Black Forest Labs' compact, open-source image generation model with sub-second inference, optimized for production and near real-time applications with multi-reference support
Settled by community votes across 13 shared challenges, with an AI judge weighing in on each.
FLUX.2 [klein] 4B
22.3
arena score
#32 of 62 in Text-to-Image
Skill signature
· Text-to-Image
Imagen 4.0 Generate 001
17.1
arena score
#54 of 62 in Text-to-Image
Vote tally
Where the votes landed
FLUX.2 [klein] 4B
0%
win rate
Ties
0%
Imagen 4.0 Generate 001
0%
win rate
Shared challenges
13
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent adherence to the 'partially visible through the glass' instruction for the plant.
- + Realistic lighting and reflections on the glass and wooden surfaces.
- + Precise scale and composition of requested objects.
Imagen 4.0 Generate 001
- + High resolution with sharp textures on the book cover.
- + Clean, minimalist aesthetic.
- − The plant is not visible through the glass, which appears more like a mirror than transparent glass.
- − The physics of the blue sphere floating are less grounded given the realistic setting.
- − The book is disproportionately large compared to the cube.
Verdict: FLUX.2 [klein] 4B followed the complex spatial instructions perfectly, especially regarding the transparency of the glass and the placement of the plant behind it. Imagen 4.0 Generate 001 failed to make the glass transparent, resulting in the plant being obscured and creating a more surreal image than the prompt suggested.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent depiction of heavy rain and ground reflections
- + Wide frame captures the urban environment effectively
- + Good full-body anatomy and pose for the subject
- − The 'repair' action is vague, as he is just leaning on the bike
- − Lacks the requested motion blur from passing cars
Imagen 4.0 Generate 001
- + Stronger adherence to the 'repairing' aspect of the prompt with a tool
- + Superior skin texture and facial detail
- + Captures an 'imperfect framing' look that feels more candid
- − Physical logic errors with the bicycle components and tool placement
- − The rain effect is more subtle and less atmospheric than the competitor
Verdict: Imagen 4.0 Generate 001 is the preferred image because it better captures the specific story of 'repairing' the bicycle and follows the request for natural skin textures and imperfect framing more closely. While FLUX.2 [klein] 4B has better environmental atmosphere and reflections, it fails to show an actual repair taking place and ignores the motion blur requirement.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent photorealistic skin texture and lifelike eyes
- + Accurate depiction of dirt and faint scarring on the face
- + Strong depth of field with realistic bokeh
- − Armor engravings are a bit chunky and less fine than the competitor
- − The beads in the hair are very sparse and barely noticeable
Imagen 4.0 Generate 001
- + Intricate and highly detailed filigree engraving on the plate armor
- + Impressive interpretation of braids with numerous metallic beads
- + Excellent lighting contrast from the torch across the facial features
- − Skin texture appears slightly more stylized or 'cg' compared to Image A
- − The scars look more like deep wrinkles or skin folds rather than battle wounds
Verdict: FLUX.2 [klein] 4B produces a much more realistic human portrait with incredibly lifelike skin and eyes, though the armor is slightly simpler. Imagen 4.0 excels at the ornate details of the armor and the technical execution of the braided hair and beads, but it has a more digital/artistic sheen. FLUX.2 is the winner for its superior realism and adherence to the 'battle-worn' aesthetic.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent photographic quality and lighting in the food images
- + Features a comprehensive list of items with clear pricing
- + Good use of bold headers and various section layouts
- − Text contains a high degree of gibberish and misspelling
- − Layout feels slightly crowded with tight margins between grid elements
Imagen 4.0 Generate 001
- + Superb adherence to the grid layout requested
- + Much higher text legibility for main category headers
- + Strong execution of the modern minimalist aesthetic with geometric accents
- − Fewer food categories represented than Image A
- − The text for individual dishes is still largely nonsensical
Verdict: Both models captured the essence of the prompt, but Imagen 4.0 provided a superior layout and design that felt more like a professional graphic design piece. While FLUX.2 produced very appetizing food photography, its text rendering and overall composition were more cluttered and difficult to read compared to the clean, structured approach of Imagen 4.0.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent photographic quality and lighting on the burger textures.
- + The starburst design for the price is well-integrated and vibrant.
- − Failed the main 'exploded' composition, showing a mostly assembled burger.
- − Significant text spelling errors in the primary title ('MAAC AGIR BUIRCGGER').
Imagen 4.0 Generate 001
- + Perfectly follows the 'exploded burger' prompt with all components suspended.
