Stable Diffusion 3.5 Large Stability AI vs Vidu Q2 ShengShu Technology

Stable Diffusion 3.5 Large

• + Excellent sense of realism in textures and reflections
• + Very high resolution and photographic quality

• − Failed the spatial relational logic: the cube is over the book, not the book on top of the cube
• − The plant is in the background but not clearly 'behind the cube' in a way that shows through it effectively

Vidu Q2

• + Perfect adherence to complex spatial instructions
• + Realistic lighting and shadows including the refraction through the glass
• + Correct placement of all objects (book on top, sphere inside, plant behind)

• − The glass edges are unusually thick for a standard 'glass cube'
• − The blue sphere has a slightly matte finish compared to the highlights on the glass

Stable Diffusion 3.5 Large

• + Successfully captures the light rain and atmospheric reflections on the pavement.
• + Includes a bus and car which provide a sense of scale and street atmosphere.
• + Good full-body composition showing the interaction between the man and the bike.

• − The hands and the contact point between the man and the bike are blurry and poorly defined.
• − Lacks the 'motion blur' on passing cars requested in the prompt.
• − The bicycle's anatomy is slightly simplified and warped in places.

Vidu Q2

• + Excellent close-up detail on the skin texture and used/worn metal of the bicycle.
• + Great adherence to the 'imperfect framing' and '50mm' feel with a more intimate, candid perspective.
• + The bicycle mechanics (chain, gears, frame) are rendered with high realism and correct positioning.

• − The passing car in the background is static and lacks the requested motion blur.
• − The rain is less visible compared to Model A, appearing more like 'post-rain' wetness than active falling rain.
• − The composition is very tight, cutting off much of the subject and the bike.

Stable Diffusion 3.5 Large

• + Excellent intricate engraving on the plate armor
• + Realistically textured, battle-worn skin with believable dirt and faint scuffs
• + Strong atmospheric lighting with effective shallow depth of field

• − Missed the request for beads in the hair
• − The hair texture looks slightly matted compared to the high-quality armor

Vidu Q2

• + Successfully included beads in the braided hair
• + Excellent lighting contrast and warm torchlight reflections
• + Very high level of detail on leather straps and cloth underlayers

• − The face looks a bit too clean and 'pretty' for a battle-worn paladin
• − Armor engravings are less intricate than the other model

Stable Diffusion 3.5 Large

• + Excellent photographic quality and realism in food imagery
• + Clean and professional minimalist layout that feels like a real editorial design
• + Clear grid structure as requested in the prompt

• − Text rendering is mostly gibberish despite high-quality fonts
• − Text alignment becomes slightly cluttered at the bottom of the central column

Vidu Q2

• + Good use of vibrant color accents and graphical elements
• + Logical organizational structure with distinct columns and clear prices
• + Better grouping of specific menu sections like 'Mains'

• − Lower image quality with noticeable AI artifacts and blurry textures
• − Food photos are less appetizing and have repetitive shapes
• − The layout feels more cluttered and less minimalist

Stable Diffusion 3.5 Large

• + Excellent photorealistic rendering of food textures.
• + Dynamic lighting and atmospheric bokeh effects.

• − Failed to follow any of the text integration instructions.
• − The burger is stacked rather than exploded or suspended in mid-air.

Vidu Q2

• + Perfect adherence to text instructions with correct spelling and glow effects.
• + Accurately represents the 'exploded' and 'suspended' burger components.
• + Includes the specific starburst price tag requested.

• − The price currency symbol is a stylized mashup rather than a clean euro sign.
• − Slightly less realism in the lettuce texture compared to the competitor.

Stable Diffusion 3.5 Large

• + Provides a complete environmental context with a cozy café setting.
• + Text layout is neat and visually organized on the board.

• − Failed the date prompt, rendering '2024' instead of '2026'.
• − Text is largely gibberish and does not follow the requested menu items.
• − Title contains a typo ('TODAAY').

Vidu Q2

• + Excellent adherence to the 'handwritten chalk' texture and style.
• + Followed the specific date 'APRIL 30, 2026' perfectly.
• + Attempts all specific menu items with recognizable (though misspelled) text.

• − Numerous spelling errors throughout the menu items.
• − Lacks the wider café environment, focusing only on the board.

