FLUX.2 [flex] Black Forest Labs vs Seedream 4.0 ByteDance

FLUX.2 [flex]

• + Excellent photographic clarity and high-resolution textures.
• + Perfect composition following all spatial instructions.
• + Very clean glass rendering with consistent refractions.

• − The blue sphere is relatively large compared to the 'small' descriptor in the prompt.

Seedream 4.0

• + Realistic lighting and shadows on the wooden table.
• + The scale of the blue sphere better matches the 'small' description.
• + Good glass transparency showing the plant behind and through it.

• − The glass cube has a mirrored base which was not requested.
• − The red book appears to have a slightly distorted or merged bottom edge where it meets the glass.

FLUX.2 [flex]

• + Excellent preservation of the car's geometry and reflections.
• + Perfectly placed the man from the second source image into the driver's seat.
• + The motion blur on the wheels and road adds a high level of realism.

• − The man's scale seems slightly small relative to the car's interior.

Seedream 4.0

• + Successfully integrated both the man and the car into the new environment.
• + Good job preserving the man's distinct clothing (scarf and plaid coat).

• − Noticeable distortion on the car's front grille and headlights.
• − Visual artifacts and smudging where the man's arm meets the car door.

FLUX.2 [flex]

• + Excellent shallow depth of field with realistic bokeh and light leakage.
• + High level of detail in skin texture and clothing materials.
• + Superior anatomy and mechanical detail on the bicycle parts.

• − The frame of the bicycle has a slightly nonsensical geometry near the man's hands.
• − Lack of clear tools or debris on the ground compared to Model B.

Seedream 4.0

• + Stronger adherence to the 'motion blur from passing cars' prompt with a clearly blurred vehicle.
• + Better candid feeling with tools scattered on the pavement.
• + Clearer reflections of the bicycle in the standing water puddles.

• − Major anatomical errors in the hands, which appear melted and distorted.
• − Lower overall sharpness and resolution, with a slightly muddy texture.
• − The spokes and wheels of the bicycle are messy and poorly defined.

FLUX.2 [flex]

• + Excellent detail on the ornate plate engravings and leather texture
• + Symmetrical and balanced composition
• + Very clear and lifelike facial features

• − Lighting feels a bit digital and flat despite the torch source
• − The scars look slightly painted on rather than integrated into the skin

Seedream 4.0

• + Natural and dramatic warm lighting that realistically reflects off the metal
• + Dynamic interpretation of bokeh sparks and depth of field
• + Gritty and organic skin texture with realistic dirt and scars

• − The braiding on the right side of the head becomes slightly muddled
• − Armor engravings are less crisp compared to Model A

FLUX.2 [flex]

• + Excellent adherence to the grid layout and modern minimalist aesthetic.
• + Comprehensive professional layout including prices, descriptions, and categorized sections.
• + Higher technical quality with clean typography and consistent lighting across food photos.

• − Text is mostly gibberish, though it maintains the correct font style and structure.
• − Some repetition in the food photos (multiple similar pizzas and steaks).

Seedream 4.0

• + Bold, legible headers for the requested sections.
• + Vibrant food photography with good color saturation.

• − Failed to create an actual menu layout, providing only large headers and photos.
• − Poor composition with awkward white space and disconnected elements.
• − Missing menu details like prices, descriptions, and a professional structure.

FLUX.2 [flex]

• + Excellent typography with clean, fiery effects and accurate price matching
• + Superior photorealistic detail on burger textures like the bun and searing on the patty
• + Well-organized composition that looks like a high-end professional advertisement

• − The 'exploded' effect is a bit vertical and static compared to a more dynamic motion blur

Seedream 4.0

• + Stronger sense of motion with spiral blur effects
• + Creative interpretation of the fiery background with visible embers and coals

• − Incorrect price displayed as €5.99 instead of the requested €6.99
• − The burger is split into two separate mini-stacks rather than one exploded unit
• − The 'starburst' for the price has a lower-quality, clip-art appearance

FLUX.2 [flex]

• + Excellent text rendering with no spelling errors.
• + The handwriting looks uniform yet maintains a natural chalk appearance.
• + Centralized composition with professionally spaced lines.

• − The 'cursive' for the title is quite basic and leans toward print.
• − The overall image looks slightly more digital than hand-drawn due to the extreme neatness.

Seedream 4.0

• + Features a very authentic, dusty chalk texture with realistic smudges and chalk dust buildup.
• + Highly convincing 'handwritten' aesthetic with natural variations in letter weight and slant.
• + Accurately follows the prompt for 'elegant cursive' in the title section.

