Cinematic Motion Control
Experience fluid, realistic movement in every video generated by the Kling 2.1 API. It simulates real-world physics to ensure that characters and objects move naturally within the scene.
Kling v2.1 Standard
The Kling 2.1 API offers industry-leading video generation for developers. This version delivers consistent motion and high resolution, making Kling the primary choice for professional creative workflows requiring reliable AI video output.
API Usage Examples
curl --request POST "https://gptproto.com/api/v3/kling/kling-v2.1-standard/image-to-video" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"prompt": "A tiny origami fox sailing a teacup across a moonlit puddle",
"negative_prompt": "",
"image": "",
"guidance_scale": 0.5,
"duration": 5
}'Kling v2.1 Standard pricing
Start from the cost of a single sample and pick a testing budget. GPTProto rates are 20% below list price.
Your usage
$0.224 / image
Related Models
All Models
| Model | Resolution | Input → Output | ||
|---|---|---|---|---|
| $0.22 per second | — | Input: Image Output: Video | |
| $0.22 per time | 2K · more | Input: TextInput: Image Output: Video | ||
| $0.09 per time | more | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | ||
| — | $0.11 per second | 480p · 720p | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | |
| $0.34 per second | 4k | Input: TextInput: Image Output: Video | ||
| — | $0.02 per second | 480p · 720p | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | |
| $0.34 per second | 4k | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | ||
| — | $0.04 per second | 480p · 720p | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | |
| $0.02 per second | 720p · 1080p · more | Input: ImageInput: VideoInput: Audio Output: Video | ||
| $0.09 per second | — | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | ||
| $0.07 per second | — | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | ||
| $0.03 per second | 540p · 720p · 1080p | Input: TextInput: Image Output: Video | ||
| $0.09 per second | — | Input: TextInput: ImageInput: Video Output: Video | ||
| $0.07 per second | — | Input: TextInput: ImageInput: Video Output: Video | ||
| $0.04 per second | 540p · 720p · 1080p | Input: TextInput: Image Output: Video | ||
| $0.09 per second | 720p · 1080p · 2k | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | ||
| — | $0.05 per time | — | Input: Video Output: Video | |
| — | $1.20 per time | — | Input: TextInput: ImageInput: Video Output: Video | |
| — | $3.20 per time | — | Input: TextInput: ImageInput: Video Output: Video | |
| $0.03 per second | 1080p · more | Input: Image Output: Video | ||
| $0.44 per time | — | Input: TextInput: Image Output: Video | ||
| $0.09 per time | 1K · more | Input: TextInput: Image Output: Video | ||
| — | $0.50 per time | — | Input: TextInput: ImageInput: VideoInput: Audio Output: Video | |
| — | $0.30 per second | 720p · 1080p | Input: TextInput: Image Output: Video | |
| — | $0.10 per second | 720p | Input: TextInput: Image Output: Video | |
| $0.28 per time | — | Input: Image Output: Video | ||
| $0.09 per time | — | Input: Image Output: Video | ||
| $0.39 per time | — | Input: Image Output: Video |
Core Features of the Kling 2.1 API
The Kling 2.1 API brings powerful video synthesis features to your application, focusing on realism, motion control, and high-speed generation.
Advanced Prompt Adherence
The Kling 2.1 API interprets complex textual instructions with high precision. This ensures that the visual output matches your creative vision, even when dealing with specific scene details.
High-Fidelity Rendering
Every frame produced via the Kling 2.1 API features professional-grade lighting and textures. This eliminates the 'uncanny valley' effect often found in lower-tier AI video generation models.
Scalable API Infrastructure
Built for production environments, the Kling 2.1 API handles high-volume requests without compromising on speed. GPTProto ensures low-latency access for real-time video creation workflows.
Kling 2.1 API Frequently Asked Questions
Find answers regarding Kling 2.1 API integration, video quality, and technical capabilities to help you build better AI video applications.
What is the Kling 2.1 API used for?
The Kling 2.1 API is designed for programmatic video generation, allowing developers to convert text prompts into high-quality video files. It is widely used in marketing, social media automation, and game development to create consistent, cinematic content without manual rendering. The Kling system ensures high-fidelity results that match professional standards, providing a scalable solution for businesses needing high volumes of video content.
How do I start using the Kling 2.1 API?
You can begin by creating an account on GPTProto.com and obtaining your API key. Our documentation provides clear endpoints for the Kling 2.1 API, including sample code in multiple languages. Once integrated, you can send POST requests to the Kling servers and receive video URLs as output. The process is streamlined to minimize setup time, ensuring that your team can focus on building features rather than managing complex AI infrastructure.
Does Kling 2.1 API support high resolution?
Yes, the Kling 2.1 API supports high-definition output suitable for professional screens. It maintains clarity and detail even in complex scenes involving fast motion or intricate textures. By utilizing the Kling 2.1 API, you ensure that your end-users receive crisp, clear visuals that rival traditional cinematography. This makes it an ideal choice for apps that prioritize visual aesthetics and require a premium feel for their generated media.
Can the Kling 2.1 API handle long videos?
The Kling 2.1 API is optimized for standard short-form durations, offering excellent temporal consistency across the duration of the clip. While specific limits depend on the request parameters, the Kling 2.1 API excels at maintaining subject identity and scene stability throughout the generation. This ensures that the video remains coherent from the first frame to the last, a critical requirement for professional video production workflows.
Is the Kling 2.1 API better than version 1.0?
Kling 2.1 API represents a significant upgrade over earlier versions, featuring improved prompt adherence and more realistic movement. The 2.1 version reduces common AI artifacts, resulting in smoother motion and more believable interactions within the video. Developers switching to the Kling 2.1 API will notice a marked improvement in the aesthetic quality of the outputs, making it a more reliable tool for diverse commercial projects.
What are the Kling 2.1 API costs?
Pricing for the Kling 2.1 API is based on usage, typically measured per second of generated video or per request. GPTProto offers competitive rates that allow you to scale your Kling usage as your application grows. By using our platform, you get a consolidated billing experience for the Kling 2.1 API along with other top-tier models. Check our pricing page for the most current rates and volume discounts available for enterprise users.
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