Prompt PostProcessor

By acorderobView on GitHub →

Stable Diffusion WebUI & ComfyUI extension to post-process the prompt, including sending content from the prompt to the negative prompt and wildcards.

How much VRAM does Prompt PostProcessor require?

Direct Answer: The ComfyUI node Prompt PostProcessor requires a minimum base VRAM of 256MB and is optimized for GPUs with at least 4GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.

High (2-4GB)
Base VRAM:
256MB (0.3GB)
Recommended GPU:
4GB+ VRAM
Low VRAM Mode:
✓ Supported
Estimation Confidence:
HIGH

Interactive VRAM Compatibility Estimator

Estimated Total VRAM: 3.00 GBTarget: 8 GB
✅ Comfortable Fit

Your GPU has plenty of headroom. You can run this node safely with your active configurations!

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Deploy on Cloud GPUs

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What Python packages are required for Prompt PostProcessor?

Direct Answer: Running Prompt PostProcessor requires installing the following Python package dependencies: lark==1.*, numpy==2.*, pydantic==2.*, ruamel.yaml==0.*. Ensure your ComfyUI environment has these packages active before launching.

requirements.txt
lark==1.*
numpy==2.*
pydantic==2.*
ruamel.yaml==0.*

Interactive Setup & Dependency Resolver

Operating System:
Environment Type:
Run this terminal command in your ComfyUI root folder:
# Loading command...

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AITocha Vision
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AI_Text_Comfyui
by Zch6111256MB VRAM
AK XZ Axis (XY for any KSampler)
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ArtyClaw Comfy Nodes
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Frequently Asked Questions

How much VRAM does Prompt PostProcessor require?

Prompt PostProcessor requires a minimum of 256MB (0.3GB) of VRAM for base operation. For optimal performance, a GPU with at least 4GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.

Can I run Prompt PostProcessor on an RTX 3060, RTX 4070, or RTX 4090?

✅ RTX 3060 (12GB): Yes, fully compatible with 10.6GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 10.6GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 14.2GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 21.4GB headroom

What Python packages are required for Prompt PostProcessor?

To run Prompt PostProcessor, you need to install: lark==1.*, numpy==2.*, pydantic==2.*, ruamel.yaml==0.*. You can install these using pip or add them to your requirements.txt file.

How can I reduce VRAM usage when running Prompt PostProcessor?

Prompt PostProcessor supports low VRAM mode. To reduce memory usage: (1) Enable --lowvram or --medvram flags in ComfyUI, (2) Reduce batch size to 1, (3) Use fp16 or fp8 precision if supported, (4) Close other GPU applications.

How do I install Prompt PostProcessor in ComfyUI?

To install Prompt PostProcessor: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/acorderob/sd-webui-prompt-postprocessor, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.