Juggernaut FLUX Series: Redefining Photorealism
At fal, we’re committed to pushing the boundaries of AI-powered creativity. Today, we’re excited to announce our partnership with RunDiffusion, to take photorealism to unprecedented heights. With the introduction of the Juggernaut FLUX series, RunDiffusion has set a new standard in AI image generation—and together, we’re making these advancements even more powerful and accessible.
Why This Partnership Matters
As AI-generated content becomes an integral part of industries ranging from entertainment to marketing, the demand for realism, depth, and creative control has never been greater. RunDiffusion’s Juggernaut FLUX family introduces four powerful models—Juggernaut Lightning, Juggernaut Base, Juggernaut LoRA, and Juggernaut Pro—each designed to enhance photorealistic rendering while maintaining the flexibility that creators need. By partnering with RunDiffusion, fal is ensuring that these groundbreaking advancements seamlessly integrate into our ecosystem, unlocking new creative possibilities for users worldwide.
Elevating Photorealism with AI
RunDiffusion’s non-destructive fine-tuning approach is a game-changer for AI image generation. Traditional models often sacrifice prior capabilities for new improvements, but the Juggernaut FLUX series retains the full range of FLUX’s creative flexibility while enhancing clarity, texture, and realism. This ensures that users can achieve:
- Unparalleled Detail – Sharper textures, lifelike skin tones, and natural lighting for truly immersive images.
- High-Resolution Mastery – Flawless outputs for large-scale projects, from 640×1536 aspect ratios to panoramic visuals.
- Real-Time Experimentation – Immediate access to an interactive playground for testing prompts and refining results.
Try out the models:
- Juggernaut Lightning: Fast, Affordable, High Quality
Distilled to deliver swift inference times without dramatically compromising on visual fidelity.
Ideal for real-time apps and cost-sensitive scenarios. - Juggernaut Base: Enhanced version of the widely used FLUX Dev, retaining its core strengths and merging in advanced image improvements. Perfect if you need better baseline quality but want to keep your existing FLUX-based workflows intact.
- Juggernaut LoRA: Elevate Your LoRAs & LyCORIS
Focuses on adding photorealistic depth while maintaining extensive compatibility with user-defined LoRA or LyCORIS elements.
Excellent choice for creators who prefer the FLUX style but need high-end results for specialized, fine-tuned tasks. - Juggernaut Pro: Flagship Quality
Represents the pinnacle of the Juggernaut FLUX ecosystem, achieving sharper details, refined skin textures, and overall superior realism.
Eliminates the "plastic" or "wax" look commonly associated with many AI outputs, especially in portraits.
Photorealism at its Finest
Samples below were obtained from the first generation of the prompt (not cherry-picked). Toggle the prompt down to see the parameters used.
Prompt #1: A Brazilian street dancer with caramel skin and curly hair wearing a cropped graphic tee and loose cargo pants mid-movement in an expressive hip-hop pose a vibrant graffiti-covered wall behind them.
Default Parameters:
width: 1024
height: 1024
numberResults: 1
outputType: URL
outputFormat: JPG
CFGScale: 3
steps: 33
Left: Flux Schnell (fal) | Right: Flux Pro 1.1 (fal)
Left: Juggernaut Lightning Flux (fal) | Right: Juggernaut Pro Flux (fal)
Prompt # 2: A close-up of a fashion designer’s hands stitching intricate embroidery onto a luxurious deep-red fabric, a desk scattered with sewing tools, fashion sketches pinned to a board in the background, golden light streaming through a loft-style studio window, intimate and artistic composition.
Default Parameters:
width: 1024
height: 1024
numberResults: 1
outputType: URL
outputFormat: JPG
CFGScale: 3
steps: 33
Left: Flux Schnell (fal) | Right: Flux Pro 1.1 (fal)
Left: Juggernaut Lightning Flux (fal) | Right: Juggernaut Pro Flux (fal)
Prompt # 3: A far shot of a sprawling architectural concept model displayed on a sleek glass table, miniature futuristic buildings with organic curves and green rooftops, soft lighting casting intricate shadows on the walls, a designer in the background adjusting a 3D-printed structure, innovative and forward-thinking aesthetic
Default Parameters:
width: 1024
height: 1024
numberResults: 1
outputType: URL
outputFormat: JPG
CFGScale: 3
steps: 33
Left: Flux Schnell (fal) | Right: Flux Pro 1.1 (fal)
Left: Juggernaut Lightning Flux (fal) | Right: Juggernaut Pro Flux (fal)
Prompt # 4: A mid-shot of a digital artist in a home studio, their hands covered in colorful paint as they blend digital and traditional techniques, an oversized canvas leaning against the wall displaying an abstract piece, a tablet on the desk showing a digital painting in progress, creative and expressive atmosphere.
Default Parameters:
width: 1024
height: 1024
numberResults: 1
outputType: URL
outputFormat: JPG
CFGScale: 3
steps: 33
Left: Flux Schnell (fal) | Right: Flux Pro 1.1 (fal)
Left: Juggernaut Lightning Flux (fal) | Right: Juggernaut Pro Flux (fal)
Prompt # 5: An extreme close-up of a graphic designer adjusting a vector logo on a high-resolution screen, reflection of bold typography visible in their glasses, a color palette and a tablet stylus resting beside a sketchbook filled with branding concepts, sharp and modern workspace aesthetic
Default Parameters:
width: 1024
height: 1024
numberResults: 1
outputType: URL
outputFormat: JPG
CFGScale: 3
steps: 33
Left: Flux Schnell (fal) | Right: Flux Pro 1.1 (fal)
Left: Juggernaut Lightning Flux (fal) | Right: Juggernaut Pro Flux (fal)
The Future of AI Imagery Starts Now
Our collaboration with RunDiffusion represents a shared vision: an AI-powered future where photorealistic image generation is not only possible but also easy, flexible, and scalable. With the Juggernaut FLUX series integrated into fal’s ecosystem, we’re giving creators the tools they need to produce breathtaking visuals like never before.
Experience the next era of AI-generated imagery. Try out the Juggernaut FLUX series today and see firsthand how fal and RunDiffusion are redefining photorealistic AI.