Flux 2 Klein: The FASTEST Model for Low VRAM PCs (ComfyUI Workflow)

Video tutorial: https://youtu.be/yNf-KmC4Bis

In this video, I introduce Flux 2 Klein – the latest model from Black Forest Labs designed specifically for speed and efficiency. I'll show you how to generate hyper-realistic images and edit them using a single workflow on a low VRAM setup.

? Key Features Covered:

- Insane Speed: Render 2K images in seconds.

- Low VRAM Friendly: Optimized for consumer GPUs.

- All-in-One: Generate and Edit in one model.

⚙️ Build Workflow

• Step 1 - Install the custom node

  • Install KJNodes node: https://github.com/kijai/ComfyUI-KJNodes

  • Install ComfyUILiterals node: https://github.com/M1kep/ComfyLiterals

• Step 2 - Download the model and place it in the correct folder

  • https://huggingface.co/black-forest-labs/FLUX.2-klein-4B/blob/main/flux-2-klein-4b.safetensors

    • Place the file in: "models/unet"

  • https://huggingface.co/unsloth/FLUX.2-klein-4B-GGUF/tree/main

    • Place the file in "models/unet"

  • https://huggingface.co/Comfy-Org/z_image_turbo/blob/main/split_files/text_encoders/qwen_3_4b.safetensors

    • Place the file in: "models/text_encoders

  • https://huggingface.co/Comfy-Org/flux2-dev/blob/main/split_files/vae/flux2-vae.safetensors

    • Place the file in: "models/vae"

  Full workflow in the attachments.