Stable Diffusion 3.5 Large

• + Excellent cinematic lighting and atmosphere
• + High level of detail in the astronaut suit and horse texture
• + Beautiful celestial composition with a sense of motion

• − Failed the core prompt instruction of 'horse on top' of the astronaut

Vidu Q2

• + Vibrant colors and creative 'nebula' texture on the horse
• + Sharp focus and clean rendering of the characters
• + Good interpretation of the 'surreal' aesthetic

• − Failed the specific spatial instruction to place the horse on top of the astronaut
• − Prohibitive anatomical issues with the astronaut's legs passing through the horse

Stable Diffusion 3.5 Large

• + Excellent texture on the capybara's fur and whiskers
• + High resolution foreground detail with realistic lighting

• − Completely failed to include the passenger in the back seat
• − One paw is hanging in space and not on the steering wheel
• − Anatomy is slightly distorted with human-like legs emerging from the jacket

Vidu Q2

• + Perfectly adhered to the complex prompt by including both the driving capybara and the bored passenger
• + Successfully captured the requested pose with both paws on the steering wheel
• + Composition feels more like a complete scene rather than a portrait

• − The passenger's hair and face have some slight blurring/artifacts
• − The capybara's hands look more like primate hands than capybara paws

Stable Diffusion 3.5 Large

• + Strong cinematic lighting and atmosphere with the large glowing moon.
• + Highly detailed parchment texture with realistic torn edges.
• + Mostly accurate rendering of requested spooky elements like twisted trees and gravestones.

• − Completely failed to include the event details (Date, Time, Location) at the bottom.
• − The text on the scroll banner becomes illegible and garbled at the end.
• − The jack-o-lantern is off-center rather than being the 'central' element.

Vidu Q2

• + Excellent adherence to the 'central jack-o-lantern' instruction.
• + Successfully included all event details at the bottom of the poster.
• + Accurately rendered the thorny border and webs as requested.

• − Frequent spelling errors in both the title ('Intovztion') and the banner ('invieed', 'fiigts').
• − Wrong date used (2025 instead of 2026) and '7pm' is rendered as 'Tmm'.
• − The composition feels a bit more like a digital collage than a cohesive vintage poster.

Stable Diffusion 3.5 Large

• + Highly detailed textures on the fish and rice grains
• + Excellent lighting and realistic rendering of the base materials
• + Correct text spelling and inclusion of requested items like chopsticks

• − The text is placed on a sign rather than being floating/centered as requested
• − The composition feels slightly cluttered rather than minimal

Vidu Q2

• + Fits the '3D cartoon' aesthetic much better than the other model
• + Perfectly adheres to the text placement and layout instructions
• + Very clean composition with a clear diorama feel

• − The texture of the rice is less realistic and more plasticky
• − Lower level of fine detail in the sushi components

Stable Diffusion 3.5 Large

• + Excellent soft lighting with a strong morning dew aesthetic
• + High fur detail and naturalistic textures
• + Great sense of movement and dynamic action

• − Anatomical issues with the kitten, which lacks proper paws and has a deformed body
• − The kitten does not follow the 'tabby' description, appearing more like an orange-ginger mix
• − Butterfly on the rabbit's head is merged awkwardly

Vidu Q2

• + Successfully includes all animals with accurate markings, including a distinct tabby kitten
• + Better composition showing the full environment and playful interaction
• + Stronger adherence to the 'god rays' lighting request

• − The fox kit has a slightly cartoonish face and an anatomically awkward front leg
• − The second golden retriever puppy was not requested in the prompt
• − Less focus on the 'macro' ultra-detailed fur texture compared to Model A

Stable Diffusion 3.5 Large

• + Excellent typography rendering with almost perfect spelling
• + Clean vector emblem style with a professional layout
• + Strong adherence to the color palette and vintage texture request

• − Spelled 'Caffè' with an extra 'e' as 'Cafféé'
• − The steam effect is a bit chunky and less refined than the rest of the logo

Vidu Q2

• + Nice interpretation of the cloche dome with elegant steam
• + Good use of warm brown and cream tones

• − Poor typography with significant spelling errors ('Farmiin', 'Esttt', 'Fopli20')
• − Text layout is cluttered and repetitive
• − Fails to present a clean vector emblem style

Stable Diffusion 3.5 Large

• + Features a sophisticated, complex layout that looks like a technical blueprint.
• + Adheres closely to the requested navy, white, and muted red color palette.
• + Includes high-quality textures on the Earth and Moon surfaces.

• − Shows a Space Shuttle instead of the Saturn V rocket requested for the Apollo mission.
• − The layout is cluttered and does not follow the requested step-by-step logic.
• − Text is completely illegible illegible gibberish.

Vidu Q2

• + Excellent adherence to the 'flat-vector' and 'infographic' style with clean icons.
• + Follows the sequential structure of the mission steps much more clearly.
• + Provides much better text legibility, even if several words are misspelled.

• − Failed to use a Saturn V rocket icon, showing a generic small rocket instead.
• − The overall color palette is a bit washed out and lacks the deep navy requested.