Video model comparisonKling 4.0vsKling 3.0

The same family, eight months apart. What the upgrade adds, and what it costs.

15 free credits to start, no card needed.

Behind the title: Rush Hour, made with Kling 4.0.

The short answer

Kling 4.0 doubles the length to thirty seconds and adds keyframes, video references and stereo sound. Kling 3.0 stays the cheaper choice for a short clip.

In AIFACECRAFT, from the Studio’s own settings

Head to head.

Longest clip: Kling 4.0: 30 s; Kling 3.0: 15 s
Keyframes between first and last: Kling 4.0: 8; Kling 3.0: —
Reference images: Kling 4.0: 10; Kling 3.0: 3
Reference videos: Kling 4.0: 4; Kling 3.0: —
Top resolution: Kling 4.0: 1080p tier; Kling 3.0: Pro tier
Sound: Kling 4.0: Always on; Kling 3.0: Your choice
Edit or extend: Kling 4.0: Edit; Kling 3.0: —
Credits, 8 s at top resolution: Kling 4.0: 47; Kling 3.0: 34

Longer bars mean more, except credits, where the shorter bar costs less. Your plan’s benefits apply in the Studio, which shows the exact cost before you generate.

As announced.

What each developer says about its own model. AIFACECRAFT may offer a subset; the head-to-head above shows what you can set here.

Kling 4.0 and Kling 3.0 as announced by their developers, checked October 31, 2026
Feature	Kling 4.0	Kling 3.0
Developer	Kuaishou (Kling AI)	Kuaishou (Kling AI)
Released	October 15, 2026	February 2026 (user guide dated February 6)
Length per generation	3 to 30 s	3 to 15 s
Top resolution	Up to 4K in Kling’s table; its Kling 4.0 page marks native 1080p and 4K as coming soon	1080p in Kling’s user guide; 4K in its model comparison
Sound	Two-channel stereo, generated with the picture	Single channel
Frame control	First and last frame, up to 10 keyframes	First and last frame
References	Up to 10 images, 7 subjects and 5 videos (30 s combined)	Up to 7 images or subjects, or 1 video (up to 15 s) plus 4
Edit and extend	Edits up to five clips (30 s combined); extension to 2 minutes in total	Multi-shot, up to six cuts (3.0 Omni)
Where to use it	Kling AI web and apps, AIFACECRAFT	Kling AI web and apps for paid members, AIFACECRAFT

Sources, checked October 31, 2026: Kling AI: Kling 4.0 vs Kling 3.0 · Kling AI: Kling 4.0 page · Kling AI blog: Kling 4.0 rolled out to all users on October 15 · Kling AI: VIDEO 3.0 user guide · Kling AI: 3.0 Omni multi-shot guide. Prices and features change; check each site before you buy.

Where each wins.

Choose Kling 4.0 for

The clip runs longer than 15 seconds.
You need keyframes, reference videos or edits of an existing clip.
You want stereo sound.

Kling 4.0 guide

Choose Kling 3.0 for

A clip of 15 seconds or less is enough.
Your workflow is already tuned to Kling 3.0 prompts.
You start from a first frame with a few reference images.
Fewer credits for the same 8-second clip in AIFACECRAFT (34 against 47).

Kling 3.0 guide

Questions, answered.

Is Kling 4.0 worth upgrading from Kling 3.0?

If your clips run past 15 seconds, or you need keyframes, reference videos or editing, yes. For short clips, Kling 3.0 is still in AIFACECRAFT.

What does each cost in AIFACECRAFT?

For a 8-second clip with sound at each model’s top resolution, Kling 4.0 costs 47 credits (1080p tier) and Kling 3.0 costs 34 credits (Pro tier) in AIFACECRAFT, so Kling 3.0 is the lower-cost choice for that clip. Your plan’s benefits apply, and the Studio shows the exact cost before you generate.

Does Kling 4.0 replace Kling 3.0 in AIFACECRAFT?

No. Both are in the Video section; pick per clip.

Is Kling 4.0 in 4K?

Kling’s model table lists 4K, but its Kling 4.0 page marks native 1080p and 4K as coming soon. In AIFACECRAFT, Kling 4.0 renders at 720p or 1080p.

Does Kling 3.0 still have a use?

Kling AI itself says 3.0 remains useful for shorter, prompt-led, multi-shot work with native audio. In AIFACECRAFT it suits clips of up to 15 seconds.