- + Text is rendered with perfect spelling and the requested fiery glow effect.
- + Composition is dynamic and professional for an advertisement.
- − The price format uses a comma instead of a period (€6,99), which may be regional but differs from the prompt's exact string.
- − Some textures like the lettuce look slightly less photorealistic compared to the other model.
Verdict: Imagen 4.0 Generate 001 is the clear winner as it successfully followed the core structural requirement of an 'exploded' burger, whereas FLUX.2 [klein] 4B provided a static, assembled burger. Additionally, Imagen 4.0 handled all text rendering perfectly, while FLUX.2 [klein] 4B produced severe spelling gibberish in the main title.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent realistic chalk texture with smudges and dust on the board.
- + Strong adherence to the 'handwritten-style' requested with casual, authentic-looking cursive.
- + Good composition that feels like a real café menu.
- − Several spelling errors including 'Truffel Musheram', 'Ootpous', and 'Brawn Buter'.
- − Slight spacing issue in the word 'SPECIALS'.
Imagen 4.0 Generate 001
- + Near-perfect spelling of the menu items and title.
- + Clean, legible handwriting that maintains a consistent style.
- + Accurately rendered the complex 'Brown Butter Chocolate Chip Cookies' item.
- − Included meta-commentary from the prompt prompt like 'Tittle Menu' and 'Footer' as actual text on the board.
- − The chalk texture is too clean and looks more like a digital font than real chalk.
- − Included sentences of gibberish describing the handwriting style on the board itself.
Verdict: FLUX.2 [klein] 4B produces a much more realistic image that captures the authentic texture and 'soul' of a chalkboard, despite struggling with spelling. Imagen 4.0 Generate 001 provides much better text accuracy for the requested items but fails significantly by including prompt instructions (like 'Title' and 'Footer') and descriptive meta-text as part of the visual output, which ruins the immersion.
The Reversed Rodeo
Text-to-Image“Horse riding astronaut in space — horse on top, not vice versa. Surreal, highly detailed, cinematic.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent anatomical realism for both the horse and the astronaut's space suit.
- + Great lighting coherence with a soft glow reflecting off the horse's coat from the planet below.
- + High clarity and sharp detailing in the horse's textures and the background starfield.
- − Failed the negative constraint: the astronaut is on top of the horse, not vice versa as requested.
- − The 'surreal' aspect is minimal, appearing more like a standard composite than a surrealist piece.
Imagen 4.0 Generate 001
- + Enhanced surrealist aesthetic with nebula patterns integrated into the horse's coat and helmet visor.
- + Dynamic composition with flowing mane and atmospheric light trails that add a cinematic feel.
- + Creative use of stardust kicking up from the planet's surface.
- − Failed the specific spatial constraint: the astronaut is riding the horse, ignoring the instruction for 'horse on top'.
- − The trailing leg anatomy of the horse is slightly awkward and lacks the structural solidity seen in the other model.
Verdict: Both FLUX.2 and Imagen 4 failed to follow the specific 'horse on top' instruction, which was a trick prompt designed to test strict spatial adherence. Imagen 4.0 is preferred as it better captures the 'surreal' and 'cinematic' keywords with more imaginative lighting and textures, whereas FLUX.2 provides a very clean but more literal interpretation of the scene.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Natural photographic texture and lighting.
- + Accurate portrayal of human facial expressions and hands.
- − Internal car structure appears slightly cramped or irregular.
Imagen 4.0 Generate 001
- + Very clean and clear text rendering on the taxi signs.
- + Excellent spatial layout of the vehicle interior.
- − Image has a smoother, more digital CGI aesthetic than photorealistic.
- − The capybara's claws are unusually long and distracting.
Verdict: FLUX.2 [klein] 4B produces a much more convincing photorealistic image with natural lighting and human details. While Imagen 4.0 Generate 001 handles the taxi icons and car geometry with more precision, its overall look feels more like a 3D render than a real photograph.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Atmospheric cinematic lighting and textures
- + Excellent integration of thorns and cobwebs into the frame
- − Significant spelling errors in the main title
- − Inaccurate date and location text
Imagen 4.0 Generate 001
- + Perfect text rendering for all requested titles and details
- + Clear information hierarchy with a clean layout
- + Effective use of the scroll banner element
- − Illustrative style is less 'cinematic' and feels more like a vector cartoon
- − Asymmetrical border with a strange scroll pillar on the left
Verdict: While FLUX.2 [klein] 4B produces a much more atmospheric and high-quality artistic image, it fails significantly on the text rendering requirements. Imagen 4.0 Generate 001 provides a perfectly legible invitation with 100% accuracy on the event details, making it the more functional choice for this specific prompt.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Perfectly follows text instructions including 'JAPAN' and 'SUSHI' with a flag icon.