• − The perspective makes some of the text on the right side slightly harder to read.
• − Minor spacing issues on the bottom line where words get very close to the board edge.

FLUX.2 [flex]

• + Excellent character preservation including the face, sunglasses, and the specific scarf from Image 2.
• + Matches the yellow studio background and red ottoman from Image 1 perfectly.
• + Correctly integrates the character's clothing style (black sweatshirt) while attempting the pose.

• − The pose is significantly modified and is not the 'precise action/pose from Image 1'.
• − Anatomical issues with the raised foot appearing to grow out of the ottoman rather than resting on it.

Seedream 4.0

• + Captures a more dynamic sense of movement closer to the original pose's orientation.
• + Good recreation of the yellow environment and red prop.

• − Fails the character reference significantly, blending the hair of the woman in Image 1 with components of the man in Image 2.
• − Heavy artifacts and 'uncanny' facial distortion.
• − Anatomical failure with the legs and missing the sunglasses requested from the character reference.

FLUX.2 [flex]

• + Excellent adherence to the 'horse on top' spatial instruction
• + Cinematic composition with a sense of movement and scale
• + Strong celestial background with asteroid field and galaxy details

• − The horse's front legs merge awkwardly with the astronaut's shoulders
• − Anatomical strangeness where the astronaut's human hands are holding the horse's hooves

Seedream 4.0

• + High visual clarity on the horse and astronaut textures
• + Crisp lighting and reflections on the helmet

• − Failed the primary prompt instruction of 'horse on top'
• − Standard cliché interpretation of an astronaut riding a horse
• − The astronaut's left hand is poorly rendered and disconnected from the reins

FLUX.2 [flex]

• + Excellent fur texture and realistic anatomy for the capybara's head.
• + High-quality lighting and depth of field in the city background.
• + Superior rendering of the driver's hands/paws on the steering wheel.

• − The driver's jacket and 'paws' look a bit like a human in a costume rather than a pure animal.
• − The taxi sign on the roof is partially cut off.

Seedream 4.0

• + Successfully captures the bored, mundane expression of the businesswoman.
• + Great composition that feels like a natural candid shot through a window.
• + The capybara's expression is very calm and fits the prompt well.

• − Lower image resolution and some blurring on the capybara's fur.
• − The 'hands' of the capybara are somewhat distorted and less realistic than in Model A.
• − Lighting is a bit flatter compared to the high-contrast night scene in Model A.

FLUX.2 [flex]

• + Excellent text legibility and accuracy for all requested fields
• + Clean, balanced layout that feels like a professional invitation
• + High-quality graphic elements like the ornate border and gothic font

• − The parchment texture is a bit flat compared to the requested moody night sky
• − Shadows on the pumpkin are slightly less realistic than model B

Seedream 4.0

• + Atmospheric cinematic lighting with a darker, moodier background
• + Highly detailed and realistic jack-o-lantern rendering
• + Dynamic border with 3D thorns and spiderwebs

• − The text on the small scroll banner is warped and difficult to read
• − The layout feels a bit cluttered with the thorns overlapping the parchment edges
• − The color of the main title is slightly washed out against the background

FLUX.2 [flex]

• + Excellent preservation of the original facial features and expression.
• + Seamless integration with the existing sideburns and beard.
• + The hair texture and lighting match the source environment perfectly.

• − The hairline is a bit low on the forehead, altering the facial proportions slightly.

Seedream 4.0

• + Successfully adds a thick head of hair as requested.
• + Preserves the background and clothing accurately.

• − The hair has a 'wig-like' quality and lacks a natural-looking hairline.
• − The lighting on the hair is somewhat flat compared to the rest of the image.
• − Slightly alters the shape of the face near the temples.

FLUX.2 [flex]

• + Perfect adherence to the 3D clay-like miniature cartoon aesthetic.
• + Extremely clean and bold text rendering with a well-defined flag icon.
• + Strong composition with a clear, raised diorama base.

• − The sushi models are slightly more simplified than Model B.

Seedream 4.0

• + Excellent texture work on the salmon and roe (ikura) sushi.
• + Very detailed diorama base with a wooden texture.
• + Good isometric perspective and lighting.

• − Text layout is cluttered, with the flag icon poorly aligned with the word 'SUSHI'.
• − The prompt requested the flag be below the text, but Model B placed it to the right.

FLUX.2 [flex]

• + Expertly captures all thematic elements including the news anchor desk, cartoon dogs in hockey jerseys, and hockey sticks.
• + The caricature style is consistent and intentionally artistic across the entire frame.
• + Preserves the subject's identity and denim jacket while effectively translating it into a stylized illustration.

