Flux 1.1 Pro: Everything You Need to Know
Flux 1.1 Pro is the quality benchmark of the FLUX family at standard resolution. When it launched under the codename 'blueberry' on Artificial Analysis, it achieved the highest overall Elo score among all image models — beating both open and closed-source competitors. The headline achievement is generating images 6x faster than its predecessor while simultaneously improving quality, breaking the typical speed-quality tradeoff. It's the model to choose when you want the absolute best image quality at standard resolution without paying for 4MP output.
See examples and try Flux 1.1 Pro on PicPresto →
At a Glance
| Category | Image Generation |
| Creator | Black Forest Labs |
| Released | October 2, 2024 |
| Parameters | 12 billion |
| Architecture | Rectified Flow Transformer |
| Resolution | Up to ~1 megapixel (standard resolution) |
| License | Proprietary (API-only access) |
| PicPresto Tier | Pro |
| Credit Cost | 5 credits per image |
| Approx. Cost | $0.04 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
Same core FLUX architecture with proprietary quality optimizations. Hybrid multimodal and parallel diffusion transformer blocks with rotary positional embeddings and parallel attention layers for improved hardware efficiency.
Inference steps: Proprietary (optimized internally)
Key Innovations
- Achieved the highest overall Elo score on the Artificial Analysis image arena leaderboard at launch
- 6x faster generation than FLUX 1.0 Pro while simultaneously improving quality
- Breaks the traditional speed-quality tradeoff in image generation
- Proprietary optimizations on top of the proven FLUX rectified flow architecture
Example Generations
Here are some examples of what Flux 1.1 Pro can produce:
"A street photographer in a leather jacket reviewing photos on a vintage film camera, shallow depth of field"
"A modern minimalist living room with a large window overlooking snow-capped mountains"
"Fresh sashimi arranged on a wooden board with wasabi, ginger, and chopsticks"
Why People Love It
- Simply produces the best images at standard resolution — benchmarks back it up
- The 6x speed improvement means Pro quality doesn't require Pro-level patience
- Prompt adherence is remarkably precise — what you describe is what you get
- Versatile across photorealism, illustration, and artistic styles
- Reliably high quality with low variance between generations
Strengths
- Top-tier image quality — ranked #1 on major benchmarks at launch
- Outstanding prompt adherence with accurate, detailed instruction following
- 6x speed improvement over its predecessor makes it practical for production
- Strong diversity in outputs across styles, compositions, and human subjects
- Excellent photorealism and artistic versatility
Limitations
- Closed source — no weights available for download or fine-tuning
- API-only access creates dependency on third-party services
- Standard resolution output (not ultra-high-resolution like Flux Pro Ultra)
- Per-image pricing adds up for high-volume use cases
Best Use Cases
- Production-quality image generation where quality is the top priority
- Professional creative workflows requiring reliable output
- Marketing and advertising asset creation
- Applications requiring top-tier prompt adherence
- When you need Pro-level quality without paying for 4MP resolution
Using Flux 1.1 Pro on PicPresto
Flux 1.1 Pro is available on PicPresto as a Pro tier model at 5 credits per image (approximately $0.04).
See examples and try Flux 1.1 Pro →
Head to the studio, select the model from the model picker, write your prompt, and start creating.