FLUX.2 [dev] Turbo vs Seedream 4.5
Head-to-head across 12 challenges
FLUX.2 [dev] Turbo
22.2%
win rate
Ties
22.2%
Seedream 4.5
55.6%
win rate
Challenge Results
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
FLUX.2 [dev] Turbo
- + Perfect adherence to all spatial instructions and objects.
- + Highly realistic glass textures, including dust and reflections.
- + Beautiful lighting and clear background depth.
Seedream 4.5
- + Crisp lighting effects on the table surface.
- + Clean, minimalist composition.
- − Physical logic failure as the blue sphere intersects through the solid glass wall.
- − The glass object has a triangular/hexagonal base rather than being a cube.
- − The background plant is very blurry and difficult to distinguish.
Verdict: FLUX.2 [dev] Turbo followed the prompt perfectly, creating a highly realistic scene with complex glass transparency and correct object placement. Seedream 4.5 failed on basic physics, showing the blue sphere clipping through the glass wall, and failed to render a cube shape correctly.
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
FLUX.2 [dev] Turbo
- + Excellent adherence to the 'imperfect framing' prompt with a higher, more candid camera angle.
- + Superior rendering of mechanical bike details, including the chain, gears, and kickstand.
- + Very realistic textures on the wet pavement and the man's aging hands and skin.
- − The rain effect is subtle, appearing more like a few streaks rather than a consistent light rain.
- − The front wheel of the bicycle appears to be sinking into the pavement.
Seedream 4.5
- + Effective use of motion blur from passing cars to create a sense of movement.
- + Strong bokeh and lighting from car headlights created a more 'cinematic' mood.
- + Good depiction of light rain falling through the scene.
- − Major anatomical/mechanical error where the bicycle chain is passing through the man's hand.
- − The bike's frame and proportions are distorted, with the front and rear halves not connecting logically.
- − The skin texture and clothing appear slightly more 'plastic' compared to Model A.
Verdict: FLUX.2 [dev] Turbo produced a far more coherent and realistic image, particularly in the complex mechanical details of the bicycle and the texture of the man's skin. Seedream 4.5 captured the requested cinematic motion blur and rain atmosphere better, but failed significantly on physical logic, showing a chain passing through the subject's hand and a disjointed bike frame.
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
FLUX.2 [dev] Turbo
- + Excellent adherence to the 'grid' layout requested in the prompt.
- + Professional typography with clear headers, subtext, and price alignment.
- + Dynamic and modern use of color accents and geometric shapes.
- − The content of the 'Mains' and 'Appetizers' sections is mostly just more pizza images.
- − The pricing is highly unrealistic (e.g., $260 for a pizza).
Seedream 4.5
- + Displays a logical variety of food photos corresponding to the categories (Appetizers, Pizza, Steak/Mains).
- + Clean, minimalist layout with high-contrast colored borders.
- + Legible sans-serif headers and consistent pricing list.
- − The layout is a simple vertical list rather than the requested 'grid'.
- − Repetitive text in the Mains section (using 'Restaurant' as an item name).
Verdict: FLUX.2 [dev] Turbo followed the layout requirements much better, creating a sophisticated grid design that looks like a real professional menu, despite the absurd pricing and repetitive pizza photos. Seedream 4.5 provided better thematic consistency between the photos and their headers (Appetizers vs. Mains), but failed to implement a grid layout and produced a much simpler design.
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
FLUX.2 [dev] Turbo
- + Perfectly unique handwriting with authentic chalk texture and slight slant as requested.
- + Excellent background detail with realistic cafe lighting and blurred depth of field.
- + No repetition of text elements, creating a cleaner layout.
- − Slight formatting error on the first item where the dollar sign is duplicated on two lines.
- − The handwriting for the bottom-most text feels a bit more uniform and computer-like than the rest.
Seedream 4.5
- + Very readable and clean chalk-style lettering with a convincing dusty texture.
- + Effective use of negative space and framing within the wooden border.
- + Completed the 'Brown Butter' text item logically despite the prompt being cut off.
- − Repeat error where the item 'Risotto - $24' is rendered twice on different lines.
- − The handwriting looks slightly more like a digital font designed to look like chalk rather than freehand writing.
