FLUX.1 [dev] Black Forest Labs vs GPT Image 1.5 OpenAI

FLUX.1 [dev]

• + Excellent photorealism and texture on the leather book cover
• + Physically plausible lighting and high-quality refractions
• + Deep color depth and professional bokeh effect

• − The glass object is more of a thick-walled frame than a simple hollow cube
• − The sphere appears to be floating rather than resting on the surface

GPT Image 1.5

• + Perfect adherence to the geometry of a glass cube
• + The blue sphere is correctly resting on the bottom surface of the cube
• + Clear visibility of the plant through the glass

• − Slightly lower image resolution and graininess in the background
• − The book edges look a bit more synthetic compared to Model A

FLUX.1 [dev]

• + Excellent shallow depth of field and bokeh
• + Accurate 50mm lens perspective
• + Convincing cinematic light rain effects

• − The man is holding the handlebars rather than repairing the bike
• − The bike lacks a kickstand or support, making its standing position unrealistic

GPT Image 1.5

• + Stronger narrative adherence with the man actually crouching to repair the mechanical parts
• + Includes a tool tray and rag for added realism
• + Excellent water droplets and surface texture on the bike and pavement

• − Motion blur on the passing car is more of a static blur rather than capturing a sense of speed
• − The composition is a bit tighter than specified for 'imperfect framing'

FLUX.1 [dev]

• + Exceptional eye realism and facial lighting
• + Very clean, high-resolution aesthetic
• + Beautiful bokeh effect on the background sparks

• − Missed the 'battle-worn' and 'scarred' descriptors, appearing too clean
• − Hair beads are absent
• − Armor is relatively plain with minimal engraving

GPT Image 1.5

• + Excellent adherence to the 'battle-worn' and 'scars' prompt elements
• + Highly detailed engraving on the plate armor
• + Successfully included hair beads and complex texture on leather and cloth

• − Image has a slightly over-sharpened, high-contrast digital look
• − Armor engravings look somewhat messy/incoherent on close inspection

FLUX.1 [dev]

• + Excellent minimalist graphic design with elegant curves
• + Very clean professional layout
• + Strong font hierarchy and use of negative space

• − Lacks the requested grid layout for photos
• − Most text is illegible placeholder gibberish
• − Missing a distinct Pizza category section

GPT Image 1.5

• + Perfect adherence to the grid layout requirement
• + Exceptional text legibility and realistic menu content
• + Fully includes all three requested categories (Appetizers, Pizza, Mains)

• − Layout feels slightly more crowded compared to the 'minimalist' prompt
• − Colorful header accents are bit simplistic compared to Model A

FLUX.1 [dev]

• + Clean layout with well-defined product separation
• + Accurate photorealistic textures on the burger components
• + Excellent formatting of the price and secondary text

• − Failed to include the primary title 'MAGIC BURGER'
• − Background lacks the 'fiery' intensity requested, appearing more like small flames
• − Missing the starburst for the price

GPT Image 1.5

• + Successfully integrated all requested text with the correct fiery glowing effect
• + Captured a high sense of motion and dynamic energy
• + Features the required starburst for the price and a dramatic fiery background

• − The composition is slightly cluttered with many small debris particles
• − The burger bun on top looks a bit too wet/drippy compared to a standard ad

FLUX.1 [dev]

• + Excellent text legibility and accuracy of the specific menu items.
• + Good variety in lettering styles between the title and the body.

• − The text looks more like a digital font overlay than real chalk strokes.
• − The 'handwriting' is too clean and uniform, lacking the requested natural variations and chalk texture.

GPT Image 1.5

• + Superb chalk texture with realistic smudging and dusting on the board.
• + Flawless adherence to the 'handwritten' request with natural variations in slant and character width.
• + Correctly followed the cursive requirement for the title header.

• − The text is slightly harder to read due to the textured realism.
• − Wait for it—not necessarily a con, but the board is less 'centered' than Model A.

FLUX.1 [dev]

• + Successfully captures a surreal, dreamlike atmosphere with soft lighting
• + Clean minimalist composition allows the subject to stand out
• + Anatomically smooth rendering of the horse and suit

• − The horse's hind legs and hooves are anatomically deformed and messy
• − Failed the logic check: the prompt requested the horse riding the astronaut (horse on top)

GPT Image 1.5

• + High level of detailed texture in the space suit and Lunar Lander
• + Dynamic action with realistic dust/particle effects
• + Cinematic lighting and rich background details

• − Failed the logic check: interpreted the prompt as the standard astronaut riding a horse
• − The scale of Saturn and Earth in the background is visually cluttered

FLUX.1 [dev]

• + Excellent image clarity and high-resolution textures.
• + Good lighting and cinematic atmosphere.

