MimicPC has just updated the latest version of Stable Diffusion-WebUI-Forge, now fully integrated with the Flux.1 model. This update brings significant enhancements, enabling users to achieve faster, more precise image generation with advanced AI capabilities tailored to various hardware configurations.
Understanding Flux Checkpoints
In Stable Diffusion-WebUI-Forge, you now have access to two main Flux checkpoints:
- flux1-dev-bnb-nf4-v2.safetensors: This is the recommended checkpoint for most users. It's optimized for speed and efficiency, particularly when working on devices with varying VRAM capacities.
- flux1-dev-fp8.safetensors: An alternative checkpoint for older GPUs that may not support NF4, offering a robust yet slightly less optimized experience.
Machine Recommendations with MimicPC Models
When using Flux.1, it's essential to match your model selection and configuration with the hardware you have. MimicPC offers four different machine models tailored to various user needs:
- Medium (T4 16GB VRAM | 16GB RAM):
- Recommendation: For those using the Medium model, the flux1-dev-bnb-nf4-v2.safetensors is ideal. With 16GB of VRAM, you can take advantage of the NF4's speed and efficiency, although you may need to adjust GPU weights and swap settings for optimal performance.
- Large (A10G 24GB VRAM | 16GB RAM):
- Recommendation: This configuration offers more VRAM, allowing you to handle larger models with ease. The flux1-dev-bnb-nf4-v2.safetensors will work well here, providing a balance between speed and memory usage. You can push GPU weights higher, taking full advantage of the 24GB VRAM.
- Large-Pro (A10G 24GB VRAM | 32GB RAM):
- Recommendation: Similar to the Large model but with additional RAM, the Large-Pro is ideal for more complex projects. Use the NF4 checkpoint and consider setting higher GPU weights and enabling the Async swap method for faster processing times without compromising stability.
- Ultra (L40S 48GB VRAM | 32GB RAM):
- Recommendation: For power users, the Ultra model with 48GB of VRAM is a beast. You can maximize the potential of flux1-dev-bnb-nf4-v2.safetensors with aggressive settings, pushing GPU weights to the limit. The large VRAM allows for handling multiple layers and complex scenes effortlessly.
Optimizing Your Setup
Regardless of the MimicPC model you're using, it's important to fine-tune your settings in Stable Diffusion-WebUI-Forge:
- Swap Location:
- CPU Swap: This option uses CPU memory for overflow when VRAM is insufficient. It's reliable but slower.
- Shared Memory Swap: If you're using a MimicPC model with substantial RAM, consider using shared memory. It can be up to 15% faster but may cause instability on some systems.
- GPU Weights Slider: Adjust this based on your project needs. Larger GPU Weights mean faster processing but require more VRAM. For most MimicPC models, start with a mid-range setting and adjust as needed.
- Swap Method:
- Queue: A safe and reliable method that processes layers sequentially.
- Async: Ideal for faster processing on higher-end MimicPC models like Large-Pro and Ultra, though it requires careful management of GPU memory.
Distilled CFG Guidance
Flux-dev is a distilled model. It is recommended to set CFG=1 and then do not use negative prompts. Using “Distilled CFG Guidance” instead. The default value is 3.5.
Note that if CFG=1, the UI of negative prompt will be greyed out.
Ender the prompt:
Astronaut in a jungle, cold color palette, muted colors, very detailed, sharp focus
Steps: 20, Sampler: Euler, Schedule type: Simple, CFG scale: 1, Distilled CFG Scale: 3.5, Seed: 12345, Size: 896x1152, Model: flux1-dev-bnb-nf4-v2
Let's see what happens when we switch to flux1/flux1-schnell-fp8.safetensors
Final Thoughts
With the new MimicPC update, Flux.1 is now more accessible and powerful within Stable Diffusion-WebUI-Forge. Whether you're working on a Medium model or pushing the limits with the Ultra, aligning your hardware with the right settings will unlock the full potential of Flux.1, enabling you to create stunning, high-quality images with unprecedented speed.
Take advantage of this update and optimize your creative workflows today with MimicPC and Flux.1. You can check more details on Github.