Black Forest Labs' ultra-high resolution image generation model, an enhanced version of FLUX1.1 [pro] optimized for premium quality output
Settled by community votes across 13 shared challenges, with an AI judge weighing in on each.
FLUX1.1 [pro] Ultra
#51 of 62 in Text-to-Image
Grok Imagine Image
#27 of 62 in Text-to-Image
Where the votes landed
FLUX1.1 [pro] Ultra
0%
win rate
Ties
0%
Grok Imagine Image
0%
win rate
Challenge by challenge
The strongest take from each model on every shared challenge, with the AI judge's read.
Geometric Composition
Text-to-Image“A glass cube on a wooden table. Inside the cube is a small blue sphere. On top of the cube sits a red book. A green plant is behind the cube, partially visible through the glass. Soft window light from the left.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent realism with sharp textures on the table and book
- + Correct interpretation of a 'glass cube' with thin, realistic pane edges
- + Accurate lighting and reflections consistent with a window on the left
- − The blue sphere appears to be floating without a visible support
Grok Imagine Image
- + Naturalistic wooden table texture
- + Successfully follows all spatial prompts including the plant behind the glass
- − The 'cube' has rounded, thick edges that look more like a solid block than a glass cube
- − The blue sphere appears small and somewhat disconnected from the scene's lighting
Verdict: FLUX1.1 [pro] Ultra produces a much more sophisticated and realistic image with superior glass rendering and detailed text on the book spine. While Grok Imagine Image follows the prompt accurately, its central glass object lacks the geometric precision and clarity found in the FLUX output, which captures the lighting and materials with higher fidelity.
Candid Street Photography
Text-to-Image“A candid street photo of an elderly Japanese man repairing a red bicycle in light rain, reflections on wet pavement, shallow depth of field, 50mm lens, natural skin texture, imperfect framing, motion blur from passing cars, cinematic but realistic, no stylization.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent execution of long-exposure motion blur on passing cars.
- + High clarity and realistic skin texture on the subject.
- + Strong composition with a cinematic color grade.
- − The framing feels too clean and centered for an 'imperfect framing' prompt.
- − The subjects hands appear somewhat merged with the bicycle frame/basket.
Grok Imagine Image
- + Perfectly captures the 'imperfect framing' and 'candid' aesthetic of street photography.
- + Achieves a very realistic, unstylized look characteristic of a 50mm lens on film.
- + Includes subtle cultural details like the face mask.
- − The motion blur on the car is quite subtle compared to model A.
- − The facial features are obscured by the angle and mask, limiting the 'natural skin texture' check.
Verdict: FLUX1.1 [pro] Ultra produces a more visually striking, cinematic image with expert handling of motion blur, while Grok Imagine Image better captures the 'candid, imperfect, no stylization' aspect of the prompt. FLUX1.1 is the winner for its technical superior handling of the specific subjects like faces and bicycle details, despite following the 'imperfect' instruction less literally.
Fantasy Warrior
Text-to-Image“Close portrait of a battle-worn paladin in ornate engraved plate armor, hair braided with small beads, faint scars and dirt on the skin, warm torchlight reflecting off metal, shallow depth of field, bokeh sparks, lifelike eyes, highly detailed texture on leather straps and cloth underlayer.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- − The image failed to load entirely and is a solid black square.
Grok Imagine Image
- + Excellent adherence to all prompt elements including engraved armor, braided hair with beads, and bokeh sparks.
- + High visual quality with realistic textures on the skin and metal.
- + Strong composition with effective use of warm torchlight and depth of field.
- − The leather strap under the gorgon plate has a slightly inconsistent physics where it meets the shoulder.
Verdict: FLUX1.1 [pro] Ultra failed to generate a visible image, resulting in a black frame. Grok Imagine Image successfully fulfilled the prompt with high detail, capturing the specified textures, lighting, and character features perfectly.
Modern Clean Menu
Text-to-Image“Modern minimalist restaurant menu design, white background with colorful food photos in grid, sections for appetizers/pizza/mains, bold sans-serif fonts, vibrant accents, clean professional layout for casual dining.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Exhibits a very clean, professional white space usage.
- + High resolution food photography with realistic textures.
- + Better adherence to the 'grid' prompt for the food photos.
- − Nonsense filler text and spelling errors like 'Pizzzans'.
- − The layout is slightly cluttered in the center section.
Grok Imagine Image
- + Much better text legibility and recognizable menu item names.
- + Excellent use of bold sans-serif fonts for clear sectioning.
- + Follows the 'appetizers/pizza/mains' categorization more logically for a real menu.
- − Food photos are less integrated and lack the 'grid' structure mentioned.
- − Lower image clarity on the smaller body text compared to model A.
