The 'Grok: Video Extend' workflow is designed to seamlessly extend a short video by generating additional scenes based on a user-provided text prompt. This innovative process leverages the Grok model, which is specifically trained for video extension tasks. The workflow begins with the 'LoadVideo' node, where users upload their initial video clip. This is followed by the 'GrokVideoExtendNode', which takes the uploaded video and the text prompt to generate a new scene that smoothly transitions from the existing content. The final step involves the 'SaveVideo' node, which compiles the original and newly generated scenes into a single, cohesive video file. This workflow is particularly useful for content creators looking to expand their video narratives without the need for extensive filming or editing.
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 "Grok: Video Extend" (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_grok_video_extend_api.json");
const job = await client.run(wf);
await job.getOutputs("3")[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.
FAQ
