FLUX.1 Kontext [dev] Black Forest Labs vs Seedream 4.5 ByteDance

FLUX.1 Kontext [dev]

• + Excellent photographic realism and texture details.
• + Logical refraction and reflections on the sphere and glass surfaces.
• + Cohesive and vibrant color palette.

• − The glass cube has an unusually thick, mirrored base that wasn't explicitly requested.
• − The sphere is quite large, pushing the definition of 'small' relative to the cube.

Seedream 4.5

• + Perfectly adheres to the scale requested with a truly 'small' blue sphere.
• + Accurately places the plant behind the glass with realistic distortion.
• + Correct lighting direction with sharp shadows.

• − The book's placement is slightly physically impossible, appearing to float or lacks a resting shadow on the glass.
• − Slightly less crisp texture on the wooden table compared to Model A.

FLUX.1 Kontext [dev]

• + Excellent anatomical detail on the man's face and hands
• + Very clean rendering of the bicycle structure
• + Beautifully rendered reflections on the wet asphalt

• − Fails to include motion blur for passing cars as requested
• − The man is posing with/riding the bike rather than repairing it
• − The composition feels a bit too balanced and staged for a 'candid' prompt

Seedream 4.5

• + Captures the 'repairing' action and 'candid' feel perfectly
• + Includes dynamic motion blur from passing cars as requested
• + Excellent use of shallow depth of field and 'imperfect' street photography framing

• − The man's hands are slightly muddled/distorted upon close inspection
• − Artificial-looking rain droplets on the raincoat that don't match the environment rain density

FLUX.1 Kontext [dev]

• + Excellent metallic engraving details
• + Strong, cinematic dramatic lighting
• + Good interpretation of battle-worn skin via small scars

• − Missed the request for hair braided with beads
• − Leather straps and cloth layers are less visible compared to armor
• − Slightly more artificial skin texture

Seedream 4.5

• + Perfect adherence to specific details like braided hair with beads
• + Very realistic skin texture with visible dirt and faint scars
• + Excellent depth of field with prominent bokeh sparks and leather/cloth textures

• − The torch flame in the foreground is a bit distracting
• − Upper hair braids look slightly repetitive

FLUX.1 Kontext [dev]

• + Excellent high-resolution food photography that looks appetizing.
• + Dynamic grid layout that feels modern and professional.
• + Very clean, stark white background as requested.

• − Text is mostly gibberish with several character glitches.
• − The layout is a bit cluttered with redundant text blocks.

Seedream 4.5

• + Perfect adherence to all requested sections (Appetizers, Pizza, Mains).
• + Clear use of vibrant color-coded accents for different menu categories.
• + Text is much more legible and formatted like a real menu with prices.

• − The 'grid' is a simple vertical list rather than a tilled photo grid.
• − Food photos have a slightly lower fidelity/artificial look compared to Model A.

FLUX.1 Kontext [dev]

• + Excellent typography rendering with clean, professional-looking fonts.
• + High-contrast colors and sharp, photorealistic burger textures.
• + Bold and clear secondary text that is easy to read.

• − Failed to create an 'exploded' view; the burger is fully assembled.
• − The starburst for the price is a flat graphic rather than an integrated fiery effect.
• − Typography has a minor spelling error in 'ONLY' (rendered as 'LNHLY').

Seedream 4.5

• + Successfully captured the 'exploded' motion with ingredients flying outwards.
• + Highly creative fiery typography that matches the prompt's aesthetic perfectly.
• + Dynamic starburst that looks integrated into the scene's lighting and embers.

• − The 'LIMITED TIME ONLY' text is slightly less crisp compared to the main title.
• − One ingredient (the cucumber/pickle slice) looks slightly detached from the rest of the realism.

FLUX.1 Kontext [dev]

• + Excellent chalk texture on the 'TODAY SPECIALS' title.
• + Good framing of the chalkboard.

