seedance-2.5/image-to-video/1080p
Seedance 2.5 1080p: Animate stills into sharp, natural 1080p video
Kling AI's Kling 4.0 Video Editing changes a 3-30 second source video from a text instruction while keeping the shot's motion.
Trading a reshoot for a written change, Kling 4.0 Video Editing helps product, ads, and post teams swap a prop, a place, or a style.
For developers, Kling 4.0 Video Editing on RunComfy can be used both in the browser and via an HTTP API, so you don't need to host or scale the model yourself.
Ideal for: Product Replacement | Background Changes | Style Passes
Kling 4.0 Video Editing needs a prompt and a source video of 3 to 30 seconds. Call the source @Video1. Extra reference videos start at @Video2. Reference images are @Image1, and saved subjects are @Element1 on Kling 4.0 Video Editing. The output frame follows the source. There is no aspect control on Kling 4.0 Video Editing.
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
prompt* | Yes (*) | string | Example line | Text | What Kling 4.0 Video Editing should change, and what should stay. |
video_url* | Yes (*) | string | Example clip | 3-30 s video URL | Source footage, addressed as @Video1. |
image_urls | No | array | Empty | 0-10 images | Stills Kling 4.0 Video Editing can use for a product, person, or style, addressed as @Image1. |
video_urls | No | array | Empty | 0-4 videos | Extra clips, addressed from @Video2. |
elements | No | array | Empty | 0-7 subjects | A front view plus up to three angles, or one 3-8 s video. At most three video subjects. |
duration | No | integer | Source length | 3-30, or empty | Empty follows the source on Kling 4.0 Video Editing. Set it when the output should be a different length. |
resolution | No | string | 1080p | 720p, 1080p | Output resolution for Kling 4.0 Video Editing. |
The source, extra videos, and video subjects together stay within 30 seconds on Kling 4.0 Video Editing.
Kling 4.0 Video Editing always bills counted seconds, because a source video is required. A counted second is the output length plus whichever is longer: the output length, or the total length of the input videos. Input videos are the source, any extra clips, and any video subjects. Each one is rounded up to a whole second, and their combined length is capped at 30 seconds. Still images add no fee. If you leave duration empty, the output length is the source length.
| Resolution | Per counted second |
|---|---|
| 720p | $0.07 |
| 1080p | $0.11 |
A 5-second source edited with Kling 4.0 Video Editing as a 5-second 1080p clip is 10 counted seconds, or $1.10. A 5-second 720p edit of that same source is $0.70. A 10-second 1080p output from a 3-second source is 20 counted seconds, or $2.20.
Seedance 2.5 1080p: Animate stills into sharp, natural 1080p video
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HappyHorse 1.0 Reference to Video fuses up to 9 reference images and a prompt into a coherent multi-character clip with stable identity.
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Kling 4.0 Video Editing changes a source clip from a text instruction while keeping the underlying motion. Typical jobs are a product swap, a background change, or a style pass on footage you already have.
Kling 4.0 Video Editing requires a prompt and a source video of 3 to 30 seconds. You can add up to ten reference images, up to four extra videos, and up to seven saved subjects. Call the source @Video1.
If you leave duration empty, Kling 4.0 Video Editing follows the source length, within 3 to 30 seconds. Set duration when the output should be shorter or longer than the source. The frame follows the source.
Yes. Upload the product as an image and mention it as @Image1 in the Kling 4.0 Video Editing prompt. Say what it replaces, and list what should stay, such as the hand, the light, and the camera.
Kling 4.0 Video Editing offers 720p and 1080p. 1080p is the default. There is no separate aspect control. The output frame follows the source video.
Open the Kling 4.0 Video Editing prompt with the change, then list what stays. "Edit @Video1" plus a short keep-list is clearer than rewriting the whole scene. Name any new sound in the same prompt.
Prototype Kling 4.0 Video Editing in the RunComfy Playground Web UI, then call the same model through the RunComfy API with the same video, prompt, and settings. Jobs spend usd or credits. New accounts usually start with a trial balance.
Kling 4.0 Video Editing bills counted seconds: the output length plus the longer of that length and the total input-video length. The rate is $0.07 per counted second at 720p and $0.11 at 1080p. A matched 5-second 1080p edit is $1.10.
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