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

FLUX.2 [flex]

• + Perfect prompt adherence for all spatial relationships.
• + Realistic soft window lighting and depth of field.
• + Clean rendering of the glass cube and the objects within it.

• − The blue sphere is quite large relative to the cube, pushing the definition of 'small'.

Seedream 4.5

• + Strong sunlight effects and caustics on the wooden table.
• + Tangible textures on the book cover and wood grain.

• − The blue object is heart-shaped or distorted rather than a sphere.
• − Perspective issues where the cube appears to be a solid block rather than a hollow container.
• − The plant is placed inside/behind the glass in a way that creates optical confusion.

FLUX.2 [flex]

• + Excellent full preservation of the source car's exterior design and lighting.
• + Convincingly integrated the man from the second source image into the driver's seat.
• + Dynamic motion blur on the road and wheels creates a sense of action.

Seedream 4.5

• + High fidelity in preserving the man's specific clothing, including the plaid coat, scarf, and cargo pants.
• + Captures a more intimate angle that shows the interior details clearly.

• − Major structural failure with the car door opening outwards into the road while 'driving'.
• − The car's proportions and perspective are warped compared to the source image.

FLUX.2 [flex]

• + Excellent skin textures and clothing details.
• + Natural-looking bokeh and lighting from background traffic.
• + High level of realism in the environmental wetness and reflections.

• − The bicycle frame geometry is non-functional, with the seat tube missing and the chain floating.
• − The subject is not actively using a tool, just touching the frame.

Seedream 4.5

• + Stronger adherence to the 'motion blur' request with visible light trails.
• + Dynamic interaction with a wrench tool, making the 'repairing' action more clear.
• + Great rain effects and wet pavement reflections.

• − The bicycle chain is physically impossible, passing through the frame and rear rack.
• − The wrench is floating/merging into the man's hand.
• − Lower resolution feel compared to model A.

FLUX.2 [flex]

• + Excellent intricate engraving on the plate armor
• + Great depiction of the cloth underlayer and leather textures
• + Strong symmetry and direct eye contact for a powerful portrait

• − The scars look a bit like surface paint rather than depth-filled wounds
• − The hair beads are a bit simple and lack the metallic realism of the armor

Seedream 4.5

• + Exceptional skin texture and realistic, gritty sub-surface scars
• + Very cinematic lighting and superior shallow depth of field
• + High level of detail on the braided hair and realistic bead placement

• − The armor engraving is slightly less sharp than Model A
• − The torch in the bottom left corner is a bit blown out and distracting

FLUX.2 [flex]

• + Excellent grid layout with clear categorization
• + High typographic clarity and hierarchy
• + Clean, professional aesthetic suitable for a real menu

• − The text content is largely gibberish/placeholder characters
• − Repeated pizza images in the grid

Seedream 4.5

• + Good color-coded association between sections and images
• + High quality food photography
• + Clean sans-serif fonts

• − Failed the 'grid' requirement by using a single-column list
• − Prices are nonsensical for casual dining (e.g., $99 for 'Manu')
• − Redundant text labels (e.g., repeating the word 'Pizza' multiple times)

FLUX.2 [flex]

• + Excellent typography with a professional fiery texture.
• + Highly detailed food textures, especially the condensation on the bun and the sear on the patty.
• + Perfect adherence to the starburst and price requirements.

• − The 'exploded' effect is a bit vertical and static compared to Model B.

Seedream 4.5

• + Dynamic sense of motion with motion-blurred ingredients flying outward.
• + Integrates the fiery background elements like charcoal more effectively into the scene.
• + The typography feels more artistic and well-integrated into the flame effect.

• − The price starburst is slightly less crisp than Model A.
• − A stray cucumber/pickle slice appears which wasn't explicitly requested.

