Recommended path
ComfyUI Desktop
Use this for the normal Windows app install. It opens like a regular app and includes ComfyUI Manager by default.
Download ComfyUI DesktopSetup guide / local workstation
Get ComfyUI ready.
ALTERA2ION launch packages are built for Windows ComfyUI on a local workstation. We recommend an NVIDIA GPU for the cleanest setup and the most predictable results.
Primary workstation path
Built for local GPU control.
Use a Windows machine with an NVIDIA GPU where possible. The package installer handles ALTERA2ION files after ComfyUI and the base model files are ready.
GPU
NVIDIA recommended
VRAM
8GB minimum
RAM
32GB minimum
OS
Windows 10/11
Windows local workstation
NVIDIA recommended
Three model downloads
Package installer included
01 / Install ComfyUI
Install ComfyUI first.
If you are installing ComfyUI for the first time, choose Desktop. Portable is for users who prefer an unzip-and-run folder instead of installing a Windows app.
Folder-based install
Portable NVIDIA
Use this if you prefer downloading a folder, unzipping it, and running ComfyUI from inside that folder. For NVIDIA Windows machines.
Not sure? Choose ComfyUI Desktop.
It is the simplest route and includes ComfyUI Manager.
02 / Download models
Download three model files.
Download each file, keep the file name unchanged, then place it in the exact ComfyUI folder shown on the right.
01
Flux 2 Klein 9B
Main diffusion model. Download this first.
Download Flux 2 Klein 9BPlace this file in
ComfyUI\models\diffusion_models\flux-2-klein-9b.safetensors
02
Qwen text encoder
Text encoder file used by the workflow.
Download Qwen 8B FP8 mixedPlace this file in
ComfyUI\models\text_encoders\qwen_3_8b_fp8mixed.safetensors
03
Flux 2 VAE
VAE file required by the calibrated graph.
Download Flux 2 VAEPlace this file in
ComfyUI\models\vae\flux2-vae.safetensors
Qwen note
Use the direct Qwen button above. Do not download shard, chunk, or pointer files from the repository page, and do not manually merge files.
Keep the tested stack
Do not rename or replace these model files. 16GB+ VRAM is recommended for heavier scenes, while 8GB remains the launch minimum.
03 / Install package
Run the package installer.
After ComfyUI and the three model files are ready, use the installer inside your purchased ALTERA2ION package.
01
Open 01_INSTALLER
Inside your downloaded package, open the folder named `01_INSTALLER`.
02
Run package installer
Double-click `run_package_installer.bat`. It auto-detects ComfyUI and asks for the path only if needed.
03
Open the workflow
In ComfyUI, load `01_WORKFLOW.json` from the package workflow folder. Sign in when the ALTERA2ION node asks for approval.
Task-specific workflow package
Curated by ALTERA2ION for the task.
Each package combines a calibrated workflow, encrypted fine-tuned LoRA, installer, guide, and example structure for a specific architectural use case.