Batch Upscale to 4K in ComfyUI (Only 4GB GPU!) | Python Automation Tutorial

📝 YouTube Description

Turn your low-spec PC into a 4K image-upscaling powerhouse!
In this tutorial, I show how I upscale 200–300 images in batch to 4K resolution using ComfyUI + Python automation — even on a system with 4GB VRAM and 16GB RAM.

This workflow avoids memory errors by processing one image at a time, making it perfect for budget hardware.

🚀 What you’ll learn
ComfyUI upscale setup (simple clean workflow)
Using Remacri upscaler model from Civitai
Exporting workflow as an API JSON
Writing & running Python script to batch-process images
Avoiding VRAM/RAM crashes on low-hardware
Folder setup & path configuration
Running the automation script in Visual Studio

💡 Important Note
Visual Studio is not the only way to run this.
You can run the Python script from VS Code, Terminal, Jupyter, PyCharm, etc.
Visual Studio is just what I used in the video.

📎 Downloads & Files Used
✅ ComfyUI Basic Workflow (API Export) https://drive.google.com/file/d/12SsasjosM1DWikqfSVOyhzpcHiWF1HIK/view?usp=sharing
✅ Remacri Upscaler Model (Civitai) https://civitai.com/models/147759/remacri
✅ Python Batch Upscaling Script https://drive.google.com/file/d/12SsasjosM1DWikqfSVOyhzpcHiWF1HIK/view?usp=sharing

(All files are attached in video description / drive link)
💻 My System Specs
✅ 4GB VRAM (RTX 3050)
✅ 16GB RAM
✅ Windows 11

And still — 4K batch upscale works smoothly ✔️

❤️ If this video helped you:
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I’ll be posting more ComfyUI, AI automation & workflow optimization videos.

⏳ Chapters
00:00 Intro
00:20 Goal & Hardware Specs
01:00 Problem: Memory Crashes
01:30 My Solution
02:10 ComfyUI Upscale Workflow Setup
03:00 Install Upscaler from Civitai
04:20 Export ComfyUI Workflow as API
05:30 Python Automation Setup
07:00 Visual Studio / Python Environment
Run Batch Upscaler
Results (4K Outputs)
Summary + Tips

🔥 YouTube Hashtags
#ComfyUI #AIUpscaling #StableDiffusion #Civitai #PythonAutomation #4KUpscale
#AIWorkflow #LowSpecPC #AIEdits #BatchUpscale #Remacri #AIImageEnhancement

Видео Batch Upscale to 4K in ComfyUI (Only 4GB GPU!) | Python Automation Tutorial канала Subbu Gyan