Kling 4.0 AI Video Generator: Turn Your Stills into a 30-Second Scene
Your images set the story. Kling 4.0 connects the dots.
Already happy with an image? Don't describe it all over again. Use it as a keyframe, add the frames that follow, and tell the model how to move from one to the next.
- Up to 10 keyframes per clip, including both ends
- Any length from 3 to 30 seconds
- Export at 720p or 1080p
- A clear credit total before every render
Sample Videos
From Still Image to Kling 4.0 Video
Four steps take you from a single picture to a finished clip. Good source images do most of the heavy lifting.
Create or Collect Your Images
Generate frames with Nano Banana or GPT Image on Banana AI, or bring your own photos, renders, and sketches. Matching light and style between images makes the final motion far smoother.
Fill the Frame Slots
Open Frames to Video and place an image as the first frame, the last frame, or both. Middle frames mark the moments along the way, and you can drag them to reorder.
Describe the Motion
Skip the appearance and focus on the action. Say who moves, which way the camera travels, and when each change happens. For an idea with no images, use Text to Video instead.
Render and Refine
Pick a length and a resolution, confirm the credit total, and generate. A short 720p test tells you whether the motion works before you commit to a longer 1080p version.
Why Keyframes Beat Prompting Alone
Words leave a lot to chance. Images pin down the details, so the model only has to solve the motion.
A Clip That Ends Where You Need It
Two fixed images turn a vague request into a clear route. Set where the scene opens and where it closes, and Kling 4.0 works out the journey. That makes it a strong fit for transformations, packaging reveals, and any shot that has to cut neatly into the next one. Prefer to control only the ending? Fill in the last frame and leave the first slot blank.
Kling 4.0 Prompt Recipes
Copy a recipe, change the subject, and supply the frames it calls for. Each one is built around a single clear action.
Packaging Unboxing
First frame: a sealed kraft box on a linen cloth. Last frame: the perfume bottle standing beside the open box. Prompt: Top-down camera eases to eye level. Two hands fold back the flaps at 2 seconds and lift the bottle out. Warm window light, no text.
Seasons Passing
First frame: a lone oak tree in deep snow. Last frame: the same oak in full summer leaf. Prompt: Static wide shot. Snow melts, buds open, and leaves fill the branches across 12 seconds. The hill and horizon stay exactly in place.
Portrait Comes Alive
First frame only: your Nano Banana portrait of a sailor. Prompt: Slow dolly in. Wind lifts the hair, the sailor glances left, then looks back at the lens with a faint smile. Keep the face and clothing identical throughout.
Three-Shot Teaser
Text to Video, no frames. Prompt: 9-second teaser with hard cuts at 3 and 6 seconds. 0–3s: rain on a neon street. 3–6s: boots stepping through a puddle, close up. 6–9s: a figure turns under a red sign. No transitions or morphing.
Endless Loop
Put one image in both slots: a koi pond seen from above. Prompt: The fish circle slowly and ripples spread across the water. The camera never moves, and everything returns to its starting place on the last frame.
Comic Panels to Motion
Upload five comic panels in reading order. Prompt: Animate these panels as one continuous scene in the same ink style. Hold each composition briefly, then pan across to the next without changing any character design.
Where Kling 4.0 Fits Your Work
It helps most when a video has to stay faithful to images you have already approved.
Social Media Teams
Bring a campaign visual to life for Stories and Reels without a new shoot. The approved image stays intact, and the motion gives the post a reason to stop the scroll.
Product Sellers
Give a listing some movement using images you already own. A slow rotation or a simple in-use moment can show scale and detail better than another static angle.
Ad Designers
Hold the final brand frame steady and try several different openings. You get real variations to test, while the closing shot stays on brief every time.
Storyboard Artists
Feed in rough panels to preview timing and camera flow. Seeing a sequence move early makes it easier to spot weak beats before production begins.
Illustrators
Add gentle life to finished artwork, such as drifting clouds or a character's glance, for a portfolio, a cover, or a looping website header.
Teachers and Trainers
Show how something changes over time, from a melting glacier to a machine assembling. Two clear images can often explain more than a paragraph.
Kling 4.0 Questions and Answers
The details people ask about most, including limits, cost, and what is available on Banana AI right now.
You can create video from a text prompt or from your own images used as keyframes. Everything runs in the browser, and the same account also covers our image tools.
The limit is the clip length in seconds plus one, up to 10 frames in total. A 3-second video takes 4, a 5-second video takes 6, and anything 9 seconds or longer takes 10. First and last frames count toward that total.
Yes. Frames to Video only needs one image. Put it in the first slot to move forward from that picture, or in the last slot to build toward it.
Thirty seconds per generation. You can pick any whole number of seconds from 3 upward.
Two resolutions are on offer: 720p and 1080p. Prompt-only clips can be wide, tall, square, or ultrawide, with Auto as a fifth option. Keyframe clips always follow your images, so trim those to the final shape beforehand.
Not at the moment. 1080p is the highest setting on Banana AI. Our model provider lists 4K as coming soon.
It costs 29 credits per second at 720p and 43 credits per second at 1080p, so 5 seconds at 720p is 145 credits. The exact total appears before you generate. If a generation fails, the credits are returned.
JPEG, PNG, and WEBP, with a limit of 10MB per file. Sharp images in a matching style give the smoothest results.
Large differences in pose, lighting, or background are hard to bridge in a short time. Add a middle frame, lengthen the clip, or make your images more alike. Describing the transition in the prompt helps too.
Not on Banana AI yet. Kling 4.0 here covers text and keyframes only, so reference video, voice, and Omni Reference inputs are not part of this tool.
Give Your Best Image Somewhere to Go
Choose a picture you love, set it as a keyframe, and write what happens next. Kling 4.0 takes it from there.