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ComfyUI > Nodes > ComfyUI_MiniMax_H3_Extender > MiniMax H3 Extender

ComfyUI Node: MiniMax H3 Extender

Class Name

MiniMaxH3Extender

Category
MiniMax H3
Author
tritant (Account age: 3927days)
Extension
ComfyUI_MiniMax_H3_Extender
Latest Updated
2026-08-19
Github Stars
0.12K

How to Install ComfyUI_MiniMax_H3_Extender

Install this extension via the ComfyUI Manager by searching for ComfyUI_MiniMax_H3_Extender
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI_MiniMax_H3_Extender 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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MiniMax H3 Extender Description

Streamline video sequence generation with MiniMaxH3Extender, consolidating multiple nodes into one efficient sequence node for enhanced workflow integration and high-quality outputs.

MiniMax H3 Extender:

The MiniMaxH3Extender is a sophisticated node designed to streamline and enhance the process of generating video sequences using the MiniMax H3 model. It replaces the traditional graph setup involving multiple nodes like Ref2VA, Motion Context, Sampler, and Disk Join, by consolidating these functions into a single, efficient sequence node. This node is particularly beneficial for users who want to maintain a validated disk cache while keeping the final decode and preview processes separate. By accepting an already-patched H3 model, the MiniMaxH3Extender allows for external model patches such as Sigma-shift, LoRA, and Spectrum to be applied seamlessly, ensuring that the node integrates smoothly into existing workflows. Its primary goal is to simplify the video generation process while maintaining high-quality outputs and flexibility in model composition.

MiniMax H3 Extender Input Parameters:

model

The model parameter refers to the pre-trained H3 model that the node will use to generate video sequences. It is crucial for determining the quality and style of the output, as different models may have varying capabilities and characteristics. There are no specific minimum or maximum values for this parameter, but it should be a compatible H3 model that has been patched as needed.

conditioning

The conditioning parameter involves the input conditions or prompts that guide the video generation process. This can include textual prompts, reference images, or other forms of input that influence the final output. The effectiveness of the conditioning directly impacts the relevance and quality of the generated video.

latent

The latent parameter represents the latent space input that the model uses to generate the video. This is a crucial component as it contains the encoded information that the model decodes into a video sequence. The latent input should be compatible with the model and conditioning used.

seed

The seed parameter is an integer value that initializes the random number generator used in the sampling process. It ensures reproducibility of results, meaning that using the same seed with the same inputs will yield the same output. There are no strict minimum or maximum values, but it should be a valid integer.

sampler_name

The sampler_name parameter specifies the name of the sampling algorithm to be used during the video generation process. Different samplers can affect the style and quality of the output, and users can choose based on their specific needs or preferences.

scheduler

The scheduler parameter determines the scheduling strategy for the sampling process. It influences how the model iterates over the latent space to generate the video, affecting both the speed and quality of the output.

steps

The steps parameter is an integer that defines the number of steps the model takes during the sampling process. More steps generally lead to higher quality outputs but require more computational resources. There is no fixed minimum or maximum, but it should be chosen based on the desired balance between quality and performance.

denoise

The denoise parameter is a floating-point value that controls the amount of noise reduction applied during the sampling process. A higher denoise value can lead to smoother outputs but may also reduce detail. The choice of denoise value depends on the specific requirements of the video being generated.

MiniMax H3 Extender Output Parameters:

samples

The samples output parameter contains the generated video sequences as a result of the sampling process. These samples are the primary output of the node and represent the visual content created based on the input parameters and model.

statuses

The statuses output parameter provides information about the status of each generated clip, including any errors or warnings encountered during the process. This is useful for debugging and ensuring that the generation process completed successfully.

previous_handle

The previous_handle output parameter is a reference to the previous cache handle used in the process. It is important for maintaining continuity between different runs and ensuring that cached data is utilized effectively.

previous_proxy

The previous_proxy output parameter serves as a proxy reference for the previous cache, allowing for efficient data management and retrieval during the video generation process.

MiniMax H3 Extender Usage Tips:

  • Ensure that your H3 model is properly patched and compatible with the MiniMaxH3Extender to avoid compatibility issues.
  • Experiment with different conditioning inputs and sampler settings to achieve the desired style and quality in your video outputs.
  • Use the seed parameter to reproduce specific results, which is particularly useful for iterative design processes.
  • Adjust the steps and denoise parameters to find the right balance between output quality and computational efficiency.

MiniMax H3 Extender Common Errors and Solutions:

"Model not compatible"

  • Explanation: This error occurs when the provided model is not compatible with the MiniMaxH3Extender, possibly due to missing patches or incorrect model type.
  • Solution: Ensure that the model is correctly patched and compatible with the node. Verify that all necessary external patches are applied before using the model with the extender.

"Invalid latent input"

  • Explanation: This error indicates that the latent input provided is not suitable for the model or the current configuration.
  • Solution: Check that the latent input is correctly formatted and compatible with the model and conditioning parameters. Ensure that it matches the expected input dimensions and data type.

"Sampling process failed"

  • Explanation: This error suggests that the sampling process encountered an issue, possibly due to incorrect parameter settings or insufficient computational resources.
  • Solution: Review the sampler, scheduler, and steps parameters to ensure they are set correctly. Consider reducing the number of steps or adjusting other parameters to fit within available resources.

MiniMax H3 Extender Related Nodes

Go back to the extension to check out more related nodes.
ComfyUI_MiniMax_H3_Extender
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