Professional-grade image generation that runs entirely on your own GPU. ComfyUI + FLUX.1 Dev gives you Midjourney-quality output with full creative control and zero data leaving your machine.
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What You Need
- A GPU with 12GB+ VRAM (24GB recommended)
- Python 3.10+ or the ComfyUI desktop app
- About 20 minutes
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Setup
Option A: Desktop App (Easiest) Download from comfy.org, install, and use the built-in model manager to download FLUX.1 Dev.
Option B: Manual Install
Open http://localhost:8188.
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Basic FLUX Workflow
- Add a **Checkpoint ** node - load flux1-dev.safetensors
- Add CLIP Text Encoder - enter your prompt
- Add KSampler - connect model, CLIP, and empty latent
- Add VAE Decode - decode to image
- Add Save Image - save result
- Click Queue Prompt
Prompt example: "a photorealistic cat sitting on a vintage leather chair, warm lighting, depth of field"
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Advanced Features
LoRA - add a LoRA node for style control #
ControlNet - pose/edge guidance with extra nodes #
Image-to-Image - feed an existing image through VAE Encode #
API mode - integrate with n8n or custom apps #
Batch generation - queue multiple prompts at once
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Cost vs Cloud
| Local | Midjourney | | Monthly | $0 | $10-60 | | Per image | $0 | $0.04-0.12 | | Privacy | Stays on your GPU | Sent to cloud | | Control | Full node-level | Limited |
Full guide with troubleshooting and hardware tips: https://everylocalai.com/stack/comfyui-flux-local-image