Black Forest Labs' 12-billion parameter multimodal flow transformer for in-context image generation and editing with character consistency, typography handling, and commercial-ready quality
Settled by community votes across 13 shared challenges, with an AI judge weighing in on each.
FLUX.1 Kontext [pro]
20.3
arena score
#41 of 62 in Text-to-Image
Skill signature
· Text-to-Image
Imagen 4.0 Fast Generate 001
17.7
arena score
#52 of 62 in Text-to-Image
Vote tally
Where the votes landed
FLUX.1 Kontext [pro]
0%
win rate
Ties
0%
Imagen 4.0 Fast 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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent adherence to the 'behind the cube' spatial instruction for the plant.
- + Very realistic soft window light rendering.
- + Clean and simple composition that feels like a natural photograph.
- − The blue sphere has a fuzzy, felt-like texture rather than appearing as a smooth or glass-like sphere.
- − The perspective of the table edge is slightly missing compared to Image B.
Imagen 4.0 Fast Generate 001
- + High-quality rendering of light and reflections, especially on the sphere and table surface.
- + The blue sphere has a better material quality that complements the glass theme.
- + Strong attention to detail on the book spine.
- − Failed the spatial instruction 'behind the cube', placing the plant mostly to the side.
- − The base of the glass cube appears to be a mirror rather than clear glass, which was not requested.
Verdict: While both models followed the object placements well, FLUX.1 Kontext [pro] correctly interpreted the spatial relationship of the plant being behind the cube, visible through the glass. Imagen 4.0 Fast Generate 001 produced a more vibrantly lit image with superior textures on the sphere, but the plant placement and the mirror-like base of the cube deviate from the prompt requirements.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent skin texture and facial details
- + Strong atmospheric rain and lighting effects
- + Realistic 50mm shallow depth of field
- − The man appears to be riding or holding the bike rather than repairing it
- − Missing the requested motion blur from passing cars
Imagen 4.0 Fast Generate 001
- + Better adherence to the 'repairing' action
- + Captures the 'imperfect framing' with the foreground window/frame
- + Excellent wet pavement reflections
- − The man's face and upper body are partially cut off
- − Hand anatomy is significantly distorted
- − Cars are static and lacking the requested motion blur
Verdict: FLUX.1 Kontext [pro] produces a much higher quality portrait with superior skin texture and lighting, though it misses the specific action of 'repairing'. Imagen 4.0 Fast Generate 001 adheres better to the framing and action requests but suffers from poor anatomical coherence in the hands and a less polished composition. FLUX.1 KONTEXT is the preferred choice for its photographic realism.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent adherence to all prompt elements including plate armor, braided hair, and bokeh sparks.
- + High-fidelity textures on skin, metal engravings, and cloth underlayers.
- + Effective use of warm lighting and shallow depth of field to create mood.
- − The 'small beads' in the hair are relatively subtle and minimal.
Imagen 4.0 Fast Generate 001
- + Natural-looking lighting and environment for a garden setting.
- − Complete failure to follow the prompt instructions regarding subject, attire, and setting.
- − Lacks the requested 'close portrait' framing, instead providing a full-body shot.
- − Missing all fantasy elements like armor, scarred skin, or torchlight.
Verdict: FLUX.1 Kontext [pro] followed the prompt with extreme precision, delivering a high-quality fantasy portrait with detailed armor and lighting. Imagen 4.0 Fast Generate 001 completely failed the prompt, generating an image of an elderly man in a modern garden which had no relation to the requested instructions.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent typographic hierarchy with bold, legible headers
- + High-quality, appetizing food photography
- + Clean layout that balances text and imagery well
- − The 'Grid' layout is more of a standard alternating list than a true grid
- − Contains some gibberish text in the descriptions
Imagen 4.0 Fast Generate 001
- + Strong adherence to the 'grid' requirement with multiple images
- + Vibrant color accents through blocks and photos
- + Comprehensive layout including a variety of sections and prices
- − Significant spelling errors in headers (e.g., 'APETIERS')
- − Section repetition with 'PIZZA' appearing twice in the layout
- − Smaller text is blurry and illegible
Verdict: FLUX.1 Kontext [pro] produces a more professional and visually appealing design with superior image quality and cleaner typography, making it look like a real menu at first glance. While Imagen 4.0 Fast Generate 001 followed the 'grid' prompt more closely and used vibrant color blocks well, it suffered from obvious spelling mistakes and redundant section headers.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent photorealistic texture on the burger bun and patty
- + Vibrant, high-contrast lighting that fits the 'fiery' prompt perfectly
- + Clear, bold typography with a strong glowing effect
- − Failed to include the starburst element for the price
- − Repeated the price text twice in different locations
Imagen 4.0 Fast Generate 001
- + Successfully followed all instructions including the starburst for the price
- + Better 'exploded' effect with distinct separation between ingredients
- + Dynamic composition with a nice 3/4 angle on the burger
- − The cheese has a slightly plastic or rubbery texture compared to the other model
- − Typography for 'Magic Burger' is less crisp than in the competitor's image
Verdict: FLUX.1 Kontext [pro] produces a more appetizing and visually striking image with superior photorealism, but it fails to follow the negative constraint of the starburst and repeats the price. Imagen 4.0 Fast Generate 001 provides a much more accurate 'exploded' view and follows every part of the prompt, including the specific graphic design elements requested.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent text accuracy and spelling throughout the entire menu.
