ComfyUI > Nodes > seedance2-comfyui > 🌱 Seedance 2.0 Extend

ComfyUI Node: 🌱 Seedance 2.0 Extend

Class Name

Seedance2Extend

Category
🌱 Seedance 2.0
Author
Anil-matcha (Account age: 4733days)
Extension
seedance2-comfyui
Latest Updated
2026-04-15
Github Stars
0.17K

How to Install seedance2-comfyui

Install this extension via the ComfyUI Manager by searching for seedance2-comfyui
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter seedance2-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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🌱 Seedance 2.0 Extend Description

Extends Seedance 2.0 videos by adding duration, maintaining style, and incorporating new prompts.

🌱 Seedance 2.0 Extend:

Seedance2Extend is a powerful node designed to enhance and extend the capabilities of your Seedance 2.0 video creations. Its primary function is to allow you to seamlessly add additional duration to a previously generated video, providing a smooth continuation of the visual narrative. This node is particularly beneficial for artists looking to expand their video projects without starting from scratch, as it leverages the existing video content and optionally incorporates new creative prompts to guide the extension. By using Seedance2Extend, you can maintain the thematic and stylistic consistency of your original video while exploring new creative directions, making it an essential tool for iterative video development and storytelling.

🌱 Seedance 2.0 Extend Input Parameters:

request_id

The request_id is a crucial input parameter that identifies the specific video generation request you wish to extend. It must be obtained from a completed Seedance 2.0 video generation. This parameter ensures that the node knows which video to continue from, making it essential for the node's execution. The request_id is a string and does not have a default value, meaning it must be provided for the node to function.

quality

The quality parameter determines the visual fidelity of the extended video. It offers two options: "basic" and "high," with "basic" being the default setting. Choosing "high" will result in a more visually detailed video, which may require more processing time. This parameter allows you to balance between video quality and processing efficiency based on your project's needs.

duration

The duration parameter specifies the length of time to be added to the original video. It offers three options: 5, 10, or 15 seconds, with 5 seconds as the default. This parameter allows you to control how much additional content is appended to your video, enabling you to tailor the extension to fit your creative vision.

api_key

The api_key is an optional parameter that provides authentication for accessing the Seedance 2.0 API. It is a string and does not have a default value. If not provided, the node will attempt to use a previously loaded API key. This parameter is essential for ensuring secure and authorized access to the video generation services.

prompt

The prompt is an optional parameter that allows you to guide the creative direction of the video extension. It is a string that can include multiline text, providing additional context or themes for the continuation. This parameter is useful for artists who wish to introduce new elements or maintain a specific narrative in the extended video.

🌱 Seedance 2.0 Extend Output Parameters:

video_url

The video_url is a string output that provides the web address where the extended video can be accessed. This URL is essential for viewing and sharing the completed video, making it a key output of the node.

first_frame

The first_frame is an image output that represents the initial frame of the extended video. This output is useful for previewing the video's starting point and ensuring that the extension aligns with your creative expectations.

new_request_id

The new_request_id is a string output that serves as a unique identifier for the extended video generation request. This ID is important for tracking and managing your video projects, especially if further modifications or extensions are planned.

🌱 Seedance 2.0 Extend Usage Tips:

  • Ensure that you have a valid request_id from a completed Seedance 2.0 video generation to use this node effectively.
  • Consider using the prompt parameter to introduce new creative elements or maintain thematic consistency in the extended video.
  • Choose the quality setting based on your project's needs, balancing between visual fidelity and processing time.

🌱 Seedance 2.0 Extend Common Errors and Solutions:

"request_id required."

  • Explanation: This error occurs when the request_id parameter is not provided or is empty.
  • Solution: Ensure that you input a valid request_id from a completed Seedance 2.0 video generation before running the node.

"At least one image required."

  • Explanation: This error is related to the image upload process, indicating that no images were provided when required.
  • Solution: Verify that you have uploaded at least one image if the node's functionality involves image processing. This error is more relevant to image-to-video nodes but can be a useful reminder for ensuring all necessary inputs are provided.

🌱 Seedance 2.0 Extend Related Nodes

Go back to the extension to check out more related nodes.
seedance2-comfyui
RunComfy
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RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

🌱 Seedance 2.0 Extend