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 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]

• + 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]

• + 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]

• + 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.