4–8 s
- Resolution
- 720p, 1080p
- Frames
- First and last
- References
- 3 images
- Edit or Extend
- Extend
- 8 s at 1080p
- 80credits
Best for: Shorter clips of up to 15 s
Kling 3
- Length
- 3–15 s
- Resolution
- Standard, Pro
- Frames
- First and last
- References
- 3 images
- Edit or Extend
- —
- 8 s at Pro
- 34creditsFewest credits
Best for: Quick clips of up to 10 s, from 480p
Wan 3.0
- Length
- 4–10 s
- Resolution
- 480p, 720p, 1080p
- Frames
- First and last
- References
- —
- Edit or Extend
- —
- 8 s at 1080p
- 40credits
Credits are for a 8-second clip with sound at each model’s highest resolution in AIFACECRAFT. Developer details: Seedance 2.5 (ByteDance Seed), Veo 3.1 (Google). See also: Best AI video generators 2026.
A few useful answers.
When was Kling 4.0 released?
Kuaishou launched Kling 4.0 on October 15, 2026. A faster version, Kling 4.0 Flash, opened to a limited group of Kling AI users on September 28. The full model is now in the AIFACECRAFT Video section.
What is new in Kling 4.0 compared with Kling 3.0?
Clips up to 30 seconds instead of 15, up to 10 keyframes along the timeline, more reference images and videos, two-channel stereo sound and clip editing in the same model. Kling’s Kling 4.0 page lists native 4K output as coming soon; AIFACECRAFT renders Kling 4.0 at 720p or 1080p.
Is Kling 4.0 free?
No. Kling AI sells it through credit plans on its own site. In AIFACECRAFT, Kling 4.0 uses credits from your plan or a credit pack; the price table on this page is read from the Studio’s price list, and the Studio shows the exact cost before you generate.
Should I use Kling 4.0 or Seedance 2.5?
Both make 30-second clips with sound. Seedance 2.5 takes more reference images and can extend a clip; Kling 4.0 places keyframes between the first and last frame and edits clips with references. Run the same prompt in both: the Studio switches models without losing your prompt.
Is there a Kling 4.0 API?
Kling AI announced its Kling 4.0 API rollout on October 21, 2026, and its developer platform lists it as a preview. You don’t need an API key to use Kling 4.0 in AIFACECRAFT.
What should I check before using a result?
Watch the whole clip: faces, hands and thin objects drift most in long takes. Listen for lip sync, and check that each keyframe lands where you placed it.
Take the next step in Studio.
Select the model if it is available in your account and review its inputs, settings and credit estimate. This link opens the section; it does not preselect a model.
Keep Learning
Sources and Scope
- Kling AI: Kling 4.0 vs Kling 3.0
- Kling AI: Kling 4.0 video generation
- Kling AI launches Kling 4.0 (Bernama, October 19, 2026)
- Kling AI on X: Kling 4.0 API rollout (October 21, 2026)
Model details come from the developer’s documentation; settings were checked in AIFACECRAFT Studio. Example briefs are starting points for your own work. Artwork on this page comes from AIFACECRAFT collections.