- + Accurately renders the solid light blue background and isometric 45° angle.
- + Clean, stylized 3D cartoon aesthetic with soft refined textures as requested.
- − Missing the final 'I' in 'SUSHI', rendering it as 'SUSH'.
- − The flag icon is a generic red and white rectangle rather than the specific Japanese flag.
Imagen 4.0 Generate 001
- + Excellent food textures and realistic PBR materials, especially on the salmon and roe.
- + Great execution of the 'raised diorama base' (cylindrical plinth).
- − Completely ignored all text requirements ('JAPAN', 'SUSHI', flag).
- − Failed to provide the requested solid light blue background.
- − The camera angle is a standard eye-level macro shot rather than a 45° isometric view.
Verdict: FLUX.2 [klein] 4B is the clear winner as it followed almost every specific prompt instruction, including the layout, background color, and text placement, despite a small typo in the word 'SUSHI'. Imagen 4.0 Generate 001 produced a high-quality realistic image of sushi, but failed significantly on prompt adherence by omitting the text, flag, and specific background color requested.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent depiction of soft, realistic fur textures
- + Beautiful natural lighting with distinct god rays
- + High animal species accuracy for the puppy, kitten, and fox
- − Failed to include the baby bunny
- − Included two kittens instead of one kitten and one bunny
- − Butterflies appear a bit flat and illustrative compared to the animals
Imagen 4.0 Generate 001
- + Successfully included all four requested animals: puppy, kitten, bunny, and fox
- + More dynamic posing that captures the 'tumbling together' part of the prompt
- + Detailed dew sparkles on the grass
- − The fox kit has unusual dark, paw-like hands instead of natural fox paws
- − The kitten's eye color and facial structure feel slightly more digital/artificial than Model A
- − Composition feels a bit more cramped with the oversized flowers
Verdict: Imagen 4.0 Generate 001 followed the prompt requirements more accurately by including all four requested baby animals, whereas FLUX.2 [klein] 4B missed the bunny entirely and substituted it with a second kitten. While FLUX.2 exhibited slightly superior lighting and realistic fur rendering, Imagen 4.0 captured the specific 'tumbling' action and variety requested in the prompt.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Excellent typography style that fits the 'classic' requirement
- + Strong aesthetic adherence to the warm brown and cream color palette
- + Good use of texture on the background to enhance the vintage feel
- − Significant spelling error in the primary text ('FLAXTION' instead of 'FLORIAN')
- − Repetitive text with 'Est. 1720' appearing twice in the layout
Imagen 4.0 Generate 001
- + Perfect text rendering with no spelling errors
- + Clean, minimalist vector style that perfectly follows the prompt instructions
- + Well-balanced composition with an elegant cloche design
- − The 'Est. 1720' banner is a bit simple compared to the 'vintage' request
- − The typography is more modern/sans-serif than 'classic'
Verdict: While FLUX.2 [klein] 4B captured the vintage textures and classic typography style much better, it failed significantly on the text spelling and layout logic. Imagen 4.0 Generate 001 produced a clean, professional, and perfectly spelled logo that adheres to all prompt elements, making it the more usable result.
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.”
FLUX.2 [klein] 4B
Imagen 4.0 Generate 001
AI Judge Analysis
FLUX.2 [klein] 4B
- + Successfully captures the requested color palette well.
- + Includes most of the requested mission steps and iconography types.
- − Text rendering is very poor with significant misspellings throughout.
- − Layout is cluttered and lacks a clear logical flow for an infographic.
- − The Saturn V illustration is inaccurate and looks more like a modern generic rocket.
Imagen 4.0 Generate 001
- + Excellent text rendering with no spelling errors in major headings.
- + The infographic layout is clean, logical, and visually appealing with clear connections.
- + The Saturn V rocket illustration is much more accurate to the actual historical vehicle.
- − Missed the final two steps of the requested sequence (Descent and Landing).
- − The 'Launch' icon shows an Earth orbit rather than a launch-specific icon.
Verdict: Imagen 4.0 Generate 001 provides a significantly more professional and polished graphic with perfect text rendering and superior layout, though it fails to include the final two steps of the requested sequence. FLUX.2 [klein] 4B follows the step-by-step instructions better but fails significantly on text legibility and overall aesthetic consistency. Imagen 4.0 is the preferred choice for its high visual quality and accuracy of the elements it did include.
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