Flux Pro Ultra AI Image Generator
Generate professional-grade images up to 2K resolution with Black Forest Labs' most powerful FLUX model.
Your generated image will appear here.
Enter a prompt and click 'Generate Image' to start.
What is Flux Pro Ultra?
Flux 1.1 Pro Ultra is the premium tier of the FLUX model family by Black Forest Labs — the team behind some of the most influential open-source AI image models. FLUX has rapidly become one of the most popular AI image generators, and Pro Ultra represents its highest quality offering.
What makes Flux Pro Ultra special is its combination of exceptional detail, up to 2K native resolution, and consistent quality. It produces sharp, artifact-free images with accurate prompt following — making it ideal for professional photography, product shots, and high-resolution artwork.
On RenderFlow AI, Flux Pro Ultra costs just 8 credits per image. You also have access to the entire FLUX family — from Flux Schnell (fast drafts) to Flux Kontext (image editing) — all in one platform.
Why Choose Flux Pro Ultra?
- Up to 2K Resolution — Native high-resolution output without upscaling
- Exceptional Detail — Fine textures, sharp edges, realistic materials
- Fast Generation — Quick results even at high resolution
- Consistent Quality — Reliable outputs with minimal artifacts
- Strong Ecosystem — Part of the FLUX family with LoRA support for custom styles
The FLUX Model Family on RenderFlow AI
RenderFlow AI gives you access to the complete FLUX ecosystem:
- Flux 1.1 Pro Ultra — Maximum quality, 2K resolution (this page)
- Flux 1.1 Pro — Professional quality at a lower cost
- Flux Kontext Pro/Max — AI image editing with text prompts
- Flux Dev LoRA — Custom styles with LoRA adaptations
- Flux Schnell LoRA — Fast generation with custom styles
Flux Pro Ultra vs The Competition
- vs Midjourney V7: Flux Pro Ultra is faster and half the credit cost (8 vs 16). Midjourney produces more cinematic/artistic results.
- vs Google Imagen 4: Flux offers higher max resolution (2K) and the LoRA ecosystem. Imagen 4 has more organic photorealism at a lower cost (5 credits).
- vs GPT-Image-1: Flux excels at photography and high-res output. GPT-Image-1 is better at text rendering and precise compositions.
- vs Stable Diffusion XL: Flux Pro Ultra delivers significantly better quality with zero setup. No GPU or technical knowledge required.
Flux Pro Ultra Examples
Professional headshot of a confident woman CEO in a modern office, natural window light, shallow depth of field, corporate photography
Misty mountain valley at dawn with a winding river, layers of fog between peaks, drone photography, epic landscape
Sleek electric sports car in a neon-lit underground parking garage, reflections on wet concrete, automotive photography
Macro photograph of a dewdrop on a spider web catching rainbow light, extreme close-up, nature photography
Abandoned Victorian greenhouse overgrown with tropical plants, shafts of golden light through broken glass ceiling, moody atmosphere
Artisan leather bag product shot on aged wooden table, warm directional light, minimalist composition, e-commerce photography
Frequently Asked Questions
What is Flux Pro Ultra?
Flux 1.1 Pro Ultra is the latest and most powerful model in the FLUX series by Black Forest Labs. It delivers professional-grade image quality with enhanced photorealism, support for resolutions up to 2K, and exceptional detail. FLUX has quickly become one of the most popular open-weight AI image models, and Pro Ultra represents its premium tier.
How to use Flux Pro Ultra on RenderFlow AI?
Select 'Flux 1.1 Pro Ultra' from the model dropdown on RenderFlow AI's image generator. Enter your prompt, choose an aspect ratio, and click Generate. No API key or Black Forest Labs account needed.
Is Flux Pro Ultra free on RenderFlow AI?
RenderFlow AI gives you 35 free credits on signup. Flux 1.1 Pro Ultra costs 8 credits per image, giving you 4 free generations. Paid plans start at $10/month with 600 credits.
How much does Flux Pro Ultra cost per image?
On RenderFlow AI, each Flux 1.1 Pro Ultra image costs 8 credits. With the Standard plan ($10/month, 600 credits), that's about $0.13 per image.
What is the difference between Flux Pro, Flux Pro Ultra, and Flux Schnell?
The FLUX family has several tiers:
- Flux Schnell — Fastest generation, good quality, lowest cost. Best for rapid iteration.
- Flux 1.1 Pro — Professional quality with great detail and prompt following. Balanced speed/quality.
- Flux 1.1 Pro Ultra — Maximum quality, up to 2K resolution, finest details and photorealism. Best for final output.
- Flux Kontext — Specialized for image editing and multi-image workflows.
- Flux Dev LoRA — Supports custom LoRA adaptations for personalized styles.
How does Flux Pro Ultra compare to Midjourney V7?
Both are excellent, with different characteristics:
- Flux Pro Ultra: Faster generation, more consistent outputs, better at following precise prompts, more affordable (8 vs 16 credits)
- Midjourney V7: More dramatic artistic style, stronger cinematic aesthetic, better at fantasy and concept art
- Key advantage: Flux Pro Ultra offers excellent quality at half the credit cost of Midjourney V7.
How does Flux Pro Ultra compare to Imagen 4?
Both deliver stunning photorealism:
- Flux Pro Ultra: Sharper details at high resolution (up to 2K native), slightly more stylized outputs, strong community and LoRA ecosystem
- Imagen 4: More natural/organic look, better at natural lighting, cheaper at 5 credits per image Both are available on RenderFlow AI for direct comparison.
What types of images is Flux Pro Ultra best at?
Flux 1.1 Pro Ultra excels at:
- High-resolution photography — Sharp, detailed images up to 2K
- Portraits — Excellent skin textures and facial detail
- Landscapes — Stunning natural environments with depth
- Product photography — Clean, professional commercial shots
- Digital art — Strong prompt following for creative styles
- LoRA-enhanced generation — Custom styles via the Flux Dev LoRA variant
Can I use Flux Pro Ultra images commercially?
Yes. Images generated through RenderFlow AI using Flux 1.1 Pro Ultra can be used for commercial purposes. Black Forest Labs' FLUX models have permissive licensing for commercial use.
What are the best prompts for Flux Pro Ultra?
Tips for optimal results with Flux Pro Ultra:
- Be descriptive — Include subject, setting, lighting, mood, and style
- Use photography terms — "bokeh", "golden ratio", "rule of thirds", "macro"
- Specify quality — "high detail", "sharp focus", "professional quality"
- Describe materials — "polished marble", "weathered wood", "brushed steel"
- Set the mood — "ethereal", "gritty", "minimalist", "luxurious"
Explore More AI Tools and Models
Google Imagen 4
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