Video Gen Editor

Kling VIDEO 4.0: Long Shots With Keyframe Control

Kling VIDEO 4.0 is Kling AI's all-in-one video model. It makes 720p or 1080p clips anywhere from 3 to 30 seconds long, and it lets you steer them closely: pin the opening, the ending and up to eight moments in between with frame images, hold a look with reference images and videos, or hand it an existing clip and describe what to change.

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Kling VIDEO 4.0 specs

Made by
Kling AI
Clip length
3 to 30 seconds
Resolutions
720p, 1080p
Shapes
16:9, 1:1, 9:16, 21:9
Starts from
Text, Image, Video
Extra inputs
Up to 10 keyframes, up to 10 reference images, up to 5 reference videos, an input video
Sound
Generated with the video

Kling VIDEO 4.0 pricing

Kling VIDEO 4.0 price per resolution
ResolutionPer second5-second clip10-second clip
720p$0.157$0.785$1.57
1080p$0.235$1.17$2.35

These are the published per-second rates. The composer shows the exact estimate for your settings before you generate, and failed generations aren't charged. Prices last checked September 24, 2026. Credits come with our plans.

What it's good at

  • Any length from 3 to 30 seconds in a single generation.
  • Up to 10 frame images per clip, so you can plan a shot like a storyboard.
  • Up to 10 reference images and 5 reference videos to keep subjects, style and motion consistent.
  • Frame images, references and an input video can be combined in one request.
  • Prompt-based editing of a video you already have.
  • 720p or 1080p in 16:9, 9:16, 1:1 and a wide ~21:9.

Best for

  • Storyboarded shots

    Lay out the key moments as stills and let the model fill in the motion between them.

  • Long single takes

    Walkthroughs, reveals and narrative scenes that need more than a few seconds.

  • Editing footage

    Attach a clip as the input video and describe what should change.

  • Consistent characters and products

    Reference images keep them on-model. See the AI UGC video generator.

Things to know

  • It's a premium model: $0.235 a second at 1080p, so a 30-second 1080p clip is about $7.05. Draft at 720p ($0.157 a second).
  • An input video or reference videos raise the rate, to $0.282 a second at 1080p.
  • It tops out at 1080p. For 4K, use Gemini Omni Flash 1.1 or LTX-2.5 Fast.
  • With reference images, reference videos or an input video, a prompt is required. Only a first frame can run without one.
  • Without any frame images or reference media, pick an exact size.

A Kling VIDEO 4.0 prompt to try

A lighthouse keeper climbs the spiral stairs with a lantern, the camera following close behind. At the top she steps out onto the gallery as a storm rolls in over the sea, waves crashing on the rocks below, wind and thunder.

Add frame images for the stairwell and the gallery to lock in both ends of the move. Refer to attached media in the prompt as <<<image_1>>> or <<<video_1>>>, numbered in the order you add them.

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Frequently asked questions

How long can a Kling VIDEO 4.0 video be?

Anywhere from 3 to 30 seconds per generation. The default is 10 seconds.

How much does Kling VIDEO 4.0 cost?

$0.157 a second at 720p and $0.235 at 1080p, so a 10-second 1080p clip is about $2.35. With an input video or reference videos it's $0.188 a second at 720p and $0.282 at 1080p.

Can Kling VIDEO 4.0 use more than a first and last frame?

Yes. Add up to 10 frame images and the model spreads them through the clip as keyframes, which is how you plan a shot that moves through several moments.

Can Kling VIDEO 4.0 edit an existing video?

Yes. Attach the clip as the input video and describe the change, such as “turn the daylight into a rainy night, keep the people the same”.