FLUX.2 [dev] Black Forest Labs vs Seedream 4.5 ByteDance

FLUX.2 [dev]

• + Perfect adherence to all spatial instructions and object placements.
• + Highly realistic glass rendering with natural refractions of the background plant.
• + Excellent lighting that feels soft and atmospheric as requested.

Seedream 4.5

• + Good color accuracy for the requested elements.
• + Interesting light and shadow interplay on the table surface.

• − Failed to place the blue sphere inside the cube (it is stuck in the glass wall).
• − The cube geometry is physically impossible and distorted.
• − The book appears to be floating or poorly aligned with the top of the cube.

FLUX.2 [dev]

• + Excellent integration of the man and car with natural-looking motion blur on the background.
• + Strong source preservation of the man's facial features and distinctive hairstyle.
• + Accurate lighting and shadows on the interior of the car matching the outdoor setting.

• − The car's dashboard and steering wheel look a bit simplified compared to the source Rolls Royce.

Seedream 4.5

• + Successfully includes the man's entire outfit, including the specific cargo pants and boots from the source.
• + High fidelity in capturing the California coastline background with realistic cliffs and waves.
• + Good preservation of the car's exterior door design and badging.

• − The car door is wide open while driving, which is physically impossible and nonsensical.
• − The man's feet are floating strangely in the footwell area.

FLUX.2 [dev]

• + Excellent depiction of motion blur with passing cars
• + High realism in skin textures and clothing folds
• + Successfully captures the requested 'candid' and 'imperfect framing' look

• − The structural logic of the bicycle is chaotic and nonsensical near the bottom
• − The subject's hands are mangled and blending into the bike bars

Seedream 4.5

• + Clear action of using a tool to repair the bike chain
• + Strong cinematic lighting and atmosphere with better color grading
• + More coherent bicycle structure compared to the other model

• − The wrench is floating/not properly gripped by the hand
• − The rain effect looks like static vertical lines rather than realistic droplets

FLUX.2 [dev]

• + Excellent depiction of multiple colorful beads within the braids
• + Clear visibility of the ornate engravings on the plate armor
• + Dynamic lighting with the torch clearly visible in the frame

• − The scars look a bit like surface paint rather than depth-filled skin tissue
• − The background bokeh sparks are a bit uniform and lack depth

Seedream 4.5

• + Exceptional skin texture with realistic pores and believable scarring
• + Superior depth of field and color grading for a cinematic look
• + Extremely detailed leather straps and cloth textures as requested

• − Missing the prominent beads within the braids compared to the other model
• − The torch itself is partially cropped out of the bottom left

FLUX.2 [dev]

• + Excellent realization of the vibrant accents and grid-based layout.
• + Includes complex typographic features like descriptions and varying price formats.
• + Captures the professional look of a multi-page casual dining brochure.

• − Text is largely gibberish strings.
• − Visual noise in several food items reduces clarity.

Seedream 4.5

• + Near-perfect legibility for category headers like 'Appetizers' and 'Pizza'.
• + Superior photo quality with realistic textures and lighting.
• + Extremely clean and minimalist aesthetic that matches the prompt well.

• − Layout is a bit repetitive/simplistic compared to a real menu.
• − Some smaller text elements still contain spelling errors like 'Appetizters'.

FLUX.2 [dev]

• + Excellent typography with clean, glowing neon effects.
• + Highly organized exploded view clearly showing all layers.
• + Perfect adherence to the starburst and pricing request.

• − The lighting on the burger feels a bit flat and clinical compared to the background.
• − Less 'motion' in the ingredients compared to the second version.

Seedream 4.5

• + Superior sense of motion with blurred flying ingredients and flying embers.
• + Better dynamic lighting where the fire light interacts more naturally with the food.
• + The 'MAGIC BURGER' text has a more creative, integrated flame effect.

• − The burger is not fully 'exploded' as requested, with many layers still touching or overlapping.
• − The text 'LIMITED TIME ONLY' is slightly less legible than in the first version.

