Seedream 4.0 ByteDance vs Wan 2.5 (Preview) Alibaba

Seedream 4.0

• + Excellent adherence to the 'soft window light' lighting request.
• + Realistic glass reflections on the table and within the cube.
• + Clean, minimalist composition.

• − The glass enclosure is rectangular rather than a true cube.
• − The blue sphere is quite small relative to the space.

Wan 2.5 (Preview)

• + Perfect cube geometry for the glass container.
• + Highly detailed textures on the book cover and the plant leaves.
• + Better proportion between the sphere and the cube.

• − The sphere appears to be floating slightly above the bottom surface.
• − Unnecessary dust/particle effects in the air distract from the clarity of the scene.

Seedream 4.0

• + Excellent preservation of the man's identity, clothing, and hairstyle.
• + Seamless integration of the car and driver into a cinematic coastline environment.
• + Maintains the car's specific model details with high accuracy.

• − The driver's hands on the steering wheel look slightly merged/distorted.
• − The lighting on the man's face is a bit dark compared to the bright sunlit background.

Wan 2.5 (Preview)

• + Successfully creates a sunny California vibe with palm trees and clear blue water.
• + Dynamic motion blur on the road and wheels enhances the sense of driving.

• − Poor identity preservation; the man is barely visible and his features are lost.
• − The car's door handle and side panel details are slightly simplified compared to the source.

Seedream 4.0

• + Excellent execution of car motion blur as requested
• + Detailed, realistic reflections on the wet pavement
• + Strong candid feel with the specified imperfect framing

• − The bike's mechanical structure is a bit warped, especially the chain guard and handlebars

Wan 2.5 (Preview)

• + Superb skin texture and facial detail on the subject
• + Very crisp rendering of the bicycle hardware and tools
• + Atmospheric lighting with nice bokeh from distant headlights

• − Failed to include the requested motion blur for passing cars
• − The background feel is slightly more 'polished' than 'candid street photo'

Seedream 4.0

• + Excellent depiction of warm, cinematic torchlight lighting
• + Very realistic skin texture with subtle scarring
• + Highly detailed engraving on the plate armor that looks physically embossed

• − The leather straps look slightly blurry and lack some material definition
• − Braid transition into the hair at the top of the head is slightly messy

Wan 2.5 (Preview)

• + Exceptional texture on the leather straps and frayed cloth underlayer
• + Distinct beads in the braided hair as requested
• + Sharp focus on the face and intricate chainmail details

• − The lighting on the armor feels a bit flatter compared to the other model
• − The bokeh sparks in the background look like distinct orange circles rather than natural flying embers

Seedream 4.0

• + Clear, readable text for category headers
• + High-quality, appetizing individual food photography

• − Lacks any actual menu content like descriptions or prices
• − Empty space in the center makes the layout feel unfinished

Wan 2.5 (Preview)

• + Successfully creates a full menu layout with descriptions and sub-headers
• + Strong adherence to the 'grid' request with a clean, professional aesthetic
• + Cohesive visual style across all food items

• − Contains significant spelling errors in both titles and body text
• − Food photos are somewhat repetitive in styling and composition

Seedream 4.0

• + Excellent chalk texture including realistic dust and smudges.
• + Full prompt adherence including the completion of the 'Brown Butter' item.
• + Handwriting feels organic and varied rather than font-like.

• − The slant of the text is slightly inconsistent across lines.

Wan 2.5 (Preview)

• + Very clean and legible text rendering.
• + Good composition within the frame of the chalkboard.

• − Missed the 'Herbs' part of the octopus menu item.
• − Repeating the price '$9' on two separate lines for the cookies.
• − Text looks a bit too much like a digital font rather than natural chalk handwriting.