Verdict: Grok Imagine produces a more functional and realistic menu layout with legible food names and clear sectioning, whereas FLUX1.1 [pro] Ultra focuses more on high-impact food photography but fails on text accuracy. While FLUX1.1 has better technical image quality, Grok's interpretation of the UI/UX design task for a restaurant is more coherent and usable.
Magic Burger Explosion: Fiery Photorealism Challenge
Text-to-Image“Ad for 'Magic Burger'. Dynamic, exploded burger with all components (bun, patty, cheese, lettuce, tomato, sauce) suspended in mid-air. Emphasize photorealistic detail and a sense of motion. Dark, fiery background with glowing embers. Integrate text: 'MAGIC BURGER' as a prominent title, 'LIMITED TIME ONLY' as a secondary message, and '€6.99' in a starburst, all rendered with a fiery, glowing effect.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent photorealistic lighting and depth in the burger stack.
- + High-quality text rendering with a clean, glowing aesthetic.
- + Strong composition with a balanced foreground of embers and flames.
- − Failed to include the requested starburst for the price.
- − The burger is more of a stack than a dynamic 'exploded' view where components fly outward.
Grok Imagine Image
- + Followed all prompt instructions including the starburst for the price.
- + Captured the 'exploded' motion perfectly with components flying in various directions.
- + The fiery glowing effect on the text is very well-integrated into the theme.
- − The 'LIMITED TIME ONLY' text is slightly less polished than Model A.
- − Some components like the lettuce leaves look slightly more illustrative compared to the patty.
Verdict: Grok Imagine Image followed the prompt more accurately by including all requested elements, specifically the starburst and the outward 'exploded' motion of the ingredients. While FLUX1.1 [pro] Ultra produced a more polished, high-resolution aesthetic, it failed the starburst requirement and presented a static stack rather than one in motion.
Chalkboard Menu
Text-to-Image“Handwritten-style chalkboard menu in a cozy café, all text rendered in the exact same realistic chalk handwriting style with natural variations in letter size, slight slant, and chalk texture — no printed or digital fonts anywhere on the board. Title at the top in elegant cursive chalk handwriting: ‘TODAY’S SPECIALS – APRIL 30, 2026’. Below it, three menu items also in the same handwritten chalk style: ‘Truffle Mushroom Risotto – $24’, ‘Grilled Octopus with Lemon & Herbs – $28’, ‘Brown Butter Chocolate Chip Cookies – $9’. At the very bottom, smaller text in the identical handwritten chalk style (slightly smaller but still clearly legible with the same handwriting characteristics): ‘All items made fresh daily • Ask about our gluten-free options’. Warm ambient café lighting, visible chalk dust and smudges, realistic handwriting imperfections, no clean printed text anywhere.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent realistic chalk texture on a dark board.
- + The handwriting looks very human and organic with natural slants.
- + Crisp resolution and clear wooden frame details.
- − Serious spelling errors and repetitive garbled text in the menu items.
- − Failed to include 'Herbs' in the second item and hallucinated extra lines of text.
- − The title font is print-like rather than the requested 'elegant cursive'.
Grok Imagine Image
- + Perfect adherence to the requested text with zero spelling errors.
- + Consistent and beautiful handwriting style throughout the entire board.
- + Excellent chalkboard atmosphere with realistic smudges and chalk dust.
- − The cursive is relatively simple, though still fits the prompt better than the competitor.
- − Perspective at the bottom edge is slightly distorted.
Verdict: Grok Imagine is the clear winner because it followed the complex text requirements perfectly without a single spelling error or hallucination. FLUX1.1 [pro] Ultra produced a visually appealing texture but failed significantly on the prompt adherence, featuring repeated words, missing items, and garbled nonsense text.
The Reversed Rodeo
Text-to-Image“Horse riding astronaut in space — horse on top, not vice versa. Surreal, highly detailed, cinematic.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent high-resolution detail on both horse and astronaut.
- + Cinematic lighting and composition with a realistic Earth background.
- + Clean, sharp rendering without visual artifacts.
- − Failed the core spatial logic of the prompt, showing the astronaut riding the horse.
Grok Imagine Image
- + Successfully followed the difficult spatial instruction of having the horse on top of the astronaut.
- + Vibrant nebula colors and a surreal atmospheric quality.
- + Good rendering of the horse's musculature and movement.
- − The astronaut's pose is somewhat awkward and disconnected from the 'riding' concept.
- − Lower clarity and more digital noise compared to Model A.
Verdict: While FLUX1.1 [pro] Ultra produced a much higher quality, more cinematic image, it completely ignored the negative constraint of the prompt ('horse on top, not vice versa'). Grok Imagine Image correctly interpreted the surreal spatial requirement, making it the more successful model for this specific creative challenge despite having slightly lower technical fidelity.
