Verified: 10 days ago
Other
The FLUX.1 [dev] Model is licensed by Black Forest Labs. Inc. under the FLUX.1 [dev] Non-Commercial License. Copyright Black Forest Labs. Inc.
IN NO EVENT SHALL BLACK FOREST LABS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH USE OF THIS MODEL.
⚡ Flux Klein High-Res Powerhouse (4K & 8K Workflows)
Unlock the full potential of Flux Klein. These workflows allow you to generate incredible high-resolution images, reaching 4K and even 45MP (8K) resolutions, utilizing the efficiency of Klein models.
I have included two versions of this workflow to suit your specific hardware and quality needs.
📂 The Two Versions
1. 🚀 Performance Hybrid (Speed)
Filename: Flux_Klein_9b_with4b_upscaler.json
Best for: Faster generation times while still maintaining excellent resolution.
How it works:
Stage 1: Generates the base composition using the Klein Base 9b model.
Stage 2: Upscales the image (2x or 4x) using the lightweight Klein 4b (4-step) model.
2. 💎 Ultimate Fidelity (Quality)
Filename: Flux_Klein_9b_with_9b_Upscaler.json
Best for: Maximum detail, texture consistency, and highest quality output.
How it works:
Stage 1: Generates the base composition using the Klein Base 9b model.
Stage 2: Upscales using the more robust Klein 9b (4-step) model for superior refinement during the upscale process.
✨ Key Features
Extreme Resolution: Capable of generating standard images and upscaling them to 4K or 8K (45MP).
Smart Tiled Upscaling: Uses a "Divide and Conquer" strategy combined with Florence2. The workflow automatically captions the image before upscaling to guide the diffusion model, ensuring the upscale respects the context of the image.
Efficient: By utilizing the Klein quantized models, you get Flux capabilities with a much friendlier VRAM footprint.
🛠️ Requirements & Setup
To use these workflows, you will need the following models in your ComfyUI models folders:
Checkpoints (UNET):
flux-2-klein-base-9b.safetensors
flux-2-klein-4b.safetensors (for the speed version)
Upscale Model:
4xNomosUniDAT_otf.pth (or your preferred 4x upscaler)
Nodes: Ensure you have the necessary custom nodes installed (specifically ComfyUI-Florence2, ComfyUI_Steudio (for Divide & Conquer), and ComfyUI-GGUF if using GGUF versions).