FLUX.2 [flex]

• + Excellent chalk texture with visible smudges and residue
• + Highly consistent lettering style throughout the board
• + Perfect spelling and spacing for all requested menu items

• − The '2026' text leans slightly towards a digital font appearance compared to the rest of the board

Seedream 4.5

• + Authentic chalk-on-blackboard aesthetic with realistic dust and grain
• + Lettering has a hand-drawn feel with natural variations in letter size
• + Very clear and legible text

• − Repeating the price and dish name for the first item (Truffle Mushroom Risotto - $24 Risotto - $24)
• − Slightly less elegant cursive than requested for the title

FLUX.2 [flex]

• + Excellent character preservation of the face, sunglasses, and scarf.
• + Correctly matched the yellow background and red ottoman from the pose reference.
• + High-quality skin texture and facial rendering.

• − Failed to match the specific 'arched back' body position of the pose reference, instead placing the character in a crouched-forward stance.
• − The right leg/knee position is anatomically clunky and doesn't match Image 1.

Seedream 4.5

• + Successfully captured the specific leaning torso angle and arm extension from the pose reference.
• + Excellent character consistency including facial features and clothing details.
• + Balanced composition that mimics the verticality of the original pose.

• − The fingers on the hand pointing upward are slightly deformed.
• − Missing the specific brand text 'THE RA' from the character's shirt, replacing it with illegible text.

FLUX.2 [flex]

• + Excellent adherence to the 'horse on top' spatial instruction
• + High level of detail in the horse's musculature and the astronaut's suit
• + Dynamic and vibrant cinematic composition with clear depth

• − The posing of the horse's front legs on the astronaut's shoulders is slightly awkward
• − Small anatomical oddity with the horse's rear right leg blending into the tail

Seedream 4.5

• + Beautiful lighting on the astronaut's gold visor
• + Classic, clean cinematic aesthetic
• + Good color transitions in the background nebula

• − Failed the primary spatial instruction, showing the astronaut on top
• − Noticeable anatomical errors, specifically the astronaut having three legs/feet visible
• − Lower resolution and sharpness compared to the competitor

FLUX.2 [flex]

• + Excellent texture on the capybara's fur and the leather/fabric of the interior
• + Superior composition with a cinematic side-view perspective
• + Highly photorealistic lighting and bokeh effects in the background

• − The capybara's hands look slightly more human than animal paws
• − The interior of the car feels slightly modern compared to a classic yellow cab

Seedream 4.5

• + Perfect front-on perspective that captures both characters clearly
• + Accurate depiction of a capybara's anatomy and paw structure
• + Strong adherence to the 'bored expression' prompt for the passenger

• − Lower overall resolution/sharpness compared to Model A
• − The capybara's cap looks a bit like a basic clip-art overlay
• − Noticeable artifacts around the paws on the steering wheel

FLUX.2 [flex]

• + Excellent typography with a cohesive gothic font choice
• + Complex and highly detailed decorative border with thorns and skulls
• + High contrast lighting on the jack-o-lantern

• − The 'parchment' effect looks like it's resting on a white background rather than being a full poster
• − The jack-o-lantern lacks some realistic texture

Seedream 4.5

• + Atmospheric cinematic lighting with a foggy deep-night sky
• + Good integration of the twisted trees into the background
• + Realistic pumpkin textures and glows

• − The font choice is a standard serif and lacks the 'elegant gothic' style requested
• − The border is sparse and consists of mismatched barbed wire and floating webs rather than a cohesive spooky border
• − Missing the parchment paper background requested in the prompt

FLUX.2 [flex]

• + Excellent preservation of the source image pixels
• + Texture of the hair realistically matches the existing beard
• + Perfectly maintains lighting and skin details

• − The hairline is a bit high and stiff looking

Seedream 4.5

• + Natural, rounded hairline and head shape
• + Realistic hair texture and volume
• + Excellent blending between the new hair and the existing sideburns/beard

• − Slightly alters the original ear shape and adds dark shading to the top of the ear
• − Minor loss of original skin texture on the forehead compared to the source

FLUX.2 [flex]

• + Perfect text rendering and layout as requested.
• + Clean, soft-refined textures that match the 3D clay/cartoon aesthetic exactly.
• + High level of clarity with a very professional, minimalist composition.