The Capybara Taxi Driver
Text-to-Image“Photorealistic scene inside a yellow New York taxi at night. A capybara is driving, wearing a yellow taxi driver cap and a dark jacket. It has a calm, professional expression and both front paws on the steering wheel. In the back seat sits a human businesswoman in a coat, looking at her phone with a completely normal, bored expression (as if this is just another normal ride). Through the windows you can see the streets of Manhattan at night with blurred lights. Realistic taxi interior, photorealistic, detailed fur and fabric, 35mm lens, night lighting with reflections, shallow depth of field.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent fur texture and lighting on the capybara.
- + High cinematic quality with professional bokeh in the background.
- − Failed the spatial layout by placing the passenger in the front passenger seat next to the driver instead of the back seat.
- − The businesswoman appears more like a glamorized model than a bored professional.
- − The steering wheel appears to be emerging from the dashboard rather than being held correctly by both paws.
Grok Imagine Image
- + Perfect adherence to the spatially complex prompt, placing the passenger in the back seat and driver in the front.
- + Captures the requested 'bored' and 'normal' expression of the businesswoman more effectively.
- + Includes realistic taxi details like the meter and fare stickers.
- − The capybara's paws look slightly more like sharp claws/talons than soft paws.
- − The overall image has a slightly flatter, less cinematic lighting than Model A.
Verdict: While FLUX1.1 [pro] Ultra has higher artistic fidelity and better textures, Grok Imagine is the clear winner for prompt adherence. FLUX1.1 failed to place the passenger in the back seat as requested, whereas Grok Imagine successfully followed every detail of the brief, including the specific expressions and the complex interior layout of the taxi.
The Halloween Invitation
Text-to-Image“Vintage gothic Halloween party invitation. Dark parchment poster, spooky border with webs and thorns, central glowing jack-o-lantern, bats, twisted trees, moody night sky. Add elegant gothic title text saying "Halloween Party Invitation", a small scroll banner saying "You are invited to a night of frights", and event details at the bottom: Date: 30.10.2026 Time: 7pm Location: The Arches, NYC Spooky but polished, cinematic lighting, square format.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent typography rendering with crisp, clean gothic fonts
- + Complex layered composition using both thorns and twisted tree silhouettes
- − Repetitive text with a significant misspelling ('noickt') in the secondary section
- − Missed the word 'Party' in the main title
- − The thorn border is a bit messy and overlaps in a chaotic way
Grok Imagine Image
- + Perfect adherence to all requested text including the full title and scroll banner
- + Subtle and atmospheric integration of the moon and bats into the background
- + Very clean, balanced layout that feels like a professional poster
- − The thorns are somewhat repetitive and thick on the lower edges
- − The transition between the parchment and the black background is a bit harsh
Verdict: Grok Imagine Image followed the text instructions perfectly, including every specific line and the full title without any typos, which is rare for complex layouts. While FLUX1.1 [pro] Ultra has a slightly more intricate gothic aesthetic, it failed on several text elements, including a major misspelling and leaving out a word from the title.
Isometric Miniature Diorama Scenes
Text-to-Image“Create a clear, 45° top-down isometric miniature 3D cartoon scene of Japan's signature dish: sushi, with soft refined textures, realistic PBR materials, gentle lighting, on a small raised diorama base with minimal garnish and plate. Solid light blue background. At top-center: 'JAPAN' in large bold text, 'SUSHI' below it, small flag icon. Perfectly centered, ultra-clean, high-clarity, square format.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent soft refined textures and PBR material rendering.
- + Sophisticated typography that integrates well with the scene.
- + High level of detail in the miniature elements and lighting.
- − Includes some irrelevant elements like several small extra dishes and a plant that cluttered the 'minimal' request.
- − The 'JAPAN' text is slightly warped along a curve rather than being simple flat bold text.
Grok Imagine Image
- + Perfect adherence to the flat bold text and flag icon layout.
- + Clean, minimal composition with a clear focus on the sushi.
- + Correct 45-degree isometric projection.
- − Texture quality is a bit more plastic and less 'refined PBR' compared to its competitor.
- − Shadows are a bit harsh and simple.
Verdict: FLUX1.1 [pro] Ultra produces a more visually stunning image with beautiful lighting and realistic textures, though it adds extra elements not requested. Grok Imagine Image follows the layout instructions more precisely, particularly regarding the text and flag, but lacks the material depth of the other model. FLUX1.1 [pro] Ultra is the likely winner for its superior 'refined' aesthetic and high-end 3D render quality.
