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

FLUX.1 Krea [dev]

• + Excellent photorealistic lighting and shallow depth of field.
• + Accurately places a blue sphere inside the cube.
• + Highly realistic glass reflections and refraction.

• − The sphere is quite large compared to the requested 'small' sphere.
• − The book is slightly too small for the top of the cube.

Seedream 4.5

• + Perfectly captures the scale of a 'small' blue sphere relative to the cube.
• + The plant visibility through the glass is very clear and well-executed.
• + Great adherence to the layout instructions.

• − The glass cube has some slight perspective distortion on the vertical edges.
• − The lighting is a bit harsher than the requested 'soft' window light.

FLUX.1 Krea [dev]

• + Excellent handling of the rainy atmosphere and wet pavement reflections.
• + Realistic character design that feels candid and natural.
• + Good composition with a clear 50mm look.

• − The man is standing with his hands on the bike rather than actively repairing it.
• − Lack of significant motion blur on the passing cars as requested.

Seedream 4.5

• + Accurately depicts the 'repairing' action from the prompt.
• + Perfect execution of motion blur from a passing car in the background.
• + Strong adherence to the imperfect framing and street photography aesthetic.

• − The skin texture on the hands appears slightly muddy or overly wrinkled compared to real life.
• − Minor lighting inconsistency on the rain droplets on his coat.

FLUX.1 Krea [dev]

• + Excellent symmetry and centered composition
• + Intricate engraving on the armor plates
• + Strong adherence to the 'beaded hair' prompt requirement

• − Lighting feels a bit flat on the face compared to the metal
• − The 'blood' or dirt on the face looks somewhat like wine stains rather than realistic battle grime

Seedream 4.5

• + Outstanding skin texture with realistic scars, dirt, and pores
• + Superb use of warm torchlight and dynamic color range
• + Highly detailed rendering of the leather straps and multi-layered fabric

• − The braids are a bit cluttered behind the ear
• − Asymmetrical composition might be seen as less 'portrait-like' for some users

FLUX.1 Krea [dev]

• + Includes a realistic 2x4 grid layout for food photos
• + Sophisticated professional aesthetic suitable for a real restaurant
• + Includes more detailed typographic elements like item descriptions and prices

• − The text is largely gibberish/unreadable under headings
• − Repeats the 'Appetizers' section heading twice

Seedream 4.5

• + Extremely clean and simple minimalist layout
• + Text is highly legible and follows the sections requested exactly
• + Vibrant color-coded borders provide clear visual organization

• − Generic design feels a bit like a digital presentation slide rather than a printed menu
• − The food photography is slightly less varied than the grid in Model A

FLUX.1 Krea [dev]

• + Excellent photorealistic rendering of the burger textures.
• + Clean, professional typography and layout reminiscent of a high-end food ad.
• + Effective use of atmospheric fire and glowing embers.

• − Failed to place the price in a starburst as requested.
• − The burger components are stacked rather than 'exploded' or separated in mid-air.
• − Contains small AI-generated Gibbs/halftone-like text at the bottom.

Seedream 4.5

• + Followed the 'fire effect' text instruction perfectly for the main title.
• + Successfully included the price inside a glowing starburst.
• + Better sense of motion with blurred, flying ingredients (lettuce, tomato, pickles).

• − The burger is mostly assembled rather than fully 'exploded' with all layers visible.
• − Minor lighting inconsistency on the bottom bun relative to the fire.

FLUX.1 Krea [dev]

• + Features a clean, centered composition with a realistic wooden frame.
• + Excellent legibility on the title and date.
• + Good chalk dust texture on the surface of the board.

• − Significant text errors including 'Gruffle Mushroom' and 'Grilled Butter & Chrcuations'.
• − The font style looks too clean and digital, lacking the requested 'handwritten' natural variation.
• − Unnecessary extra lines of text that deviate from the specific prompt list.

Seedream 4.5

• + Matches the 'handwritten' requirement much better with variable letter sizes and a natural slant.
• + Accurately renders almost all text from the prompt with high fidelity.
• + Captures the 'cozy café' atmosphere in the background with bokeh lighting effects.

• − Minor spacing issue where 'Risotto' repeats a price line.
• − Small chalk smudges/artifacts in the empty space of the board.