Seedream 4.0

• + Excellent texture on the astronaut suit and horse mane
• + Great lighting integration with the nebula reflection on the helmet
• + Dynamic composition with the rearing pose

• − Failed the specific spatial instruction for the horse to be on top of the astronaut
• − Anatomical issues with the horse's front legs appearing distorted

Wan 2.5 (Preview)

• + High visual clarity and vibrant cinematic colors
• + Good sense of motion and scale with the planet in the background
• + Precise rendering of the astronaut's gear

• − Failed the negative constraint/spatial instruction for the horse to be on top
• − The horse's back legs lack logical physical connection to the ground/atmosphere

Seedream 4.0

• + Maintains the vitiligo pattern and unique hair from Image 1 correctly.
• + Includes the specific shoes and accessories like the watch and ring.
• + Adapts the clothing to a new pose while keeping the background consistent.

• − Significantly alters the facial features of the person from Image 1, adding a mustache and changing the nose/jawline.
• − Changes the gaze of the person to look down instead of forward.

Wan 2.5 (Preview)

• + High visual quality with clean textures and realistic lighting integration.
• + Correctly applies the clothing, sunglasses, and jewelry from Image 2.

• − Fails the source preservation requirement by completely removing the vitiligo and the unique hair of the person in Image 1.
• − Replaces the person's face with the face from Image 2 instead of keeping the base person unchanged.

Seedream 4.0

• + Natural composition looking through the side window
• + Accurately depicts the bored expression of the businesswoman
• + Excellent lighting integration between the city lights and the taxi interior

• − Text on the cap is nonsensical
• − Capybara paws look a bit too much like human hands

Wan 2.5 (Preview)

• + Symmetry in composition is very striking
• + High-quality fur texture and realistic rain details on the taxi
• + A more detailed and authentic-looking driver's cap

• − View of the backseat person is slightly obstructed and less natural
• − The capybara's paws are somewhat small and awkwardly positioned on the wheel

Seedream 4.0

• + Excellent moody atmosphere and cinematic lighting consistent with the 'vintage' prompt.
• + Text is mostly integrated well into the scene.
• + The thistly thorn border feels more organic and integrated with the background.

• − The text in the small scroll banner is garbled and barely legible.
• − The bottom text has minor alignment issues and font inconsistencies.

Wan 2.5 (Preview)

• + Superior text rendering with perfect legibility and zero spelling errors.
• + The scroll banner looks very polished and physically realistic.
• + Higher resolution detail on the jack-o-lantern and background elements.

• − The composition feels slightly more like a modern graphic design than a vintage parchment poster.
• − The transition between the blue night sky circle and the parchment is very sharp and less 'painterly'.

Seedream 4.0

• + Excellent preservation of the original facial features
• + Consistent lighting across the new hair and existing face

• − The hair has a stiff, fuzzy texture that looks like a wig
• − The hairline is very blocky and lacks natural transitions

Wan 2.5 (Preview)

• + Realistic hair texture with natural flow and highlights
• + Integration with sideburns and temples is much more seamless
• + Hairline looks convincing and non-linear

• − Slightly altered the shape of the nose and the squint of the eyes compared to the original

Seedream 4.0

• + Excellent variety of sushi types following the 'miniature scene' request.
• + Perfect text alignment and placement of the Japan flag icon.
• + Higher level of detail in the food textures, such as the rice grains and fish gloss.

• − The 'JAPAN' text is simple black rather than stylized integrated 3D text.
• − The background is slightly darker than requested.

Wan 2.5 (Preview)

• + Beautiful 3D typography that fits the 'cartoon' and 'PBR' aesthetic well.
• + Very clean, minimal diorama base as requested by the prompt.
• + Soft, pleasing lighting and smooth textures.

• − Lower variety of sushi, showing only one piece instead of a 'scene'.
• − The perspective is more eye-level than the requested 45° top-down isometric view.

Seedream 4.0

• + Excellent preservation of the subject's facial features while applying caricature proportions.
• + Retains the original background and clothing style for better consistency.
• + Creative integration of the profession through a news desk and microphone.

• − The anatomy of the right hand holding the phone is slightly mangled.
• − The hockey integration is a bit subtler on the desk panel compared to the other themes.

