<h1 id="flux-klein-high-res-powerhouse-(4k-and-8k-workflows)">⚡ Flux Klein High-Res Powerhouse (4K &amp; 8K Workflows)</h1>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.<h2 id="the-two-versions">📂 The Two Versions</h2><h3 id="1.-performance-hybrid-(speed)">1. 🚀 Performance Hybrid (Speed)</h3><ul><li>Filename: Flux_Klein_9b_with4b_upscaler.json</li><li>Best for: Faster generation times while still maintaining excellent resolution.</li><li>How it works:<ul><li>Stage 1: Generates the base composition using the Klein Base 9b model.</li><li>Stage 2: Upscales the image (2x or 4x) using the lightweight Klein 4b (4-step) model.</li></ul></li></ul><h3 id="2.-ultimate-fidelity-(quality)">2. 💎 Ultimate Fidelity (Quality)</h3><ul><li>Filename: Flux_Klein_9b_with_9b_Upscaler.json</li><li>Best for: Maximum detail, texture consistency, and highest quality output.</li><li>How it works:<ul><li>Stage 1: Generates the base composition using the Klein Base 9b model.</li><li>Stage 2: Upscales using the more robust Klein 9b (4-step) model for superior refinement during the upscale process.</li></ul></li></ul><hr /><h2 id="key-features">✨ Key Features</h2><ul><li>Extreme Resolution: Capable of generating standard images and upscaling them to 4K or 8K (45MP).</li><li>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.</li><li>Efficient: By utilizing the Klein quantized models, you get Flux capabilities with a much friendlier VRAM footprint.</li></ul><h2 id="requirements-and-setup">🛠️ Requirements &amp; Setup</h2>To use these workflows, you will need the following models in your ComfyUI models folders:<ol><li>Checkpoints (UNET):<ul><li>flux-2-klein-base-9b.safetensors</li><li>flux-2-klein-4b.safetensors (for the speed version)</li></ul></li><li>Upscale Model:<ul><li>4xNomosUniDAT_otf.pth (or your preferred 4x upscaler)</li></ul></li></ol><ol><li>Nodes: Ensure you have the necessary custom nodes installed (specifically ComfyUI-Florence2, ComfyUI_Steudio (for Divide &amp; Conquer), and ComfyUI-GGUF if using GGUF versions).</li></ol><h2></h2><hr />

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