- + Realistic chalk texture with convincing stroke variations and grain.
- + Natural-looking spacing and a very believable chalkboard surface.
- − The title is in print-style block letters rather than the 'elegant cursive' requested in the prompt.
- − A small typo 'faiur' appears in the footer text.
Imagen 4.0 Fast Generate 001
- + Successfully incorporated a different stylistic element for the title section.
- + Bold, legible text that matches the requested menu items.
- − Multiple spelling errors including 'Octuphus' and 'Cookes'.
- − Significant redundancy, repeating variations of the 'Brown Butter' item multiple times.
- − Text lacks the authentic dusty chalk texture, looking more like digital ink.
Verdict: FLUX.1 Kontext [pro] is the clear winner due to its superior spelling accuracy and convincing chalk texture, which perfectly captures the 'handwritten' aesthetic requested. In contrast, Imagen 4.0 Fast Generate 001 suffers from numerous typos and repeats the same menu items, resulting in a cluttered and unrealistic layout.
The Reversed Rodeo
Text-to-Image“Horse riding astronaut in space — horse on top, not vice versa. Surreal, highly detailed, cinematic.”
FLUX.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Perfectly adheres to the difficult prompt instruction of the horse being on top of the astronaut.
- + High degree of cinematic detail in the spacesuit texture and the horse's coat.
- + Successfully captures the surreal nature of the request with a creative composition.
- − The astronaut below the horse has horse hooves instead of boots.
- − A small, unnecessary third astronaut figure is riding the horse's back.
Imagen 4.0 Fast Generate 001
- + Good lighting and color palette with a vibrant nebula background.
- + Technically clean rendering of the horse and astronaut's face.
- − Completely failed the negative constraint to have the horse on top, providing the standard cliché instead.
- − Lacks the 'surreal' quality requested, looking like a typical AI space art piece.
Verdict: FLUX.1 Kontext [pro] is the clear winner as it is the only model that successfully interpreted the spatial relationship requested ('horse on top, not vice versa'), creating a truly surreal image. Imagen 4.0 Fast Generate 001 defaulted to a standard astronaut riding a horse, ignoring the specific arrangement required by the prompt.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Natural lighting and texture on the capybara's fur.
- + Accurate New York taxi exterior aesthetic in the foreground.
- − The passenger is on a two-handed phone call rather than looking down at the device as requested.
- − The capybara only has one paw visible on the steering wheel.
Imagen 4.0 Fast Generate 001
- + Excellent adherence to the 'bored' expression and phone usage of the passenger.
- + Clearer interior composition showing both the driver and the passenger in one frame.
- + Accurately places both paws on the steering wheel as requested.
- − The capybara's paws look slightly like bird talons or primate fingers rather than rodent paws.
- − The taxi cap looks more like a formal police or military hat than a standard taxi driver cap.
Verdict: Imagen 4.0 Fast Generate 001 followed the prompt instructions more closely, correctly placing both paws on the wheel and capturing the specific 'bored businesswoman looking at her phone' request. FLUX.1 Kontext [pro] has slightly better lighting and fur textures, but failed on the specific passenger interaction and the dual-paw placement.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent typography with nearly perfect spelling and an elegant gothic font.
- + High-quality textures on the pumpkin and background, creating a genuine vintage feel.
- + Sophisticated border design using spiderwebs that integrate well with the frame.
- − Includes an extra line of hallucinated text ('Your: Vorkleat: Iight & Spans') in the details section.
- − The parchment effect is darker and less distinct as a 'poster' than the other version.
Imagen 4.0 Fast Generate 001
- + Strong composition with a clear parchment paper border effect.
- + Excellent adherence to the 'twisted trees' and 'spooky border' requirements.
- + Consistent and clean illustration style suitable for a modern digital invitation.
- − Contains a spelling error in the main title ('IINVIITATION').
- − The scroll banner text is slightly garbled ('NIGHT OF FNIGHTS').
- − Text layout at the bottom feels slightly bunched together compared to the rest of the design.