Wan 2.5 (Preview)

• + Strong cartoon illustration style that fits the 'exaggerated' part of the prompt.
• + Clear and various nods to all elements: hockey on the screen, sticks, and jerseys.
• + Symmetrical and balanced composition.

• − Loses the specific likeness of the subject, appearing more like a generic clipart character.
• − Completely ignores the source image background and lighting.
• − The hand holding the microphone is poorly rendered with merged fingers.

Seedream 4.0

• + Natural and dynamic posing of the animals tumbling and playing.
• + Beautiful rendering of backlighting and translucent fur edges.
• + Excellent integration of the creatures within the environment's depth of field.

• − The fox's anatomy, specifically its front legs and paws, appears slightly distorted.
• − A high amount of bokeh particles can look a bit cluttered in the upper half.

Wan 2.5 (Preview)

• + Clearer full-body rendering of all four animals from a front-facing perspective.
• + Vibrant color palette and sharp detail on the flower foreground.
• + Clean and bright lighting that matches the 'joyful' vibe of the prompt.

• − The fox has unsettling, overly human-like or artificial glowing blue eyes.
• − The floating water droplets look like stickers rather than realistic dew.
• − The animals don't appear to be interacting with each other as much as just standing in a row.

Seedream 4.0

• + Successfully captures a hand-painted watercolor texture similar to 'The Tale of the Princess Kaguya'.
• + Executes the soft pastel color palette and dreamy background perfectly.
• + Preserves the iconic composition and poses with high fidelity.

• − The faces are a bit simplified, losing some of the specific expression nuances from the original meme.

Wan 2.5 (Preview)

• + Accurately translates the original facial expressions into a classic 90s/00s Ghibli character design style.
• + Preserves background details from the original photo while stylizing them.
• + Creatively adds falling leaves to enhance the 'nostalgic' mood.

• − The lighting is a bit flat compared to the requested 'gentle, dreamy' atmosphere.
• − The texture feels more like digital cell-shading than the requested 'hand-painted' texture.

Seedream 4.0

• + Excellent depiction of wind-blown hair that looks natural
• + Added autumnal leaves that match the colors of the background foliage
• + Preserved the identity of the person and dog very accurately

• − Introduction of a lens flare in the top right that wasn't requested
• − The leaves have a slightly blurry, low-resolution appearance compared to the subjects

Wan 2.5 (Preview)

• + Successfully applied the hair motion effect while maintaining high sharpness
• + Preserved the original lighting and colors of the source image perfectly
• + Maintained the facial structure and dog details without distortion

• − The added leaves look like flat, green 2D stickers that don't match the environment's lighting or color
• − Less 'dynamic' feel in the leaves compared to Model A

Seedream 4.0

• + Excellent typography and spelling of 'Caffè Florian'
• + Clean and balanced composition following use of white space
• + Good vector-style shading on the cloche

• − The steam effect is a bit stiff compared to the rest of the logo

Wan 2.5 (Preview)

• + Very cohesive emblem layout within the banner
• + Elegant steam illustration
• + High-quality vintage paper texture effect

• − The accents on the 'e' in 'Caffè' are messy and inconsistent
• − The small 'Est. 1720' text is slightly off-center

Seedream 4.0

• + Strong flat-vector aesthetic that matches the requested style perfectly.
• + Good spatial layout separating the sequence of events from the landing surface.
• + Includes all six requested steps clearly numbered.

• − Contains spelling errors like 'Surfcce' and 'Translunar' spelled as 'TransLunar'.
• − The rocket for the descent stage looks more like a modern capsule/shuttle than a Lunar Module.

Wan 2.5 (Preview)

• + Excellent iconography for the Saturn V and the Lunar Module.
• + Clean, professional typography without spelling errors.
• + Sophisticated use of the NASA-inspired color palette.

• − Step numbering is missing, making the sequence harder to follow.
• − The 'Translunar' step includes a second large moon which is confusing in a flat-vector infographic.
• − Translunar trajectory line intersects other elements haphazardly.