Adorable Baby Animals in Sunny Meadow
Text-to-Image“Hyper-photorealistic scene of fluffy baby animals—a golden retriever puppy, tabby kitten, baby bunny, and red fox kit—with big expressive eyes and ultra-detailed soft fur, playfully chasing butterflies and tumbling together in a lush wildflower meadow, warm golden sunrise light with god rays and dew sparkles, joyful wholesome vibe, 8K masterpiece.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent adherence to the 'butterflies' and 'sun rays' part of the prompt
- + Superior rendering of fine fur textures and individual grass blades
- + Beautifully soft, professional bokeh and lighting
- − The animals are sitting relatively still rather than 'tumbling' and 'chasing'
- − The animals look more like toys or digital paintings than hyper-photorealistic creatures
Grok Imagine Image
- + Successfully captures the dynamic 'chasing' and 'tumbling' action requested
- + Visible dew sparkles on the flowers as specified in the prompt
- + Rich, vibrant colors and high-energy composition
- − Completely missed the 'butterflies' requirement
- − Over-processed, illustrative look that lacks photorealism
- − Severe anatomical issues, specifically a floating extra limb on the fox
Verdict: FLUX1.1 [pro] Ultra created a much more polished and aesthetically pleasing image with better prompt following regarding the butterflies and light rays, even though the animals are more static. Grok Imagine Image captured the sense of movement better but suffered from significant anatomical errors (floating limbs) and failed to include the butterflies entirely. FLUX1.1 is the clear winner for its superior technical quality and detail.
Vintage Cafe Logo
Text-to-Image“Vintage minimalist restaurant logo for "Caffè Florian", retro cloche dome with steam and "Est. 1720" banner, classic typography, warm brown and cream tones, subtle texture on light background, vector emblem style.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent emblem-style composition with a professional circular badge layout.
- + Rich, warm tonal palette that perfectly matches the 'vintage' aesthetic.
- + High-quality vector illustration style with clean lines and sophisticated shading.
- − Misspelled the primary brand name as 'Caffé Framilian'.
- − The text 'EST. 1720' is not on a banner as requested, but placed within the circle.
Grok Imagine Image
- + Perfect text rendering for 'Caffè Florian'.
- + Successfully included the 'Est. 1720' banner beneath the cloche.
- + Strong minimalist execution with a balanced layout.
- − The steam effect looks slightly cartoonish and detached from the cloche knob.
- − Redundant repetition of 'Est. 1720' both on the banner and below the main text.
- − The addition of a coffee cup handle/spoon emerging from the cloche is slightly confusing visually.
Verdict: Grok Imagine Image is the winner because it accurately rendered the requested brand name 'Caffè Florian', whereas FLUX1.1 [pro] Ultra hallucinated 'Framilian'. While FLUX1.1 [pro] Ultra had a more cohesive and professional vintage emblem design, the failure on the primary text makes it unusable for a logo task.
Apollo 11: Journey to Tranquility
Text-to-Image“Create a clean, modern vector infographic poster about the Apollo 11 mission. NASA-inspired palette (navy, white, muted red, light gray). Flat-vector style, crisp lines, consistent iconography, subtle gradients only. Steps (stop at landing): 1. Launch (Saturn Vicon) 2. Earth Orbit (Earth + orbit ring icon) 3. Translunar (trajectory arc icon) 4. Lunar Orbit (Moon + orbit ring icon) 5. Descent (lunar module descending icon) 6. Landing (lunar module on the surface icon) Small supporting elements (minimal text): • Crew strip: three silhouette icons with only last names: Armstrong, Aldrin, Collins. • Landing site marker: Moon pin labeled "Tranquility" only. Layout constraints: generous margins, large readable labels, clean background with subtle stars. Vector-only, print-poster look, high resolution.”
AI Judge Analysis
FLUX1.1 [pro] Ultra
- + Excellent colors and a very high-end modern vector aesthetic.
- + Beautifully balanced composition using the lunar horizon as a grounding element.
- + High level of visual consistency across icons.
- − Step numbering is chaotic and non-sequential.
- − Significant amounts of gibberish text throughout the infographic.
- − The icons do not clearly represent the specific requested stages (e.g., Earth vs Moon icons).
Grok Imagine Image
- + Clear numerical sequence following the requested steps.
- + Very high legibility for main headings and titles.
- + Specific icons accurately represent the technical stages requested (Saturn V, trajectory arc, Lunar Module).
- − Layout is a bit crowded and lacks the artistic sophistication of a professional poster.
- − The 'NASA' logo has minor rendering artifacts.
- − Typography on smaller labels is inconsistent.
Verdict: FLUX1.1 [pro] Ultra creates a more visually stunning, artistic infographic that looks like professional vector art, but it fails significantly on logical flow and text clarity. Grok Imagine Image much better adheres to the sequential logic of the prompt and provides clear, legible text for the mission steps, making it more functional as an infographic. Grok is the preferred choice for following the specific instructional structure of the prompt despite FLUX's superior artistic style.
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An image generation model by xAI designed to generate highly aesthetic images from text descriptions.