Video model comparisonKling 4.0vsVeo 3.1

One long take against short, polished shots. Compared on what you can set 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 makes one take of up to thirty seconds and steers it with keyframes. Veo 3.1 makes eight-second shots that you build on by extending.

In AIFACECRAFT, from the Studio’s own settings

Head to head.

Longest clip: Kling 4.0: 30 s; Veo 3.1: 8 s
Keyframes between first and last: Kling 4.0: 8; Veo 3.1: —
Reference images: Kling 4.0: 10; Veo 3.1: 3
Reference videos: Kling 4.0: 4; Veo 3.1: —
Top resolution: Kling 4.0: 1080p tier; Veo 3.1: 1080p tier
Sound: Kling 4.0: Always on; Veo 3.1: Always on
Edit or extend: Kling 4.0: Edit; Veo 3.1: Extend
Credits, 8 s at top resolution: Kling 4.0: 47; Veo 3.1: 80

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 Veo 3.1 as announced by their developers, checked October 31, 2026
Feature	Kling 4.0	Veo 3.1
Developer	Kuaishou (Kling AI)	Google DeepMind
Released	October 15, 2026	October 15, 2025
Length per generation	3 to 30 s	8-second clips (4 and 6 s also offered), extendable
Top resolution	Up to 4K in Kling’s table; its Kling 4.0 page marks native 1080p and 4K as coming soon	1080p and 4K, by upscaling
Sound	Two-channel stereo, generated with the picture	Native audio
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 3 images
Edit and extend	Edits up to five clips (30 s combined); extension to 2 minutes in total	Extend and insert objects
Where to use it	Kling AI web and apps, AIFACECRAFT	Google Flow, the Gemini app (Ultra), Google Vids, 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 · Google: Veo 3.1 and Flow updates · Google DeepMind: Veo · Google: Veo 3.1 Ingredients to Video, 1080p and 4K upscaling · Gemini API: Veo 3.1 preview shutdown · Google: Gemini Omni 1.1 Flash. Prices and features change; check each site before you buy.

Where each wins.

Choose Kling 4.0 for

One continuous take longer than 8 seconds.
Keyframes between the first and last frame.
Reference videos, or editing an existing clip.
Fewer credits for the same 8-second clip in AIFACECRAFT (47 against 80).

Kling 4.0 guide

Choose Veo 3.1 for

Short shots that you extend one after another.
A workflow already built around Google Flow or Gemini.
You want to choose whether sound is generated.

Veo 3.1 guide

Questions, answered.

Which makes longer videos, Kling 4.0 or Veo 3.1?

Kling 4.0 makes up to 30 seconds in one take. Veo 3.1 makes 4, 6 or 8 second clips that you can extend.

Which costs less in AIFACECRAFT?

For a 8-second clip with sound at each model’s top resolution, Kling 4.0 costs 47 credits (1080p tier) and Veo 3.1 costs 80 credits (1080p tier) in AIFACECRAFT, so Kling 4.0 is the lower-cost choice for that clip. Your plan’s benefits apply, and the Studio shows the exact cost before you generate.

Do both make sound?

Yes. Kling 4.0 always generates sound; in AIFACECRAFT, sound for Veo 3.1 follows the Video panel setting.

Is Veo 3.1 still Google’s newest video model?

No. Google’s newer video model is Gemini Omni; Gemini Omni 1.1 Flash became generally available on August 27, 2026. Google shut down the Veo 3.1 preview models in the Gemini API on October 22, 2026, while Veo 3.1 stays in Flow, in Gemini plans and in AIFACECRAFT.