• − Numerous spelling errors including 'Mashroom', 'Risoktso', and 'Octpus'.
• − Failed to render the date correctly with garbled characters for 'APRIL'.
• − Repeated text and symbols randomly in lines.

Seedream 4.5

• + Near-perfect spelling across the entire menu including the complex items.
• + Excellent adherence to stylistic requests like chalk dust, texture, and cursive title.
• + Rich, atmospheric background showing a cozy café setting.

• − Redundant line for the first item repeating the price.
• − Slightly inconsistent chalk weight between the top and bottom text.

FLUX.1 Kontext [dev]

• + Successfully followed the specific role-reversal instruction of the horse being on top/riding the astronaut.
• + Maintains a clean, high-resolution subject with sharp details in the face and spacesuit.
• + Distinct surrealist composition that stands out as unique.

• − The horse's position is a bit ambiguous, appearing more alongside or floating behind the astronaut rather than physically 'riding' him.
• − The background is somewhat sparse compared to the cinematic prompt.

Seedream 4.5

• + Beautiful cinematic lighting and vibrant nebular background.
• + Excellent horse anatomy and dynamic posing.
• + High level of detail in the textures of the horse's coat and spacesuit.

• − Completely failed the negative constraint/role-reversal instruction by placing the astronaut on top of the horse.
• − Adheres to a common trope rather than the specific prompt request.

FLUX.1 Kontext [dev]

• + Excellent texture on the capybara's fur and the jacket fabric.
• + Realistic lighting and shadows within the car interior.
• + Successfully captures the specific bored expression of the passenger.

• − The capybara only has one paw on the steering wheel, failing the 'both front paws' instruction.
• − The capybara's face is slightly stylized, leaning towards a marmot or groundhog appearance.

Seedream 4.5

• + Adheres perfectly to the prompt by having both front paws on the steering wheel.
• + The capybara facial anatomy is highly accurate and life-like.
• + The composition through the windshield provides a better sense of a New York street scene.

• − The 'TAXI' text on the hat is a bit generic/flat compared to a real patch.
• − Slightly less 'professional' looking jacket compared to Model A.

FLUX.1 Kontext [dev]

• + Includes the requested thorn border around the entire frame
• + Matches the 'vintage poster' flat graphic aesthetic well
• + Correctly captures the central glowing jack-o-lantern and bats

• − Text rendering is very poor with several misspellings and jumbled characters
• − Background lacks the 'moody night sky' requested, appearing as solid black
• − Composition feels cramped and lacks realistic cinematic lighting

Seedream 4.5

• + Excellent text rendering with no spelling errors in any of the three sections
• + Highly successful cinematic lighting and moody night sky atmosphere
• + Strong visual quality with realistic textures on the jack-o-lantern and trees

• − Does not include the requested 'scrolled banner' for the specific invite text, using a flat banner instead
• − The 'border' is limited to corner elements rather than a full frame border

FLUX.1 Kontext [dev]

• + Successfully adds a thick head of hair with high density
• + Preserves the overall composition and background elements

• − Significantly alters the person's facial structure, making him look like a different person
• − Changes the style of the glasses and smooths the skin texture, losing the original's rugged detail
• − The hair texture looks slightly artificial and overly groomed

Seedream 4.5

• + Excellent preservation of original facial features, skin texture, and wrinkles
• + Adds a natural-looking hairline and hair texture that matches the man's age
• + Maintains original lighting and glasses perfectly

• − The hair isn't quite as 'full and thick' as requested, appearing slightly recessed

FLUX.1 Kontext [dev]

• + Excellent typography with clean, bold font rendering
• + Smooth, minimalist aesthetic that follows the cartoon prompt well
• + Centered composition with perfectly balanced negative space

• − The flag icon is abstract and does not represent the Japanese flag
• − Text colors are slightly mismatched with traditional Japanese themes

Seedream 4.5

• + Accurate rendering of the Japanese flag
• + Higher level of detail in the 'realistic PBR' sushi textures and rice grains
• + Better adherence to the isometric diorama base requirement with the layered platform

• − The text placement is slightly crowded at the top
• − The depth of field blur is a bit aggressive for a clean isometric scene

FLUX.1 Kontext [dev]

• + Strongly adopts a classic comic/caricature aesthetic.
• + Includes the TV anchor profession via a screen and a dog in the scene.
• + Preserves the subject's outfit (denim shirt and black top) and basic hair color.