FLUX.2 [dev]

• + Excellent chalk texture with realistic smudges and strokes
• + Accurate spelling for all requested menu items
• + Consistent slant and natural letter variations

• − The layout for the octopus item is a bit disjointed
• − Bottom text style is slightly different from the main menu items

Seedream 4.5

• + Very clean and balanced composition within a wooden frame
• + Smooth, legible handwriting across the entire board
• + Successfully completed the 'Brown Butter' item string

• − Repeated 'Risotto - $24' twice in the list
• − Slightly more 'digital font' look compared to Model A's organic chalk feel

FLUX.2 [dev]

• + Successfully carries over specific textures like the scarf and patterns from the character reference.

• − Severely fails anatomically, resulting in two heads and distorted limbs.
• − Does not match the lean or orientation of the original pose correctly.
• − Mangled fingers and floating body parts.

Seedream 4.5

• + Successfully replicates the dynamic pose while maintaining logical anatomy.
• + Excellent transition of character details (sunglasses, scarf, black tracksuit) onto the new pose.
• + High visual quality with realistic lighting and integration into the environment.

• − The head angle is slightly less tilted than the original pose in Image 1.

FLUX.2 [dev]

• + Excellent photorealistic texture on the NASA-style spacesuit
• + Dynamic horse anatomy and flowing mane effect
• + High resolution with cinematic lighting and a clear background planet

• − Completely failed the semantic challenge by putting the human on top
• − The horse's front left hoof has a slightly distorted structure

Seedream 4.5

• + Successfully interpreted the difficult surrealist command 'horse on top'
• + Creative and unique composition that challenges typical AI tropes
• + Dreamy, vibrant colors in the nebula background

• − Lower realism in the horse's head and neck texture
• − The astronaut's hands and salute gesture are somewhat muddy and less defined
• − Lower overall sharpness compared to the competitor

FLUX.2 [dev]

• + Successfully integrated the sunglasses and the plaid scarf pattern.
• + Included extra jewelry and gold chains that give an elaborate feel.

• − Failed the primary instruction to keep the person's face and hair from Image 1, instead merging features from both images.
• − Altered the person's skin patterns significantly, losing the unique vitiligo from the source.

Seedream 4.5

• + Successfully preserved the exact face, hair, and sand textures of the person from Image 1.
• + Accurately transferred the coat, scarf, watch, and ring from Image 2 while adapting them to the source pose.

• − The transition between the open shirt and the skin has a slight masking artifact where the skin pattern appears pasted.
• − Missed the sunglasses from Image 2.

FLUX.2 [dev]

• + Excellent fur texture and lighting on the capybara.
• + Successfully captures the bored, indifferent expression of the human passenger.
• + The 'T' logo on the hat is a clever, stylistic nod to NYC taxis.

• − The capybara's hands are anatomically strange and look more like human-monkey hybrids.
• − The composition is a bit tight, cutting off some of the passenger's face.

Seedream 4.5

• + Perfect adherence to the requirement of both paws on the steering wheel.
• + Clear, explicitly legible 'TAXI' text on the hat.
• + Stronger composition that clearly shows both the driver and the passenger in their respective rows.

• − The passenger's phone screen light doesn't interact realistically with her face.
• − Minor artifacts on the capybara's paws where they meet the wheel.

FLUX.2 [dev]

• + Excellent adherence to all text requirements with perfect spelling.
• + Sophisticated thorn and spiderweb border that frames the illustration well.
• + Strong 'vintage gothic' aesthetic with a cohesive parchment paper texture.

• − The jack-o-lantern is quite dark, which may affect visibility in a print context.

Seedream 4.5

• + Spooky atmospheric lighting with a glowing jack-o-lantern that pops.
• + Clean, readable typography for the primary invitation text.
• + Good implementation of the requested twisted trees and bats.

• − Missed the request for a full border of webs and thorns, placing them only in the corners.
• − The scroll banner is slightly less integrated into the 'parchment' style compared to Model A.