Verdict: FLUX.1 Kontext [pro] produced a much more atmospheric and polished image with superior legibility, despite adding a line of nonsensical text. Imagen 4.0 Fast Generate 001 followed the 'parchment poster' layout well but suffered from significant spelling errors in both the title and the banner which makes it less usable overall.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent text rendering with a charming, stylized font that fits the cartoon theme.
- + Highly detailed PBR textures on the salmon and rice grains.
- + Solid isometric composition with soft, professional lighting.
- − The placement of the flag icon is slightly awkward, integrated into the text layout in a non-standard way.
Imagen 4.0 Fast Generate 001
- + Clean, modern typography and professional icon placement.
- + Accurate interpretation of the 'miniature 3D cartoon scene' with varied sushi types.
- + Strict adherence to the isometric perspective and diorama base request.
- − The text has a minor white outline artifact against the blue background.
- − The white border around the image creates an unnecessary frame that wasn't requested.
Verdict: FLUX.1 Kontext [pro] creates a more visually appealing 3D model with superior texture work on the food itself, making it look much more 'refined.' While Imagen 4.0 Fast Generate 001 offers a slightly better layout for the text and icons, the overall artistic quality and texture detail in FLUX.1 Kontext [pro] make it the more successful interpretation of the prompt.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent adherence to lighting descriptors like god rays and dew sparkles.
- + Accurately captured the 'playful' and 'joyful' vibe with expressive smiling faces.
- + Bright, vibrant color palette that matches the 'wholesome' sunshine prompt.
- − The anatomy of the middle two animals is slightly ambiguous, looking like cat-rabbit hybrids.
- − The puppy’s paw placement is somewhat indistinct within the flowers.
Imagen 4.0 Fast Generate 001
- + Features a distinct and anatomically correct rabbit, fox, kitten, and puppy.
- + High level of texture detail in the fur and surrounding daffodils.
- + Realistic skin/nose textures and clear eye reflections.
- − Missed the butterfly element of the prompt entirely.
- − The mood is more somber/posed rather than 'playfully chasing' or 'tumbling'.
- − The puppy does not resemble a golden retriever as requested.
Verdict: FLUX.1 Kontext [pro] successfully captured the movement, joy, and butterflies requested in the prompt, though the anatomy of the small animals is a bit stylized and blended. Imagen 4.0 Fast Generate 001 produced a more realistically rendered image with distinct species, but it failed to include the butterflies and missed the 'playful' action-oriented spirit of 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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Excellent font choice with a hand-pressed letterpress texture
- + Accurate spelling of the name including the accent over the 'E'
- + Perfect minimalist layout that works well as a versatile emblem
- − Typo in 'EEST' on the banner
- − The steam effect is a bit chunky compared to the fine lines of the cloche
Imagen 4.0 Fast Generate 001
- + Clean vector illustration with sophisticated lines
- + Correct spelling of 'EST.' on the banner
- + Nicely rendered steam following the cloche's curve
- − Contains nonsensical floating text ('AFED' and 'CARO') above the main name
- − The layout is slightly more cluttered than 'minimalist' ideally requires
Verdict: Both models followed the prompt well, but FLUX.1 Kontext [pro] captures the requested 'vintage' and 'subtle texture' aesthetic much more effectively with its letterpress-style typography. While FLUX.1 Kontext [pro] has a minor typo in 'EST.', it is more usable as a logo than Imagen 4.0, which includes several pieces of hallucinatory text that clutter the design.
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.1 Kontext [pro]
Imagen 4.0 Fast Generate 001
AI Judge Analysis
FLUX.1 Kontext [pro]
- + Clean typographic header for 'APOLLO 11'
- + Solid flat-vector illustrative style with high visual appeal
- + Good use of the requested color palette
- − Nonsensical diagram logic including Saturn rings on the Moon and Earth
- − Labels are misplaced and logically incorrect (e.g., 'Earth' pointing to a moon)
- − Failed to include specific step icons like the Saturn V
Imagen 4.0 Fast Generate 001
- + Followed instructions for specific icons like the Lunar Module and Saturn V reference
- + Excellent clean, modern vector aesthetic that feels like a professional infographic
- + Very high adherence to the requested steps and color palette
- − Several spelling errors like 'APOLO', 'VICON', and 'MOOR'
- − The layout is a bit abstract and doesn't clearly show a linear sequence from step 1 to 6
Verdict: Imagen 4.0 Fast Generate 001 is the winner despite its spelling errors because it actually followed the complex icon and step instructions, whereas FLUX.1 Kontext [pro] generated a nonsensical image putting Saturn's rings around the Earth and Moon. Imagen 4.0 achieved a much more professional 'modern vector' look that aligns with the prompt's stylistic requirements.
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