ComfyUI > Nodes > ComfyUI > Grok Video Extend

ComfyUI Node: Grok Video Extend

Class Name

GrokVideoExtendNode

Category
api node/video/Grok
Author
ComfyAnonymous (Account age: 763days)
Extension
ComfyUI
Latest Updated
2026-05-13
Github Stars
112.77K

How to Install ComfyUI

Install this extension via the ComfyUI Manager by searching for ComfyUI
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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Grok Video Extend Description

Seamlessly extend videos with AI-generated continuations matching text prompts for smooth content expansion.

Grok Video Extend:

The GrokVideoExtendNode is designed to seamlessly extend an existing video by generating a continuation that aligns with a provided text prompt. This node is particularly beneficial for creators looking to expand their video content without noticeable transitions, ensuring a smooth and coherent flow. By leveraging advanced AI techniques, the node interprets the text prompt to generate additional video frames that match the style and context of the original video. This capability allows for creative storytelling and content enhancement, making it a valuable tool for AI artists and video creators who wish to explore new dimensions in their video projects.

Grok Video Extend Input Parameters:

model

The model parameter allows you to select the AI model used for video extension. Options include "grok-imagine-video" and "grok-imagine-video-beta". Choosing the appropriate model can impact the style and quality of the video extension, with each model offering different capabilities and characteristics.

prompt

The prompt parameter is a multiline text input where you describe the desired continuation of the video. This text prompt guides the AI in generating new video content that aligns with your creative vision. The clarity and detail of the prompt can significantly influence the outcome, as it serves as the primary directive for the video extension process.

video

The video parameter is where you input the existing video that you wish to extend. The maximum supported duration is 8.7 seconds, and the file size should not exceed 50MB. This input serves as the foundation for the extension, with the AI generating new frames that seamlessly integrate with the original content.

seed

The seed parameter is an integer input that helps determine if the node should re-run. While the actual results are nondeterministic, setting a seed can provide some consistency in the extension process. The default value is 0, with a range from 0 to 2147483647. Adjusting the seed can be useful for experimenting with different outcomes while maintaining a degree of control over the process.

Grok Video Extend Output Parameters:

video

The output video parameter provides the extended video, which includes the original content seamlessly integrated with the newly generated frames. This output is the culmination of the AI's interpretation of the text prompt and the original video, offering a coherent and extended video narrative that aligns with the user's creative intent.

Grok Video Extend Usage Tips:

  • Experiment with different text prompts to explore various creative directions for your video extension. The more detailed and specific your prompt, the more likely the AI will generate content that aligns with your vision.
  • Utilize the seed parameter to test different variations of the video extension. This can help you find the most aesthetically pleasing or contextually appropriate continuation for your project.

Grok Video Extend Common Errors and Solutions:

"Video file size exceeds 50MB"

  • Explanation: The input video file is larger than the maximum supported size of 50MB.
  • Solution: Compress the video file to reduce its size or select a shorter video segment that meets the size requirement.

"Video duration exceeds 8.7 seconds"

  • Explanation: The input video exceeds the maximum supported duration of 8.7 seconds.
  • Solution: Trim the video to a shorter length that fits within the duration limit before inputting it into the node.

"Invalid model selection"

  • Explanation: The selected model is not recognized or supported by the node.
  • Solution: Ensure that you select either "grok-imagine-video" or "grok-imagine-video-beta" as the model option.

Grok Video Extend Related Nodes

Go back to the extension to check out more related nodes.
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Grok Video Extend