Seedance vs Kling: a spec comparison
Seedance and Kling cover similar ground: video from text, from a frame and between two frames. The differences are in the details. Seedance 2.5 renders up to 30 seconds and takes up to 30 reference images, and the family has 21:9 and an edit mode for existing video. Kling 3.0 generates sound with a switch, and Motion Control moves your character the way a source video does.
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Seedance and Kling specs side by side
| Parameter | Seedance | Kling |
|---|---|---|
| Developer | ByteDance | Kling |
| Versions | Seedance 2, Seedance 2 Fast, Seedance 2 Mini, Seedance 2.5 | Kling 3.0, Kling 3.0 Omni, Kling Motion Control, Kling O3 Image, Kling O1 Image |
| Modes | text to video, image to video, first and last frame, reference images, video edit | text to video, image to video, first and last frame, reference images, video edit, motion transfer, text to image, edit from photos |
| Duration | 4-30 s | 3-15 s; matches the source video |
| Resolution | 480p, 720p, 1080p, 4K | 720p, 1080p, 1K, 2K, 4K |
| Aspect ratios | 9:16, 16:9, 1:1, 3:4, 4:3, 21:9 | 16:9, 9:16, 1:1, 21:9, 2:3, 3:2, 3:4, 4:3 |
| Sound | on by default | on/off switch (Kling 3.0, Kling 3.0 Omni); no switch (Kling Motion Control) |
| References | up to 30 images, up to 10 videos | up to 10 images, up to 1 videos |
| Prompt | up to 4,000 characters | |
| Price from | from 12 tokens | from 2 tokens |
When to use Seedance
- The clip is longer than 15 seconds: Seedance 2.5 goes up to 30.
- You need a wide 21:9 frame: among the video models only Seedance has it.
- You have many references: up to 30 images and 10 videos on Seedance 2.5, up to 9 images and 3 videos on the other versions.
- You want to change a finished clip: Seedance has a video edit mode.
- You have an audio reference worth attaching to the prompt.
When to use Kling
- You want sound from the generation itself: Kling 3.0 has a sound switch.
- The motion is already on video: Motion Control repeats it with your character.
- You need a very short clip: Kling 3.0 starts at 3 seconds.
- You also need images from the same lineup: Kling O3 Image and Kling O1 Image.
Model pages
Frequently asked questions
Which makes longer clips, Seedance or Kling?
Seedance 2.5, with up to 30 seconds. Seedance 2, Kling 3.0 and Kling 3.0 Omni go up to 15 seconds.
Which one has 21:9?
For video, only Seedance, in all four versions. Kling video models offer 16:9, 9:16 and 1:1; Kling has 21:9 only for images in Kling O3 Image.
Which one has sound?
Kling 3.0 has a sound switch. Seedance has no switch, but you can attach an audio reference to the prompt.
Can I edit an existing video?
Yes, in Seedance: video edit mode changes an uploaded clip as you ask. Kling has no such mode, but Motion Control transfers motion from a video.
Which one does 4K?
Seedance 2, Kling 3.0 and Kling 3.0 Omni. Seedance 2.5 and Kling Motion Control go up to 1080p, Seedance 2 Fast and Mini up to 720p.