• − Completely misses the 'hockey' requirement.
• − The face only vaguely resembles the source image compared to the other model.
• − Contains random, nonsensical text elements.

Seedream 4.5

• + Successfully incorporates all prompt elements, including the hockey stick, gloves, and puck.
• + Excellent likeness preservation of the source subject's facial features despite the caricature proportions.
• + High visual quality with a clear 'bobblehead' caricature style that feels more modern and polished.

• − The transition from the enlarged head to the neck is slightly uncanny and lacks an outline.
• − The desk setup feels a bit crowded.

FLUX.1 Kontext [dev]

• + Natural lighting and depth of field
• + Consistent movement and action in the poses

• − Failed to include the fox and the bunny
• − Included two cats instead of the requested animals

Seedream 4.5

• + Perfect adherence to the prompt including all four distinct animals
• + Exceptional use of 'god rays' and dew sparkles
• + Highly expressive eyes and fur textures

• − Slightly crowded composition
• − Physics artifacts on the fox's front paw

FLUX.1 Kontext [dev]

• + Excellent preservation of the source image's layout and character poses
• + Clean, high-resolution line work and coloring

• − The result looks more like generic modern anime than the specific Studio Ghibli style requested
• − The lighting and background are quite flat and lack the requested 'painterly' feel

Seedream 4.5

• + Perfectly captures the Studio Ghibli aesthetic with watercolor textures and soft pastel tones
• + Effectively translates the background into a dreamy, hand-painted landscape while maintaining the scene's recognizability
• + Captures the iconic Ghibli eye shapes and facial expressions

• − Minor distortion in the proportions of the foreground woman's arms

FLUX.1 Kontext [dev]

• + Excellent source preservation, maintaining the exact face and outfit of the original subject
• + Subtle and natural wind effect on the hair
• + Maintains the original lighting and background details perfectly

• − The added leaves are very small and sparse, barely visible against the background
• − The edit is almost too subtle to satisfy the 'energetic and lively' instruction

Seedream 4.5

• + Stronger visual representation of the prompt with numerous flying leaves
• + Higher energy feel with more dramatic hair movement
• + Dynamic lighting and motion blur added to the foreground and background

• − Failed to preserve the original subject's facial features and body proportions
• − Significant changes to the background bridge and foliage compared to the source image
• − Generated a new image from scratch rather than performing a true edit

FLUX.1 Kontext [dev]

• + Excellent typography rendering with perfect alignment
• + Clean minimalist aesthetic suitable for a modern vector logo
• + Accurately follows the color palette requested

• − Failed to include the requested ribbon/banner for the 'Est. 1720' text
• − The cloche dome illustration is very abstract and looks more like a building or crown

Seedream 4.5

• + Successfully included all prompt elements including the banner and steam
• + Superior vintage illustration style with cross-hatching detail
• + Good use of subtle paper-like background texture

• − Typography has slight kerning and font weight inconsistencies
• − The cloche handle is slightly off-center

FLUX.1 Kontext [dev]

• + Captures the navy and muted red color palette well
• + Icons have a consistent hand-drawn vector feel

• − Significant spelling errors ('APOLO', 'TRANGULIITY', 'DESCNT')
• − Garbled and illegible secondary text
• − Iconography is abstract and does not clearly depict the Saturn V or Lunar Module

Seedream 4.5

• + Excellent adherence to the requested steps and corresponding icons
• + Clear, legible, and correctly spelled text throughout the graphic
• + Highly professional layout with a logical left-to-right timeline

• − The descent icon (step 5) is a generic satellite rather than a descending Lunar Module
• − The background stars are somewhat simplistic dots