FLUX.1 Krea [dev]

• + Excellent anatomical detail on the horse
• + High cinematic lighting with realistic Earth backdrop
• + Crisp resolution and clear mechanical textures

• − Failed the spatial relationship prompt; shows the astronaut on top
• − The horse's middle section is fused with a mechanical box

Seedream 4.5

• + Beautiful background colors and nebulous effects
• + Good sense of motion and movement through the stars

• − Failed the spatial relationship prompt; shows the astronaut on top
• − The horse has five legs visible due to some blending with the astronaut's leg
• − The reins are physically impossible, passing through the horse's neck

FLUX.1 Krea [dev]

• + Excellent fur texture on the capybara
• + High photographic clarity and cinematic lighting

• − Failed to include a single businessman; instead added two women, one of whom is in the driver's seat alongside the capybara
• − The taxi is a two-door coupe which is unrealistic for a NYC cab

Seedream 4.5

• + Perfect adherence to the prompt character count and positioning
• + Captures the bored expression of the passenger very well
• + Better steering wheel placement with paws clearly gripping it

• − The capybara's face is slightly less detailed compared to Model A
• − The lighting on the taxi roof sign is missing or cut off

FLUX.1 Krea [dev]

• + Excellent gothic illustration style with a vintage parchment feel
• + Highly detailed and decorative border with webs and thorns
• + Consistent artistic aesthetic throughout the composition

• − Several major spelling errors and typos in the text including 'Pasty Halloween' and 'nights Tright'
• − The layout of the text is slightly cluttered with overlapping elements

Seedream 4.5

• + Perfect text rendering with zero spelling errors for all requested details
• + Superior cinematic lighting and realistic textures on the jack-o-lantern
• + Clean, professional layout that functions well as a readable invitation

• − Lacks a complete border as requested, only featuring thorns at the bottom and webs at the top corners
• − The background tree silhouettes are less 'twisted' and artistic compared to the other model

FLUX.1 Krea [dev]

• + Excellent typography and layout consistent with the requested 'cartoon' and 'clean' aesthetic.
• + Very clean shadow work and 3D modeling on the diorama base.
• + High-clarity textures that perfectly match the PBR (Physically Based Rendering) request.

• − The flag is placed physically on the plate as a 3D object rather than as a graphic icon near the text.
• − Minimalist approach only includes one piece of nigiri.

Seedream 4.5

• + Includes a variety of sushi types (nigiri and maki) which adds visual interest.
• + Great depth of field and soft lighting that gives a high-quality miniature feel.
• + Adheres well to the diorama and garnish instructions.

• − Text is slightly off-center and the flag icon is poorly integrated with the pole.
• − The black text feel a bit harsh compared to the 'gentle' lighting and soft textures of the scene.
• − The diorama base texture is a bit grainy/noisy compared to the requested 'refined' textures.

FLUX.1 Krea [dev]

• + Excellent character rendering with very clean fur textures
• + Natural-looking butterflies and lighting effects
• + High clarity and professionalism in the animal portraits

• − Missed the baby bunny completely, substituting it with a second kitten
• − The animals feel more like they are posing than 'tumbling together'

Seedream 4.5

• + Includes all requested animals: puppy, kitten, bunny, and fox kit
• + Dynamic movement and 'tumbling' energy that matches the prompt
• + Captures the 'god rays' and 'dew sparkles' atmospheric details effectively

• − The fox kit has over-exaggerated, slightly cartoony eyes compared to the other animals
• − Some minor blending issues where the kitten's paws meet the grass

FLUX.1 Krea [dev]

• + Excellent vintage illustrative style with detailed engraving-like lines.
• + Sophisticated use of texture on the background and within the emblem.
• + Includes all requested elements like the steam, cloche, and banner.

• − Serious spelling errors in the main name ('FLANOR’IN' instead of 'Florian').
• − The banner is empty, with the date moved to a separate frame below it.

Seedream 4.5

• + Perfect text rendering with the correct spelling and accent for 'Caffè Florian'.
• + Adheres strictly to the layout instructions, placing 'Est. 1720' inside the banner.
• + Clean, minimalist vector aesthetic that works well as a modern-retro logo.

• − The 'steam' illustration is a bit generic/simple compared to the rest of the logo.
• − Slightly less 'vintage' character in the line work compared to the other model.

FLUX.1 Krea [dev]

• + Successfully uses the requested navy and white palette.
• + Captures a playful flat-vector aesthetic.

• − Fails to follow the specific 1-6 numerical steps logic correctly.
• − Icons for Saturn V and Lunar Module are replaced with generic astronauts and planets with rings.
• − Text is largely garbled and unreadable.

Seedream 4.5

• + Excellent adherence to all 6 specific steps of the mission.
• + Includes accurate iconography for the Saturn V, Lunar Module, and Moon.
• + Legible text and logical infographic flow that follows a timeline layout.

• − Icon for 'Descent' (step 5) looks more like a generic satellite than a descending lunar module.
• − The composition is a bit bottom-heavy with a lot of white space at the base.