Verdict: Both models followed the prompt instructions very well, effectively capturing the chalk texture and specific menu items. FLUX.2 [dev] Turbo produced a more authentic 'handwritten' feel with natural variations, whereas Seedream 4.5 had a significant repetition error in the text which detracted from the realism.
Pose & Character Mashup
Editing“Use Image 1 as the exact pose reference and Image 2 as the character reference. Recreate the person/character from Image 2 in the exact dynamic pose and body position from Image 1. Keep the exact face, hair, clothing style/details, and expression from Image 2. Match the lighting and environment of Image 1. The final image must show the character from Image 2 performing the precise action/pose from Image 1 with perfect anatomy and natural integration.”
AI Judge Analysis
FLUX.2 [dev] Turbo
- + Successfully replicates the complex scarf, clothing text, and black color palette from Image 2.
- + Captures the yellow background and red ottoman from Image 1 effectively.
- + Maintains the head-tilt orientation requested by the pose reference.
- − Fails to include the sunglasses from the character reference.
- − Gives the character long, flowing hair that does not match the short hair in Image 2.
- − The leg positioning is anatomically messy with a kneeling leg and a floating third foot.
Seedream 4.5
- + Excellent character preservation including the sunglasses, hair style, facial hair, and clothing.
- + The body pose is a much more accurate recreation of the dynamic leg crossing from Image 1.
- + High visual quality with natural lighting and shadows on the yellow background.
- − The right hand (extended upwards) lacks the specific finger positioning of a dancer seen in the source.
- − Minor text distortion on the sweatshirt compared to the original garment.
Verdict: Seedream 4.5 is the clear winner as it successfully integrated the character's key features—namely the sunglasses and short hair—which FLUX.2 [dev] Turbo replaced with long hair. Seedream 4.5 also handled the difficult leg-crossing pose from Image 1 with much greater anatomical accuracy, whereas FLUX.2 created a confusing hybrid of kneeling and standing.
The Reversed Rodeo
Text-to-Image“Horse riding astronaut in space — horse on top, not vice versa. Surreal, highly detailed, cinematic.”
AI Judge Analysis
FLUX.2 [dev] Turbo
- + Excellent anatomical details on the horse and space suit
- + Cinematic lighting with a realistic planetary backdrop
- + High resolution and clarity
- − Failed the core prompt instruction of 'horse on top'
Seedream 4.5
- + Successfully placed the astronaut underneath the horse as requested
- + Vibrant, surreal nebular background
- + Solid attempt at a complex spatial arrangement
- − Anatomical issues where the astronaut's body seems to merge or clip into the horse
- − The astronaut's legs and pelvis are awkwardly positioned
Verdict: While FLUX.2 [dev] Turbo produced a much higher quality image visually, it completely ignored the specific spatial instruction for the horse to be on top. Seedream 4.5 followed the prompt's difficult surrealist requirement, placing the astronaut underneath the horse, though it suffered from some anatomical distortion in the process.
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
FLUX.2 [dev] Turbo
- + Excellent photorealism with sharp textures on the fur and clothing
- + Accurate depiction of a bored/normal human expression
- + Complex lighting with reflections on the car exterior
- − The passenger is sitting in the front passenger seat rather than the back seat
- − The capybara's hands look slightly more like human/primate hands than capybara paws
Seedream 4.5
- + Correctly places the businesswoman in the back seat as requested
- + Composition feels more immersive from the perspective of looking through the front windshield
- + Clear and legible 'TAXI' text on the hat
- − The capybara's front paws on the wheel have an unnatural, slightly blurred appearance
- − Fewer fine details in the background city lights compared to Model A
Verdict: Both models followed the prompt well, but Model B ultimately adhered better to the spatial requirements by placing the woman in the back seat. While FLUX.2 [dev] Turbo produced a higher fidelity image with superior lighting and texture, it failed at the specific positioning of the passenger, making the interaction feel less like a 'ride' and more like a carpool.
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
FLUX.2 [dev] Turbo
- + Perfect text rendering for all requested details and fonts.
- + Very detailed and intricate border with realistic webs and thorns.
- + Excellent balance and centered composition that fits the 'poster' aesthetic.
- − The overall tone is slightly more muted and less 'cinematic' than it could be.
