ComfyUI Node
Superside Kling 4 Image-to-Video
Kling 4 Image-to-Video on fal. Returns a native VIDEO plus the URL, so SaveVideo or PreviewVideo connects straight in. Endpoint: default - kling/v4/image-to-video fal price (2026-10-30): Video costs $0.157 per second at 720p and $0.235 per second at 1080p.
Superside Kling 4 Image-to-Video
- start_image_url
- end_image_url
- middle_image_1
- middle_image_2
- middle_image_3
- middle_image_4
- video
- video_url
◄api_key►
◄prompt►
◄multi_prompt►
◄resolution1080p►
◄duration5►
CategorySuperside
Inputs (11)
| Name | Type | Default | Description |
|---|---|---|---|
| start_image_url | IMAGE | Image to use as the first frame of the video. Max file size: 30.0MB, Min width: 300px, Min height: 300px, Min aspect ratio: 0.40, Max aspect ratio: 2.50, Timeout: 20.0s | |
| api_key | STRING | — | |
| promptopt | STRING | Text prompt. Either prompt or multi_prompt must be provided. | |
| multi_promptopt | STRING | Per-shot prompts for multi-shot generation. The video duration is the sum of the shot durations. JSON, as fal documents this field. | |
| end_image_urlopt | IMAGE | Image to use as the last frame of the video. | |
| resolutionopt | COMBO | 1080p | Output resolution. |
| middle_image_1opt | IMAGE | Ordered keyframes between the first and last frames (max 8). | |
| middle_image_2opt | IMAGE | Ordered keyframes between the first and last frames (max 8). | |
| middle_image_3opt | IMAGE | Ordered keyframes between the first and last frames (max 8). | |
| middle_image_4opt | IMAGE | Ordered keyframes between the first and last frames (max 8). | |
| durationopt | INT | 53–30 | Video duration in seconds (3-30). |
Outputs (2)
| Name | Type | Description |
|---|---|---|
| video | VIDEO | — |
| video_url | STRING | — |