• − The 45-degree isometric angle is slightly flattened by the lens choice.
• − The white plate blends a bit much with the raised base.

Seedream 4.5

• + Excellent miniature diorama feel with textured base material.
• + Good sushi grain and fish texture rendering.
• + Solid adherence to the isometric perspective.

• − The flag icon is poorly integrated and placed to the side rather than centered.
• − The 'JAPAN' text has a slight artifact/notch in the 'J'.
• − Visible depth of field blurring on the edges of the base reduces the 'ultra-clean' look requested.

FLUX.2 [flex]

• + Perfectly adopts a caricature art style with exaggerated features and vibrant colors.
• + Includes multiple dogs in hockey jerseys, effectively combining all prompt elements.
• + Sets an immersive TV news studio scene that clearly communicates the profession.

• − The facial likeness to the source person is slightly diminished by the cartoon style.
• − Text on the desk and background screens contains typical AI gibberish.

Seedream 4.5

• + Maintains a very strong facial resemblance to the woman in the source image.
• + Uses a bobblehead-style caricature approach which is clever and humorous.
• + High fidelity in rendering hockey equipment and the dog.

• − The composition feels slightly disjointed with items appearing to float or sit awkwardly on the desk.
• − The background remains a domestic living room rather than a professional TV studio set.

FLUX.2 [flex]

• + Excellent preservation of the source image's composition and poses.
• + Successful application of textured, hand-painted paper effects.
• + Correctly maintains the subtle facial expressions and eye lines of the original meme.

• − The color palette is a bit washed out and lacks the vibrant greens often associated with Ghibli.
• − The woman on the right has an out-of-character happy expression instead of being offended.

Seedream 4.5

• + Stronger Studio Ghibli character design aesthetic with better line work.
• + Vibrant and accurate use of watercolor-style textures in the background.
• + Preserves the 'distracted' narrative and the offended expression of the girlfriend better.

• − Minor anatomical distortion in the neck area of the woman in red.
• − Slightly less faithful to the original man's facial structure compared to model a.

FLUX.2 [flex]

• + Excellent preservation of the subject's face and clothing from the original image
• + Subtle but effective wind-blown effect on the hair that looks natural
• + Added movement to the dog's tail and posture

• − The green leaves look like static stickers rather than dynamic flying debris
• − The leaves are mostly clustered at the bottom, lacking a full-scene wind effect

Seedream 4.5

• + Stronger sense of motion with more prominent leaves
• + Dynamic hair effect that captures the energetic feel requested
• + Good preservation of the original scene composition

• − Noticeable distortion of the dog's face compared to the original
• − The subject's face has been slightly altered/re-colored
• − Motion blur on the leaves is a bit inconsistent

FLUX.2 [flex]

• + Perfect text rendering for both name and date
• + Clean minimalist lines suitable for a modern-vintage logo
• + Excellent vector-style simplicity

• − The steam is very faint and thin
• − Subtle texture on background is almost non-existent

Seedream 4.5

• + Rich vintage aesthetic with good use of hatching and shading
• + Better texture on the background paper
• + Strong steam illustration and more detailed banner

• − The 'a' in 'Caffè' is stylized in a way that looks slightly like an icon/blob
• − The banner construction is slightly more cluttered

FLUX.2 [flex]

• + Excellent typography and layout consistent with modern poster design.
• + Includes specific technical subtext like 'TLI burn' and 'Parking orbit'.
• + Strictly follows the requested 'navy, white, muted red' NASA color palette.

• − Misses the final 'Landing' step icon requested in the prompt.
• − Iconography layout is a bit scattered and lacks a clear sequential flow.

Seedream 4.5

• + Perfectly follows the numbered sequence of all 6 requested steps.
• + Very clean, horizontal infographic timeline layout that is easy to read.
• + Adds creative relevant details like the crew names and the Tranquility landing site.

• − The 'Descent' icon is a satellite rather than the requested lunar module descending.
• − Minor text alignment issues with the 'NASA' header and the timeline circles.