Kling 4.0 Flash AI Video Generator
The faster, lighter member of the Kling 4.0 family, built for frequent drafts.
Coming soonKling 4.0 Flash is not available yet. You can create videos with Kling 4.0 right now.
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Developed by Kuaishou
What Kling 4.0 Flash can do
The Kling 4.0 family's motion, made faster
This lion dance clip was published by Kuaishou with the Kling 4.0 release. Flash brings the same family's handling of motion and style to quicker, lower-cost generations.
Drafts for frequent creation
Kuaishou positions Flash for people who create every day and want to test many ideas. This clip, which brings a classic group portrait to life, was also published with the Kling 4.0 release.
Official examples on this page were published by Kuaishou and remain the property of their owner. Click a source link to see the original.
What Kling 4.0 Flash does well
Faster generation
Built for quick turnaround, so you can try more ideas before picking one to finish.
Built on Kling 4.0
It shares the Kling 4.0 model family's motion and audio improvements in a lighter package.
Up to 20 seconds at 720p
Kuaishou lists single clips of up to 20 seconds at 720p, which covers most social and product videos.
Compare Kuaishou models
| Model | Resolution | Length | Aspect ratios | Audio | Start from an image | Key difference | Best for |
|---|---|---|---|---|---|---|---|
| Kling 4.0 | 720p / 1080p | 3–30 s | 16:9 / 9:16 / 1:1 | Optional | Yes | Up to 30 s per take; stereo sound | Long takes and story videos |
| Kling 4.0 Flash | 720p | 3–20 s | 16:9 / 9:16 / 1:1 | Always on | No | Lighter 4.0 for fast drafts; coming soon | Quick drafts (coming soon) |
| Kling 3.0 | 720p / 1080p / 4K | 3–15 s | 16:9 / 9:16 / 1:1 | Optional | Yes | Full Kling 3.0; sound can be turned off | Motion and camera moves |
| Kling 3.0 Turbo | 720p / 1080p | 3–15 s | 16:9 / 9:16 / 1:1 | Always on | Yes | Lower cost, with sound always on | Videos with sound for less |
