Kling 3.0 introduces a groundbreaking approach to video generation by allowing users to input a first and last frame image to create a seamless video sequence. This innovative technique, known as First Last Frame to Video (FLF2V), leverages the Kling 3.0 model to interpolate between the two frames with remarkable precision. Unlike traditional video generation methods that rely heavily on fixed frame rates and linear transitions, Kling 3.0 provides a dynamic multi-shot generation process. This enables precise control over individual elements within the video, allowing for adjustments in motion, timing, and composition.
One of the standout features of Kling 3.0 is its support for multilingual prompts, making it accessible to a global audience and versatile across different languages and contexts. This capability not only enhances the user experience but also broadens the potential applications of the workflow. By integrating advanced AI techniques with intuitive user input, Kling 3.0 sets a new standard in video generation, offering unprecedented flexibility and creativity for content creators, filmmakers, and digital artists.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
Run it from TypeScript or Python with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
// Install (beta)
npm i @comfyorg/sdk
// Run "Kling 3.0: First Last Frame to Video" (TypeScript)
import { Comfy } from "@comfyorg/sdk";
const client = new Comfy({ apiKey: "comfyui-..." });
// This workflow, exported in API format (see note below)
const wf = await client.workflows.fromFile("api_kling_v3_flf2v_api.json");
const asset = client.assets.fromFile("input.png");
wf.setInput("1", "image", asset); // LoadImage
const job = await client.run(wf);
await job.getOutputs("2")[0].toFile("output.png"); // SaveVideoThe SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API).
Comfy Cloud API access requires a plan with an API key.
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