• − Composition error: the passenger is sitting in the front seat instead of the back seat.
• − The capybara's paws are not placed logically on the steering wheel.

GPT Image 1.5

• + Correct composition with the passenger clearly in the back seat as requested.
• + Authentic taxi driver accessory with the checkered trim on the cap.
• + Natural placement of the capybara's paws on the steering wheel.

• − The passenger's face is slightly blurry and lacks detail compared to Model A.
• − The image has a more grainy, film-like texture which may slightly reduce clarity.

FLUX.1 [dev]

• + Strong composition with a clean graphic design feel
• + Vibrant and cinematic lighting on the jack-o-lantern
• + Text is generally legible and correctly placed

• − Failed the main title text spelling with 'Falloween Rantcj' instead of 'Halloween Party Invitation'
• − The aesthetic is more like modern vector art than the requested 'vintage gothic parchment'
• − Contains minor text artifacts like 'Time: 7pm, 7pm'

GPT Image 1.5

• + Perfect adherence to the 'vintage gothic parchment' texture and style
• + Accurate spelling for all requested text, including the main title and banner
• + Excellent inclusion of all requested details like spider webs, thorns, and twisted trees

• − The darker color palette makes some fine details in the background slightly muddy
• − The text on the scroll banner is a bit thin against the textured background

FLUX.1 [dev]

• + Excellent soft, clay-like 3D miniature textures
• + Clean and minimal aesthetic
• + Graceful inclusion of decorative elements

• − Text rendering is poor with 'SUSH CATON' and messy kanji
• − Lower resolution/slight blur compared to Model B

GPT Image 1.5

• + Perfect text rendering for both 'JAPAN' and 'SUSHI'
• + Highly detailed 3D assets with rich PBR materials
• + Stronger adherence to the '45° top-down isometric' perspective

• − Scene is slightly cluttered compared to the request for 'minimal garnish'

FLUX.1 [dev]

• + Excellent adherence to the request for bright, joyful lighting.
• + Clean composition with consistent character styling.

• − Faces are highly stylized and cartoonish, failing the hyper-photorealistic requirement.
• − Failed to include a tabby kitten, instead showing two dogs and two fox/rabbit hybrids.
• − Anatomy is simplified and lacks realistic fur texture.

GPT Image 1.5

• + Successfully achieves a hyper-photorealistic style with complex fur textures.
• + Accurately includes all four requested animals: golden retriever, tabby kitten, bunny, and fox kit.
• + Effective use of god rays and dew sparkles to create a magical atmosphere.

• − One of the fox kit's paws appears somewhat murky and poorly defined.
• − The composition is a bit crowded compared to the cleaner layout of Model A.

FLUX.1 [dev]

• + Features a light background as requested
• + Clean vector emblem style with good balance
• + Includes a banner for the text

• − Severely misspelled main brand name as 'Flarilaan'
• − Misspelled 'Restaurant' as 'Reseaurant'
• − Cloche is very small and lacks detail

GPT Image 1.5

• + Perfect text rendering for both 'Caffè Florian' and 'Est. 1720'
• + Beautifully detailed cloche dome with subtle texture
• + Stronger retro aesthetic and professional typography

• − Ignored the 'light background' instruction, opting for black
• − Cloche lacks the requested 'steam' effect, showing only abstract shapes above it

FLUX.1 [dev]

• + Excellent aesthetic adherence to the 'modern vector' and 'NASA-inspired' color palette.
• + Sophisticated composition with a clean, centralized layout.
• + High level of detail in the small iconography at the bottom.

• − Text rendering is mostly gibberish despite the clear typography style.
• − Iconography path is logically confusing and includes random planets like Saturn.
• − Fails to clearly delineate the 6 requested steps in sequence.

GPT Image 1.5

• + Perfect adherence to the 6 requested steps with accurate labeling.
• + Excellent text rendering of step titles and crew names.
• + Clean, professional flat-vector blocks that are easy to read as an infographic.

• − Composition is a bit more rigid and standard than Model A.
• − Visual elements are slightly more 'cartoonish' compared to the requested sleek modern style.