Kling O1 First Frame Last Frame to Video [Pro] Image to Video
Input
Type @ to reference relevant media.
Hint: Drag and drop image files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL. Accepted file types: jpg, jpeg, png, webp, gif, avif
Hint: Drag and drop image files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL. Accepted file types: jpg, jpeg, png, webp, gif, avif
Customize your input with more control.
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Kling O1: First Frame Last Frame to Video [image-to-video]
Kuaishou's Kling O1 delivers first-frame-last-frame video generation at $0.112 per second, animating precise transitions between two keyframes. Trading broad creative freedom for exact endpoint control, this specialized variant handles timelapse transformations, morphing sequences, and narrative scene transitions where both start and end states matter. Built for motion designers, creative studios, and developers who need deterministic video outputs rather than open-ended generation.
Built for: Timelapse animations | Product transformation sequences | Narrative scene transitions
Dual-Keyframe Control Architecture
Kling O1's dual-keyframe approach inverts the standard image-to-video workflow by accepting both start and end images as constraints, then synthesizing the motion path between them. Where traditional image-to-video models extrapolate freely from a single frame, this variant interpolates along a defined trajectory while respecting prompt-driven style guidance.
What this means for you:
- Deterministic endpoints: Generate 5 or 10-second videos where both opening and closing frames match your exact specifications, critical for brand-consistent sequences or narrative continuity
- Controlled transformation arcs: Animate seasonal changes, product evolutions, or character state transitions with predictable motion paths rather than AI-improvised endings
- Prompt-guided interpolation: Reference start and end frames via
`@Image1`and`@Image2`in prompts to direct style, camera movement, and scene dynamics during the transition - Flexible duration options: Choose between 5-second ($0.56) or 10-second ($1.12) outputs to match pacing requirements for social media clips or longer editorial sequences
Performance Scaling
Kling O1 operates within Kuaishou's broader Kling Video ecosystem, prioritizing frame-accurate transitions over generation speed.
| Metric | Result | Context |
|---|---|---|
| Duration Options | 5s or 10s | Configurable via `duration` parameter |
| Cost per Video | $0.56 (5s) or $1.12 (10s) | Based on $0.112 per second rate |
| Input Requirements | Start + end frame (both required) | Min 300px dimensions, 0.40-2.50 aspect ratio, 10MB max per image |
| Output Format | MP4 video | Single video file with synthesized motion path |
Technical Specifications
| Spec | Details |
|---|---|
| Architecture | Kling O1 |
| Input Formats | Start image (required), end image (required), text prompt with frame references |
| Output Formats | MP4 video |
| Duration Options | 5 seconds or 10 seconds |
| Prompt Syntax | Use `@Image1` and `@Image2` to reference uploaded keyframes in prompts |
| License | Commercial use via fal partnership |
How It Stacks Up
Kling Video Image to Video (v2.5-turbo) - Kling O1 specializes in dual-keyframe interpolation for transformation sequences where endpoint precision matters, making it ideal for timelapse effects and morphing animations. Kling Video v2.5-turbo emphasizes single-frame extrapolation with faster generation speeds for open-ended creative exploration.
Kling 2.0 Master Image to Video - Kling O1 trades generation flexibility for endpoint accuracy, constraining motion paths between two defined frames at a specialized price point. Kling 2.0 Master prioritizes maximum quality single-frame animation for premium production workflows requiring cinematic motion without endpoint constraints.