Kling 2.1 Pro API

Access Kling 2.1 Pro AI video generation using Puter.js API.

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Model Card

Kling 2.1 Pro is the mid-tier 1080p AI video model from Kuaishou offering enhanced sharpness, realistic lighting, and both first and last frame conditioning for precise transitions. It focuses on image-to-video generation with refined camera tools, sitting between Standard and Master in terms of quality and pricing.

Max Duration 5s

seconds

Frame Rate N/A

fps

Aspect Ratio N/A

supported

Release Date Apr 15, 2025

 

API Usage Example

Add Kling 2.1 Pro video generation to your app with just a few lines of code.
No API keys, no backend, no configuration required.

// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.txt2vid("A cat playing with a ball of yarn", {
    model: "kwaivgI/kling-2.1-pro"
}).then(video => {
    document.body.appendChild(video);
});
<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.txt2vid("A cat playing with a ball of yarn", {
            model: "kwaivgI/kling-2.1-pro"
        }).then(video => {
            document.body.appendChild(video);
        });
    </script>
</body>
</html>

View full documentation →

Frequently Asked Questions

What is this Kling 2.1 Pro API about?

The Kling 2.1 Pro API gives you access to Kling's video generation model through Puter.js. With just a few lines of JavaScript, you can integrate Kling 2.1 Pro into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created Kling 2.1 Pro?

Kling 2.1 Pro was created by Kling and released on Apr 15, 2025.

How do I access the Kling 2.1 Pro API?

You can access the Kling 2.1 Pro API with just a few lines of JavaScript — no API keys, no backend, and no configuration required. Include the Puter.js library in your project and start making calls right away. For more details, check out our documentation.

Does the Kling 2.1 Pro API work with React / Vue / Vanilla JS / Node / etc.?

Yes — the Kling 2.1 Pro API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add Kling 2.1 Pro video generation to your app without worrying about API keys or setup.

Read the Docs View Tutorials