Flux Pro: Everything You Need to Know
Flux Pro represents the pinnacle of the FLUX family. Combining the FLUX 1.1 Pro engine (which achieved the highest Elo score on the Artificial Analysis leaderboard) with Ultra resolution support, it generates images natively at up to 4 megapixels — without any post-processing upscaling. The standout feature is Raw Mode, which produces images with the natural imperfections and subtle lighting of candid photography, directly addressing the common complaint that AI images look too polished. At ~10 seconds per 4MP image, it's remarkably fast for its resolution class.
See examples and try Flux Pro on PicPresto →
At a Glance
| Category | Image Generation |
| Creator | Black Forest Labs |
| Released | November 6, 2024 |
| Parameters | 12 billion |
| Architecture | Rectified Flow Transformer |
| Resolution | Up to 4 megapixels (2048×2048 or equivalent aspect ratios) |
| License | Proprietary (API-only access) |
| PicPresto Tier | Pro |
| Credit Cost | 10 credits per image |
| Approx. Cost | $0.05 per image |
About Black Forest Labs
Founded by Robin Rombach, Andreas Blattmann, and Patrick Esser — the original creators of Stable Diffusion at LMU Munich. The team left Stability AI to build FLUX, raising $31M from Andreessen Horowitz.
The same researchers who created Stable Diffusion went on to build FLUX as its spiritual successor.
How It Works
Built on the FLUX architecture with proprietary extensions enabling native high-resolution generation up to 4 megapixels. Includes a unique 'Raw Mode' that generates images with natural imperfections mimicking candid photography.
Inference steps: Proprietary (optimized internally)
Key Innovations
- Native 4-megapixel generation without post-processing upscaling
- Raw Mode creates authentically natural images with subtle imperfections that mimic candid photography
- FLUX 1.1 Pro core achieved the highest Elo score on Artificial Analysis image arena
- 6x faster than its predecessor (FLUX 1.0 Pro) while simultaneously improving quality
- Supports aspect ratios from 21:9 to 9:21 for maximum creative flexibility
Example Generations
Here are some examples of what Flux Pro can produce:
"A luxury perfume bottle on black marble with dramatic studio lighting and water droplets"
"A medieval castle on a cliff overlooking a stormy sea at sunset, cinematic lighting"
"A gourmet chocolate dessert on a white plate with raspberry sauce and gold leaf, food photography"
Why People Love It
- Raw Mode is genuinely unique — images feel authentically captured rather than AI-generated
- 4MP native resolution means no upscaling artifacts
- Consistently high quality across diverse subjects and styles
- Fast enough for production workflows despite the high resolution
- Handles diversity in human subjects better than most models
Strengths
- 4MP native resolution enables print-quality output
- Raw Mode uniquely addresses the 'AI look' problem with natural aesthetics
- Top-tier image quality among all text-to-image models
- Excellent diversity in human subjects — avoids face-type bias common in other models
- Fast generation even at high resolutions (~10 seconds per image)
- Outstanding prompt adherence for complex, detailed instructions
Limitations
- Closed source with API-only access — no fine-tuning or local deployment
- Higher per-image cost than other FLUX variants
- Raw Mode may not suit all creative needs (some prefer the polished look)
- No community customization possible
Best Use Cases
- Professional photography-style images
- Print-quality asset creation and large-format materials
- Realistic human portraits and stock photography alternatives
- Marketing and advertising campaigns
- Any application requiring high-resolution output with natural aesthetics
Using Flux Pro on PicPresto
Flux Pro is available on PicPresto as a Pro tier model at 10 credits per image (approximately $0.05).
See examples and try Flux Pro →
Head to the studio, select the model from the model picker, write your prompt, and start creating.