Flux Pro 1.1 Ultra AI Image Generator
Black Forest Labs' premium model delivers ultra-high-resolution images up to 4 megapixels with state-of-the-art prompt adherence and visual quality.
Flux Pro 1.1 Ultra is the flagship model in the FLUX.1 family by Black Forest Labs — the team that created Stable Diffusion. It represents the absolute best of the Flux lineup: state-of-the-art performance with top-of-the-line prompt following, visual quality, image detail, and output diversity.
Built on the same 12B parameter hybrid diffusion transformer architecture as Flux Dev but without the distillation compromises, Flux Pro 1.1 Ultra produces images up to 4 megapixels — sharp enough for large-format prints, billboards, and any production context where resolution matters.
On NeonLights AI, Flux Pro 1.1 Ultra costs 20 credits per generation and shares the same 11 aspect ratios as Flux Dev, giving you maximum creative flexibility at the highest quality tier.
Key Features
Ultra High Resolution — 4MP
Produces images up to 4 megapixels — the highest native resolution in the Flux family, ideal for prints, posters, and production work.
State-of-the-Art Quality
Surpasses Midjourney v6.0, DALL·E 3 (HD), and SD3-Ultra in visual quality, prompt following, typography, and output diversity.
Top Prompt Adherence
Faithfully follows complex, multi-element prompts — every detail you describe appears exactly as requested.
11 Aspect Ratios
From ultra-wide 21:9 to ultra-tall 9:21 — the widest aspect ratio selection on NeonLights AI for any creative format.
Exceptional Typography
Renders text in images with industry-leading accuracy — perfect for signs, logos, labels, and design mockups.
Maximum Output Diversity
Preserves the full output diversity from pretraining, generating a wider range of styles and compositions than competing models.
The Premium Flux Experience
Flux Pro 1.1 Ultra is the result of Black Forest Labs' mission to build the industry standard for generative media. While Flux Dev is distilled for efficiency, Flux Pro 1.1 Ultra runs at full capacity — no shortcuts, no compromises.
The difference is most visible in fine detail: skin texture, fabric weave, reflections in glass, individual strands of hair. At 4 megapixels, these details are resolved with clarity that lower-resolution models simply can't match.
For users who need the absolute best output quality from the Flux architecture, this is the model to use.
Built by the Stable Diffusion Team
Black Forest Labs is the team behind Stable Diffusion, VQGAN, Latent Diffusion, Stable Video Diffusion, and adversarial diffusion distillation. Their FLUX.1 suite was released with $31 million in seed funding led by Andreessen Horowitz.
The Flux architecture uses flow matching — a general method for training generative models — combined with rotary positional embeddings and parallel attention layers in a 12B parameter multimodal diffusion transformer.
This isn't a fine-tuned checkpoint of an existing model. It's a ground-up architecture built by the researchers who created the field.
When to Choose Ultra Over Dev
Both models produce excellent results. Here's when to reach for Ultra:
Print and production — At 4MP, Ultra produces images large enough for posters, packaging, and editorial use without upscaling.
Maximum detail — When fine texture, micro-detail, and photographic sharpness matter: product photography, architectural visualization, portrait work.
Client-facing work — When you're delivering to clients who expect the highest possible quality and every pixel counts.
Typography-heavy designs — Both models handle text well, but Ultra's higher resolution means sharper, more legible typography at any size.
For everyday creative work and rapid iteration, Flux Dev at 8 credits is the more economical choice.
Tips for Best Results
Flux Pro 1.1 Ultra rewards precision in your prompts:
Be specific about quality cues — "Professional product photography, studio lighting, 8K detail" pushes the model toward its highest quality range.
Describe the scene fully — Subject, background, lighting, camera angle, mood, color palette. The more context you provide, the more precisely the model renders.
Use typography intentionally — Include quoted text and describe its style: "A coffee shop window with 'BREW' painted in gold leaf serif letters."
Leverage the aspect ratios — Use 21:9 for cinematic banners, 9:21 for tall mobile content, standard ratios for social media.
Technical Specifications
Pricing
20 Credits
20 credits per image — premium quality at the highest resolution tier in the Flux family.
Frequently Asked Questions
What is Flux Pro 1.1 Ultra?
Flux Pro 1.1 Ultra is the flagship image generation model from Black Forest Labs. It produces ultra-high-resolution images up to 4 megapixels with state-of-the-art prompt adherence and visual quality.
How is Flux Pro 1.1 Ultra different from Flux Dev?
Flux Pro 1.1 Ultra (20 credits) runs the full model without distillation, producing images up to 4MP with maximum detail. Flux Dev (8 credits) is distilled for efficiency and is more affordable but at a lower resolution tier.
What aspect ratios does Flux Pro 1.1 Ultra support?
Flux Pro 1.1 Ultra supports 11 aspect ratios: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, and 9:21.
Who created Flux Pro 1.1 Ultra?
Black Forest Labs — the team behind Stable Diffusion, VQGAN, and Latent Diffusion. They raised $31 million in seed funding led by Andreessen Horowitz.
Is Flux Pro 1.1 Ultra good for professional work?
Yes. At 4 megapixels, it produces images suitable for prints, posters, packaging, editorial use, and any production context where resolution and detail matter.
Can Flux Pro 1.1 Ultra render text in images?
Yes. Like all FLUX.1 models, it excels at typography — rendering text on signs, logos, labels, and other elements with high accuracy.
Try Flux Pro 1.1 Ultra Now
Generate ultra-high-resolution 4MP images with state-of-the-art quality — 20 credits per generation.
Generate Images with Flux Pro 1.1 Ultra