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.
GET https://comfy.org/workflows/download/471717404074.jsonFetching workflow JSON…
Run it from Python or TypeScript with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
# Install (beta)
pip install comfy-sdk # Python
npm i @comfyorg/sdk # TypeScript
# Run "Grok: Video Extend" (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
# This workflow, exported in API format (see note below)
wf = client.workflows.from_file("api_grok_video_extend_api.json")
job = client.run(wf)
for output in job.get_outputs("3"): # SaveVideo
output.to_file(output.name)The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API). API access requires a Comfy Cloud plan with an API key. SDK docs · Get an API key
FAQ
