ComfyUI-WeightedRandomChoice

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随机选择权重控制流程分支多样性增强

根据给定的概率（chance）在 input_a 与 input_b 之间按权重随机选择一个输出，用于流程分流与生成多样性控制。

💡 按概率在工作流中切换不同数据流以增加多样性。

🍴 2 Forks💻 Python🔄 2025-04-22

🔗 GitHub 原文

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https://pan.quark.cn/s/a9fb3a59e10c

📄 README

ComfyUI-WeightedRandomChoice

A node for ComfyUI that picks from input_a and input_b based on the given chance.

I’ll be honest, I was a little surprised I couldn’t find a node like this on the Comfy Registry. It’s simple yet very useful for things like randomizing parts of a prompt.

Installation

Simply drag the image above into ComfyUI and use ComfyUI Manager » Install Missing Custom Nodes.

Inputs

input_a: Supports any datatype.

input_b: Supports any datatype.

chance: A float between 0 and 1 that indicates the probability of selecting input_a. For example, set this to 0.95 for a 95% chance to return input_a.

seed: Useful for locking in a certain result.

Output

As a quality of life feature, you can provide only input_a or input_b, and if the unconnected input is chosen, the node will return a default value based on the datatype of the other input.

For example, let’s say you set input_a to 50 and leave input_b blank. If input_b is chosen, the node will return the default integer value of 0. For strings, it would return a blank string, and for floats, 0.0.