Kling 4.0

Node type: video:kling_video_v4_t2v
Category: video

Description

Kling 4.0: video from text, a start frame (plus an optional end frame), or up to 10 reference images. 3 to 30 seconds at 720p or 1080p. Wire a clip into Source Video to edit it instead: swap a character or restyle the clip, with up to 10 reference images. The edit keeps the clip's length and shape and is priced on its measured length.

Pricing

• Cost: ~19 credits per seconds
• Per-second rate: The figure is the rate for a 5-second clip. Shorter clips can cost a bit more per second. You're always charged for the real length.

Variant family

• Family: kling_v4
• Is primary: yes
• All variants: video:kling_video_v4_t2v, video:kling_video_v4_i2v, video:kling_video_v4_r2v, video:kling_video_v4_edit

Canvas ports

These appear as port handles on the left side of the node.

ID	Label	Details
prompt	Prompt	TEXT (required) · multiline
video_url	Source Video	VIDEO. A clip to edit (swap a character, restyle, change the scene), 3 to 30 seconds, at least 700px on each side. Refer to it in the prompt as @Video1. The edit keeps the clip's length and shape and is priced on its measured length; Duration and Aspect Ratio are not used. It cannot be combined with a Start or End Frame; put images in Reference Images.
image_url	Start Frame	IMAGE
end_image_url	End Frame	IMAGE
reference_image_urls	Reference Images	IMAGE · list

Sidebar config

These render as form fields in the right-side config panel when the node is selected.

ID	Label	Details
duration	Duration (seconds)	NUMBER · 3…30 · default: 5
resolution	Resolution	TEXT · options: 720p, 1080p · default: "720p"
aspect_ratio	Aspect Ratio	TEXT · options: 16:9, 9:16, 1:1, 21:9 · default: "16:9". Ignored when only a Start Frame is wired: the video follows it.

Outputs

ID	Label	Type
video	Generated Video	VIDEO

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Auto-generated from the Wireflow node registry.