Kling 2.1
Kling 2.1 is Kuaishou's multi-tier video model with Standard, Pro, and Master modes for image-to-video and text-to-video creation. It supports 5-10 second clips, optional tail images for Pro, and aspect ratio control for Master text-to-video.
Parameters
Choose the tier and input type for generation.
Describe the desired video, including subject, motion, and style.
Required for image modes. Upload 1 image for Standard/Master image modes, or up to 2 images for Pro (second is tail).
Drag and drop up to 2 files or click to upload
JPG, JPEG, PNG up to 10MB (max 2 files)
Choose 5 or 10 seconds. Pricing is per video.
Words or styles to avoid in the output.
Guidance strength for the prompt (0-1).
Output
Generated content will appear here
Everything You Need to Know About
Kling 2.1 API
Comprehensive guide to understanding, implementing, and maximizing the potential of the Kling 2.1 API for your projects
What is the Kling 2.1 API?
The Kling 2.1 API is a powerful solution for developers. Kling 2.1 API is Kuaishou's tiered video generation API with Standard, Pro, and Master modes for image-to-video and text-to-video. The Kling 2.1 Master API unlocks text-to-video plus aspect ratio control, the Kling 2.1 Pro API adds tail-image continuity, and the Kling 2.1 Standard API delivers fast, cost-efficient image-to-video generation.
Kling 2.1 API Features & Capabilities
Discover what makes the Kling 2.1 API the perfect choice for your projects
Kling 2.1 API offers Standard, Pro, and Master tiers for different quality levels
Kling 2.1 Standard API delivers cost-efficient image-to-video generation
Kling 2.1 Pro API adds tail-image continuity for smoother shots
Kling 2.1 Master API enables text-to-video plus advanced controls
Up to 10-second clips with 5s/10s duration options
Aspect ratios for Kling 2.1 Master API text-to-video: 16:9, 9:16, 1:1
Negative prompt and CFG scale controls for precise outputs
Async task workflow with polling or callbacks
Kling 2.1 API Use Cases
See how the Kling 2.1 API can transform your workflow
Kling 2.1 API integrations for SMB marketing teams
Ideal for Kling 2.1 API integrations for SMB marketing teams workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Product teasers generated from keyframes
Ideal for Product teasers generated from keyframes workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Brand animations built from still images
Ideal for Brand animations built from still images workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Storyboard previews for creative teams
Ideal for Storyboard previews for creative teams workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Kling 2.1 Master API concepting for text-to-video storyboards
Ideal for Kling 2.1 Master API concepting for text-to-video storyboards workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Before/after transformations using tail images
Ideal for Before/after transformations using tail images workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Localization-safe visual variations
Ideal for Localization-safe visual variations workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Rapid prototyping of cinematic shots
Ideal for Rapid prototyping of cinematic shots workflows that demand high-quality results, fast processing times, and reliable performance at scale.
Kling 2.1 API Technical Specifications
Detailed technical information and API capabilities
Max Duration
Up to 10 seconds
Tiers
Standard, Pro, Master
Inputs
Text or image with optional tail image
What Developers Say About the Kling 2.1 API
Real feedback from developers using the Kling 2.1 API
"Incredible quality and speed. The Kling 2.1 API has transformed our content creation workflow."
John Smith
Senior Developer
"The Kling 2.1 API is easy to integrate and consistently delivers high-quality results. Highly recommended!"
Maria Johnson
Product Manager
"The API documentation is clear and the model performance exceeds expectations."
Alex Lee
Tech Lead
Important Considerations
Understanding the limitations helps you make informed decisions
Max video duration is 10 seconds
Supported durations are 5s or 10s
Standard and Master image modes require exactly 1 image
Pro image mode supports 1-2 images (second is tail)
Aspect ratio applies only to Master text-to-video
CFG scale must be between 0 and 1
Content must comply with provider safety policies
Ready to Get Started with the Kling 2.1 API?
Join thousands of developers who are already using the Kling 2.1 API to create amazing applications.Start with our playground or dive straight into the Kling 2.1 API documentation.