Seedream 4.5
- + Higher contrast and more cinematic lighting with a vibrant blue night sky.
- + Accurate text placement on the scroll banner.
- + Good use of atmospheric elements like the crescent moon and mist.
- − The border features barbed wire which was not requested and feels less 'vintage gothic' than thorns.
- − The layout at the bottom is slightly cluttered with text overlapping the scenery unevenly.
Verdict: FLUX.2 [dev] Turbo followed the prompt most accurately, particularly with the specific request for a thorn border and precise text rendering. While Seedream 4.5 offers more dramatic lighting and a punchier color palette, it introduced barbed wire instead of thorns and had a less organized layout for the event details. FLUX.2 [dev] Turbo is the winner for its superior composition and adherence to the 'vintage gothic' stylistic constraints.
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
FLUX.2 [dev] Turbo
- + Excellent text rendering with clean, professional-looking typography.
- + Highly realistic textures on the salmon and rice grains.
- + Perfectly balanced composition on a clean wooden diorama base.
- − The garnish flower on top of the sushi looks a bit more like butter than traditional garnish.
Seedream 4.5
- + Good variety of sushi types including rolls and nigiri.
- + Strong miniature/diorama feel with rounded base corners.
- + Accurate placement of the flag icon next to the text.
- − Significant blurring on the edges of the diorama base due to shallow depth of field.
- − Texture on the base looks slightly rough/noisy compared to the requested 'soft refined textures'.
- − Text layout is slightly less integrated than in Model A.
Verdict: FLUX.2 [dev] Turbo produced a much cleaner and more professional image with superior texture work and typography. While Seedream 4.5 captured the 'miniature' feel well, its excessive use of depth-of-field blur and coarser textures made it less visually appealing than the sharp, high-clarity output of FLUX.2.
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 unavailable for this challenge.
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
FLUX.2 [dev] Turbo
- + Perfect adherence to all text requirements including the grave accent on 'Caffè'.
- + Excellent vintage texture on both the logo and the background paper.
- + Strong vector emblem composition with a well-integrated banner.
- − The steam lines are slightly disconnected from the cloche.
Seedream 4.5
- + Clean, simple vector style that fits a minimalist aesthetic.
- + Good use of color hierarchy with warm browns and creams.
- + Accurate text rendering and placement.
- − The 'E' in 'Caffè' is missing the requested grave accent.
- − The typography feels a bit default and less 'vintage' than requested.
- − Lacks the subtle background texture requested in the prompt.
Verdict: FLUX.2 [dev] Turbo followed the prompt much more closely, successfully including the specific accent mark in 'Caffè' and applying a convincing vintage texture to the background and emblem. Seedream 4.5 produced a clean logo but failed to provide the requested texture and missed the specific accent mark on the text.
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
FLUX.2 [dev] Turbo
- + Excellent text rendering of astronaut names and phase titles
- + High level of detail in the Illustrations of the Saturn V and Lunar Module
- + Successfully includes the requested NASA 'worm' and 'meatball' logos
- − Confusing layout with redundant icons (two Earths, two Moons) and disorganized flow
- − Literal interpretation of the prompt text 'Saturn Vicon' as one word
- − Background is a bit noisy for a 'clean' flat-vector infographic style
Seedream 4.5
- + Very clean, professional infographic layout with a logical linear timeline
- + Follows the flat-vector style aesthetic perfectly with crisp lines and consistent iconography
- + Accurate numbering of the six requested steps
- − The 'Descent' icon is a generic satellite rather than the lunar module
- − Missed the red accent in the NASA-inspired palette for the text/icons
- − Minor text spacing issues in the astronaut names
Verdict: Seedream 4.5 is the winner because it successfully interprets the request for an 'infographic' with a clear, linear flow and clean flat-vector aesthetics. While FLUX.2 [dev] Turbo has impressive detail in its individual illustrations, the overall layout is cluttered and confusing, making it less effective as a functional piece of information design.
FLUX.2 [dev] Turbo
Distilled version of Black Forest Labs' FLUX.2 [dev] outperforming it at a cheaper price. Developed by fal.ai.
Seedream 4.5
ByteDance's latest image generation model unifying text-to-image and image editing in a single architecture, with improved text rendering and 30-40% faster generation than v4.0