YouCam Integrates Newly Released Kling 4.0 API to Turn Photos into 30-Second Stories with Dialogue and Sound
Kling 4.0 supports 30 seconds of video in one generation, twice the length of Kling 3.0.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
As one of the first platforms to integrate the newly released Kling 4.0 API, YouCam brings the full model to mobile and web, giving creators a new way to make AI videos that tell a full story.
YouCam Integrates Newly Released Kling 4.0 API to Turn Photos into 30-Second Stories with Dialogue and Sound
Kling 4.0 in YouCam at a Glance
- Up to 10 keyframes: set the key moments of a story, like a storyboard
- 30 seconds in one generation: twice the length of Kling 3.0, as one continuous take
- Sound built in: dialogue, sound effects, and stereo audio come with the video
- Multilingual speech: 9+ languages and several English accents, with matching lip movement
- Mixed references: photos, character sheets, and video clips keep faces and products consistent
- Trend remakes: reuse the pacing and shots of a reference video with new products and people
Plan the Story Before Generating the Video with Up to 10 Keyframes
Keyframes let users define what should appear at selected points in a video. Rather than describing an entire sequence in one prompt, users can establish its opening, intermediate moments, and ending, then provide instructions for movement and camera direction.
Kling 4.0 supports up to 10 keyframes and up to 30 seconds per generation in YouCam. These controls let users structure a short film scene, a product launch video, or a character-led story before generating it.
For example, an AI filmmaker can storyboard a 30-second scene in which a traveler steps off a night train, crosses a crowded platform, spots a stranger holding her lost suitcase, and stops face to face with him as the train pulls away. The keyframes fix each story beat in place, while the prompt describes the action, camera movement, and dialogue that connect them.
“The hardest part of AI video has been getting the model to follow your plan instead of guessing,” said Alice Chang, Founder & CEO of Perfect Corp. “Kling 4.0 lets YouCam users set up to 10 moments in a story and decide what each character says, so the video ends up the way they imagined it.”
Keep the Same Faces and Products in Every Shot
A longer story only works if its people and objects stay the same from scene to scene. Kling 4.0 accepts many kinds of references in one task, including photos, character sheets that show a person from several angles, storyboards, and short video clips that show how someone moves or how the camera should travel. The model uses them together to keep faces, outfits, and product details consistent throughout the video.
A consumer electronics brand can upload photos of its new wireless earbuds, a character sheet for its on-screen host, and a short clip showing the camera move it wants, then generate a launch video in which the earbuds and the host look the same in every scene.
Develop Dialogue Alongside the Visual Story
Every Kling 4.0 video can come with its own soundtrack. The model generates dialogue, background sound, and sound effects together with the picture, outputs them in two-channel stereo, and matches mouth movement to speech more closely than earlier Kling models.
Trend Remakes with a Reference Video
Users can also start from a video they like. With reference videos, such as a popular unboxing format, a travel vlog, or one of their own best-performing posts, Kling 4.0 follows its pacing, shot order, and presentation style, then replaces the products and people with the user’s own.
A brand can take one proven format and turn it into a separate video for every product in its lineup, and a video creator can join a trend with their own characters and story without planning every shot again.
To learn more about Kling 4.0 in YouCam platforms, please visit: https://www.perfectcorp.com/consumer
About Perfect Corp.
Perfect Corp. (NYSE: PERF) is a global leader in AI and AR technology, redefining creativity across beauty, fashion, skincare, and digital content creation. Its YouCam suite of apps has been downloaded over 1.1 billion times globally, empowering users to create, edit, and express themselves through photo, video, and generative AI tools. The YouCam platform also includes a powerful web-based editor and a suite of developer APIs, providing creators, brands, and technology partners with seamless access to content creation capabilities across platforms.
For brands and professionals, Perfect Corp. offers an award-winning portfolio of enterprise technologies, including virtual try-on experiences for makeup, hair, jewelry, watches, and fashion accessories, as well as AI-powered skin and hair analysis.
With a brand portfolio that includes YouCam and Skincare Pro, and a network of over 800 global brand partners, Perfect Corp. is transforming the beauty experience through personalized, immersive, and intelligent innovation.
For more information, visit perfectcorp.com and follow us on LinkedIn at @Perfect-Corp.
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Source: Perfect Corp.