• − The background text on the news desk and screen contains typical AI gibberish.
• − Completely changes the scene's medium from a photo to a high-gloss 2D illustration.

Seedream 4.0

• + Maintains a high degree of source preservation by using a realistic caricature style that keeps the original background and lighting.
• + Successfully integrates the anchor desk, hockey jersey, and dog into the real-world setting.
• + Maintains the selfie-style composition of the original source image.

• − Significant anatomical errors, particularly with the hand holding the phone which has an incorrect number of fingers and poor blending.
• − The hockey jersey is awkwardly cropped and stuck to the side of the desk rather than worn or displayed naturally.
• − The facial caricature is a bit unsettling due to the mix of high-resolution realism and exaggerated proportions.

FLUX.2 [flex]

• + Excellent adherence to the prompt, including all four requested animals clearly visible.
• + Very clean anatomical details and fur textures on all animals.
• + Beautiful lighting with distinct god rays and a calm, wide-angle meadow composition.

• − The animals look a bit static and posed rather than actively 'tumbling' together.
• − The kitten feels slightly small in scale compared to the bunny and fox.

Seedream 4.0

• + Captures the 'tumbling' and 'playful' aspect of the prompt much better with dynamic poses.
• + The sparkling dew effects are more pronounced and magical.
• + The fox has a vibrant, high-contrast color palette that pops.

• − The kitten is missing its back legs or they are merged awkwardly into the environment.
• − The golden retriever puppy's anatomy feels a bit squashed and less realistic than in Model A.
• − The butterfly on the left is physically touching the kitten's ear in an clipping-like manner.

FLUX.2 [flex]

• + Excellent preservation of the original poses and spatial layout.
• + Captures the Ghibli aesthetic with clean line work and watercolor textures while maintaining facial expressions.
• + Background details like the street and signs are stylized rather than removed.

• − The color palette is slightly desaturated and lacks the vibrant 'warmth' requested in the prompt.
• − The woman on the right has lost her original angry expression, looking neutral or mildly happy.

Seedream 4.0

• + Successfully applies a soft watercolor texture and warm, dreamy lighting.
• + Characters strongly resemble Ghibli's simple, rounded facial designs.
• + High artistic merit in the painting style and color blending.

• − Sacrifices almost all background detail for a generic watercolor wash.
• − The woman on the right is looking in the wrong direction, breaking the narrative focus of the original image.
• − The man's hand/pose becomes slightly muddy in the translation.

FLUX.2 [flex]

• + Excellent preservation of the woman's face and original features.
• + Highly realistic and dynamic hair movement that looks naturally windswept.
• + Excellent preservation of the dog's appearance and the background scenery.

• − The flying leaves are all the same color and look a bit like green clones.
• − The leaves lack motion blur, which makes them look static while suspended.

Seedream 4.0

• + Great sense of depth with leaves in the foreground and background.
• + Added motion blur to global elements and leaves to enhance the energetic feel.
• + The warm lighting adjustment complements the 'autumnal' feel of blowing leaves.

• − Significant loss of detail and texture in the woman's face compared to the source.
• − The hair movement is less detailed and looks slightly more 'matted' than in Model A.

FLUX.2 [flex]

• + Perfectly matches the minimalist vector emblem style requested.
• + Precise and clean typography with accurate accent mark.
• + Excellent use of the 'Est. 1720' banner with thin, elegant lines.

• − The paper texture on the background is extremely subtle, almost unnoticeable.

Seedream 4.0

• + Rich, warm color palette with effective shading on the cloche.
• + Stronger texture application on the background and logo elements.
• + Good classic typography that feels vintage.

• − The banner geometry is a bit awkward and less 'minimalist' than requested.
• − The cloche handle is slightly off-center.

FLUX.2 [flex]

• + Excellent typography and clean, modern vector layout.
• + Accurately captures the 'NASA-inspired' palette with muted tones.
• + Highly coherent iconography that matches the flat-vector style requested.

• − Missed the final 'Landing' step (it stopped at step 5 'Descent').
• − The flow of steps is a bit unconventional (top-down vertical columns).

Seedream 4.0

• + Followed all 6 steps requested in the prompt including 'Landing'.
• + Clear, linear horizontal progression that is easy to read.
• + Excellent inclusion of the crew names and 'Tranquility' as requested but partially cut off in prompt.

• − The illustration style is less consistent, with clunky lines and some AI artifacting on the icons.
• − Text rendering on the small names is slightly distorted.
• − The Saturn V rocket icon is awkwardly merged with the timeline line.