FLUX.2 [dev]

• + Excellent preservation of the original source image elements
• + Realistic hair texture and lighting integration
• + Dramatic and creative interpretation of 'full, thick head of hair'

• − The hair choice (afro) may not be the most likely 'natural' match for the subject's existing beard texture and ethnicity

Seedream 4.5

• + Natural-looking hairstyle that fits the subject's existing features perfectly
• + Seamless blending with the original forehead and face
• + Accurate implementation of the requested thickness and hairline

• − None notable

FLUX.2 [dev]

• + Excellent layout alignment with clean, centered text
• + Refined PBR materials with very realistic food textures
• + Perfectly followed the diorama base and solid background instructions

• − The white text for 'SUSHI' is slightly less legible against the light blue than black would be

Seedream 4.5

• + Strong 3D miniature aesthetic
• + Good use of bold typography for both words
• + Nice material differentiation on the base

• − The 'JAPAN' text is slightly off-center and clipped near the top edge
• − The diorama base has a grainy texture that looks less 'refined' than requested
• − Text layout is less organized compared to the vertical stack requested

FLUX.2 [dev]

• + Successfully incorporates all elements including hockey rink background, dogs in jerseys, and a news desk.
• + High artistic merit with a classic hand-drawn caricature style.
• + Excellent use of humor and exaggeration for the character faces.

• − The facial likeness to the original subject is significantly weaker than the competitor.
• − Contains gibberish text on the desk and artifacts like a floating camera operator.

Seedream 4.5

• + Maintains an exceptional facial likeness to the source person in a caricature style.
• + Preserves the original clothing (denim shirt) and background elements like the couch and wall art.
• + Items like the hockey stick and gloves are rendered with high realism.

• − Fails to place the character in a TV show anchor setting, opting for a desk in a living room instead.
• − The overall composition is less 'humorous' and 'exaggerated' than Model A.

FLUX.2 [dev]

• + Excellent character likeness to original photo
• + Beautiful painterly texture and warm, nostalgic lighting
• + Matches the 'dreamy background' requirement with a lush flower field

• − Art style leans more towards modern manhua/webtoon than classic Ghibli
• − The background change from a city street to a field is a significant departure from source preservation

Seedream 4.5

• + Perfectly captures the Studio Ghibli 'Kiki's Delivery Service' or 'Ocean Waves' aesthetic
• + Maintains the street background and layout of the original meme accurately
• + Hand-painted watercolor textures are very authentic to the request

• − Character faces lose some of the specific likeness to the original actors in favor of the style
• − The man's expression is slightly more neutral/curious than the 'distracted' pout in the source

FLUX.2 [dev]

• + Excellent source preservation, maintaining the original face, clothing, and background perfectly.
• + Accurately applies motion to the hair while keeping the subject's identity intact.
• + Leaves are integrated naturally into the existing scene depth.

• − The wind effect on the hair is slightly symmetrical and less organic than B.

Seedream 4.5

• + Successfully adds dynamic hair motion and flying leaves as requested.
• + Creates a broad sense of movement across the entire frame.

• − Fails to preserve the source image; the woman's face, body proportions, and clothing details have changed significantly.
• − The dog's features and the leash handle have been altered from the original.
• − Introduces noticeable lighting changes that deviate from the source.

FLUX.2 [dev]

• + Excellent woodcut-style texture and vintage feel.
• + Strong composition with high-quality ribbon integration.
• + Accurate and clear text rendering including the accent on 'Caffè'.

• − The Cloche is slightly less detailed than Model B's version.

Seedream 4.5

• + Elegant typography that follows the curve of the emblem.
• + Nice use of hatching for shading on the cloche dome.
• + Accurate text and banner placement.

• − The 'a' in Florian uses a different font style than the rest of the word.
• − The texture is slightly less pronounced than requested in the 'subtle texture' prompt.

FLUX.2 [dev]

• + Includes more detailed illustrations for each step of the mission.
• + Creative inclusion of the crew names in the top right header.
• + Matches the requested navy blue background color perfectly.

• − Text is highly garbled with many spelling errors and redundant labels.
• − The layout is a disorganized grid rather than a logical sequence.
• − Iconography style is inconsistent between steps.

Seedream 4.5

• + Perfect adherence to the requested layout with a logical 1-6 timeline.
• + Excellent text rendering with no spelling mistakes and clean typography.
• + Consistent flat-vector iconography that aligns with the professional infographic prompt.

• − The descent icon shows a generic satellite rather than a lunar module.
• − The composition has a large amount of white space at the bottom.