Hi, I鈥檓 Jakob Stewart, a digital artist specializing in NSFW AI tools.

Today, I will teach you how to install and run Flux AI, a powerful new text-to-image model, especially if you鈥檙e working with limited VRAM.

I鈥檒l break down the steps for installing Flux AI聽on platforms like ComfyUI聽and ForgeUI聽so you can easily generate amazing images, even on lower-end GPUs.

Click the links below to jump directly to the section.

  • What is Flux AI?
  • Installing Flux AI with Stability Matrix
  • Tips for Optimizing VRAM Usage

What is Flux AI?

Flux AI is a cutting-edge text-to-image diffusion model聽developed by Black Forest Labs.

It outperforms major models like Stable Diffusion 3 Ultra聽and MidjourneyV6.0.

With 12 billion聽parameters, it鈥檚 powerful but can still run on lower-end machines, making it accessible to more users.

Flux comes in several versions:

  • Flux.1 Dev: Great for high-end GPUs with over 12GB VRAM.
  • Flux.1 Schnell: Optimized for lower-end GPUs, generating images in 1-4聽steps.
  • Flux NF4: A 4-bit quantized version for low VRAM machines.

Installing Flux AI with Stability Matrix

Installing Flux AI聽is made simple by using Stability Matrix, a multi-platform package manager designed for Stable Diffusion聽web UI packages.

It provides a graphical user interface聽that makes it easier to install models without needing a command-line experience.

Check out my detailed guide on how to install Stability Matrix聽for step-by-step instructions to get started.

Step 1: Download Stability Matrix

Head over to the Stability Matrix download page聽and choose the installer that matches your operating system (Windows, Linux, or Mac).

Once downloaded, unzip the file and install Stability Matrix.

You can choose the portable version聽if you prefer to move the program folder to another drive while keeping all your data intact.

Step 2: Download the Flux AI Model

After installing Stability Matrix, you鈥檒l need to manually add the Flux AI model.

Use the following links to download the appropriate files:

鈿狅笍 Once downloaded, place the Flux model file聽in the data/stable-diffusion聽folder and the VAE file聽in the data/vae聽folder within Stability Matrix.

Step 3: Start Stability Matrix and Install Web UI

Open Stability Matrix. When it launches for the first time, you鈥檒l be prompted to install packages.

Select the Stable Diffusion Web UI Forge聽package.

If the pop-up doesn鈥檛 appear, you can always go to the Packages聽section and click Add Package聽to install the web UI with just one click.

Step 4: Select Flux AI in Web UI

Once the Stable Diffusion Web UI聽is installed, launch it and:

  • Check the Flux AI box聽at the top of the interface.
  • Select the Flux model聽and the corresponding VAE聽file from the list. (Only if using Flux.1 Dev NF4)

No further configuration is needed at this point, making it super simple to start generating images.

Step 5: Generate Your First Image

Now that Flux AI聽is set up, you can enter your text prompt in the designated area. If you鈥檙e working with a low-VRAM GPU, make sure to reduce the image dimensions (e.g., 512 x 512) and keep the sampling steps low (1-4 for Schnell聽or 20-50 for Dev).

Click Generate聽and wait for the image to render.

Depending on your GPU, it might take a few minutes, but Stability Matrix聽will handle all the heavy lifting for you!

Tips for Optimizing VRAM Usage:

  • Reduce Image Size: Smaller images, such as 512 x 512, consume less VRAM.
  • Lower Sampling Steps: Using fewer steps (1-4) can speed up the process and conserve VRAM.
  • Use the FP8 Version: The FP8 model聽is another way to maintain quality while saving resources.

I鈥檝e tried these steps myself, and trust me, you鈥檒l be amazed by what Flux AI聽can do. Give it a try聽and start creating today!

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