Kling 4.0 Image to Video: Up to 30 Seconds From One Still
Last verified: October 29, 2026
Kling 4.0 generates up to 30 seconds of video natively. That means a single still can open into a long take or a connected sequence, with action, pacing and camera movement that keep developing across the clip. Using that with Kling 4.0 image-to-video takes three moves: upload your picture to the Image field, write the action in the Prompt box, and set Video Duration to the time that action really needs.
Large-scale motion and complex camera movement are among the most common weak points in AI video, and Kling 4.0 was built to make both more stable and fluid. That's the reason to choose it when your picture has to turn into real movement, like a sprint, a fight or a camera travelling around a subject, and not just a gentle drift.
For a working creator, this means assets you've already approved, like a key visual, a packshot or a character portrait, can become footage with the approved image as the starting point rather than a text description of it. Vidofy keeps the form short: the still, a prompt and two settings for length and resolution. If you only have a rough idea, Enhance Prompt sits under the prompt box.
Explore more image to video
Inputs, Length and Output at a Glance
The basics of the form, before you upload anything.
Input
Image (JPG, JPEG, PNG or WEBP, up to 10 MB) + a text prompt of up to 5,000 characters
Video Duration
3 to 30 seconds
Resolution
720P or 1080P
Output
1 video per run
How to Write Prompts That Kling 4.0 Animates Well
Describe the Movement, Not the Picture
Plan Long Clips as Beats in Order
Draft a Full Brief With Enhance Prompt
How to Animate an Image With Kling 4.0
Five steps take you from a still to a downloaded clip.
Common Problems When Animating an Image and How to Fix Them
What usually goes wrong, why it happens, and what to change before you run again.
My image won't upload or gets rejected.
My prompt is too long for the Prompt box.
I need the clip to run longer than the longest duration available.
I only got one video and want to compare a few takes.
Frequently Asked Questions
What makes one Kling 4.0 generation cost more than another?
The credit cost of a run is worked out from the options you choose and shown above the Generate button once you're signed in. It changes with Video Duration and Resolution. Getting suggestions from Enhance Prompt doesn't use credits.
Which image files can I upload, and how big can they be?
The Image field takes one picture in JPG, JPEG, PNG or WEBP format, up to 10 MB and at least 300×300 pixels. It's required, so you can't start a run without it. If your file is HEIC, TIFF or another format, export it to one of the accepted types first.
Do I have to write a prompt, or can Kling 4.0 animate the image on its own?
You do need a prompt: the Prompt box has to be filled in, along with the Image field, before you can generate. A short line naming the action and the camera move is enough to start with. The prompting techniques above show how to build it into a fuller brief.
Can Kling 4.0 animate illustrations and product photos, or only portraits?
Portraits, product photos, illustrations and other images all work as the starting picture, so drawn artwork and packshots are as welcome as photos of people. For artwork, describe motion that suits the medium, like clouds drifting in brushstrokes or a cape lifting in the wind, and keep any style words consistent with the illustration.