Video models
Kling 3.0 Pro vs Kling 4.0 Flash
Both run in Pixie Studio, so you can try each with the same prompt. Here's how they differ, from Pixie's own price list.
The short answer
- Kling 4.0 Flash makes longer clips: up to 20 seconds, against 15 for Kling 3.0 Pro.
- Only Kling 3.0 Pro makes its own sound; the other is silent (add music or a voice in Sound).
- Kling 3.0 Pro goes up to 1080p; Kling 4.0 Flash up to 720p.
- Only Kling 4.0 Flash takes reference pictures or videos, to keep a character or a move.
- Only Kling 3.0 Pro can end on a picture you choose.
- Kling 3.0 Pro is Pro quality and Kling 4.0 Flash is Standard.
Side by side
| Kling 3.0 Pro | Kling 4.0 Flash | |
|---|---|---|
| Maker | Kuaishou | Kuaishou |
| Quality tier | Pro | Standard |
| Price at 720p | Not offered | 20 Sparks/s ($1.00 for 5 s) |
| Price at 1080p | 48 Sparks/s ($2.40 for 5 s) | Not offered |
| Clip length | 3 to 15 seconds | 3 to 20 seconds |
| Makes sound | Yes | No |
| Starts from | A written prompt; A start picture, and an end picture to land on | A written prompt; A start picture to animate; References: up to 10 pictures, 5 videos (20 s of video in all) |
| Shapes | 16:9, 9:16, 1:1 | 16:9, 9:16, 1:1, 21:9 |
| Free plan | Paid plans | Paid plans |
Which to use
Kling 3.0 in 1080p with native voices and sound. Best at action scenes and people talking.
Quick, low-cost Kling 4.0 with image and video references. Best at action scenes.
Not sure? Leave Create on Auto: Pixie picks a model for each shot from what it needs (sound, references, length) and its budget.
Join the waitlist to try it
Run the same prompt on each and keep the one you like. The price shows first.