FLUX.2 [dev] Flash fal vs FLUX.2 [pro] Black Forest Labs

FLUX.2 [dev] Flash

• + Excellent material physics, showing realistic thick glass edges and reflections of the sphere on the bottom pane.
• + Highly detailed textures on the book cover and the wooden table surface.
• + Perfect adherence to all prompt elements including placement and lighting.

• − The glass has slight imperfections/dust specks which, while realistic, might look 'dirty' to some users.

FLUX.2 [pro]

• + Clean, minimalist aesthetic with very sharp, clear glass edges.
• + Good composition with a nice shallow depth of field on the background plant.
• + Accurately follows all positioning instructions in the prompt.

• − The blue sphere looks very matte and lacks the realistic caustic reflections or floor reflections seen in Model A.
• − The glass cube lacks the physical mass and refractive properties of real glass, looking more like thin acrylic.

FLUX.2 [dev] Flash

• + Excellent preservation of the man's clothing and hairstyle from the source image.
• + Captures a high-quality, cinematic perspective from inside/near the car.
• + Very detailed dashboard rendering consistent with a luxury vehicle.

• − The car interior/dashboard styling changed significantly from the Rolls Royce source image.
• − The man's facial expression is much more serious than the smiling source image.

FLUX.2 [pro]

• + Preserved the exact car model (Rolls Royce Phantom Drophead) and its exterior features perfectly.
• + Accurately captured the man's smiling expression from the source image.
• + Excellent motion blur on the wheels and road adds to the realism of the scene.

• − The person is quite small in the frame, making it hard to see fine details.
• − The clothing details are less distinct compared to Image A.

FLUX.2 [dev] Flash

• + Excellent motion blur on the passing cars in the background
• + Very realistic skin texture and age detailing on the subject
• + Strong adherence to the 'imperfect framing' prompt with a centered, street-photography aesthetic

• − Physical logic errors with the bicycle spokes and frame intersecting the man's legs
• − The tools on the ground appear slightly muddy and poorly defined

FLUX.2 [pro]

• + Superior composition and use of shallow depth of field
• + More natural crouching pose for a bike repair context
• + Clean, high-quality rendering with fewer geometric artifacts in the bicycle

• − Lacks the requested 'motion blur from passing cars' as the background vehicles are static/sharp
• − Skin texture on the hands is slightly smoother/less detailed than the face

FLUX.2 [dev] Flash

• + Excellent rendering of ornate engravings and fine metallic textures.
• + Highly detailed leather straps with realistic stitching and buckle hardware.
• + Perfect adherence to the 'hair braided with small beads' requirement with clear, distinct braids.

• − Symmetry in the background torches feels a bit artificial.
• − The character's expression is somewhat static compared to the battle-worn theme.

FLUX.2 [pro]

• + Superior skin texture and realistic depth in the scarring and dirt application.
• + Wonderful warm torchlight reflection that creates a more cohesive, atmospheric mood.
• + Dynamic and natural-looking bokeh sparks that blend well with the scene.

• − The leather straps appearing on the shoulder look slightly distorted or melted into the fabric.
• − The hair braids are a bit messy and less defined than in the other model.

FLUX.2 [dev] Flash

• + Excellent photographic quality and consistency in the pizza images
• + Strong adherence to 'vibrant accents' with the colorful border elements
• + Clean grid layout that feels modern and professional

• − The text is largely illegible and contains garbled characters
• − Section headers are poorly placed, with pizzas shown under 'Appetizers' and 'Mains' containing a pizza image

FLUX.2 [pro]

• + Text rendering is significantly clearer and more legible than the competitor
• + Good use of color-coded iconography for different menu categories
• + Better variety of food items including bread, steak, and chicken

• − Logical errors in categorizing items, such as repeating 'Garlic Bread' and 'Margherita Pizza' in every column
• − Top header is redundant and visually distracting
• − Minor typos in section headers like 'MINS' instead of 'MAINS'

FLUX.2 [dev] Flash

• + Excellent text integration with a natural fiery glow effect.
• + Highly photorealistic textures on the burger bun and patty.
• + Perfectly captures the 'exploded' view with clear separation of all components.

• − The starburst shape is slightly irregular in its linework.

FLUX.2 [pro]

• + Dynamic sense of motion with circular trails and flying crumbs.
• + Very clean, bold typography that is easy to read.
• + Rich, melting cheese details and vibrant lighting.

• − The 'starburst' for the price looks like a standard graphic sticker rather than an integrated fiery element.
• − The burger components are slightly more clumped together compared to the 'exploded' request.

FLUX.2 [dev] Flash

• + Excellent text legibility and accuracy.
• + Highly realistic chalk texture with smudges and varying pressure.
• + Great composition that feels like a real café interior.

• − The cursive in the title is less 'elegant' compared to model B.
• − The bottom text appears slightly more like a digital font than handwriting.

FLUX.2 [pro]

• + Beautiful, elegant cursive title that matches the prompt's stylistic request.
• + Text is well-centered and fits the vertical slate board nicely.
• + Natural variation in handwriting sizes and styles.

• − Minor text artifacts where the chalk dust is a bit too heavy, making it look slightly speckled.
• − The slate board texture feels slightly more artificial compared to the matte chalkboard in model A.

FLUX.2 [dev] Flash

• + Successfully replicates the facial features, sunglasses, and attire of the character from Image 2.
• + Matches the lighting and yellow studio environment of Image 1 effectively.

• − Serious anatomical errors, including a second head with long hair appearing behind the main character.
• − The pose is fundamentally incorrect and lacks the dynamic balance of the first image.

FLUX.2 [pro]

• + Excellent rendition of the character from Image 2, maintaining facial accuracy and clothing details.
• + High visual quality with natural skin textures and lighting integration.

• − Fails to match the exact pose from Image 1, opting for a squatting position instead of the one-legged cross-legged stand.
• − The left arm positioning is reversed compared to the source image's pose.

FLUX.2 [dev] Flash

• + Excellent anatomical realism for both the horse and the astronaut.
• + High quality cinematic lighting and background rendering.
• + Coherent and logical composition based on traditional imagery.

• − Completely failed the negative constraint to have the horse on top.
• − Interpretation is very standard and lacks the requested surrealism.

FLUX.2 [pro]

• + Successfully followed the specific instruction to place the horse on top of the astronaut.
• + More interesting, surreal composition that matches the prompt's intent.
• + Beautiful rendering of galactic backgrounds and the planet surface.

• − The transition between the horse's legs and the astronaut's back is a bit muddy.
• − The astronaut's left arm and global lighting on the suit feel slightly flat compared to the horse.

FLUX.2 [dev] Flash

• + Excellent texture on the capybara's fur
• + Clear front-facing perspective that captures all elements of the prompt clearly
• + The 'TAX' sign on the roof adds a humorous but fitting detail

• − The passenger appears to be in the front passenger seat rather than the back seat
• − The capybara's paws look more like primate hands than rodent paws

FLUX.2 [pro]

• + Correct placement of the passenger in the back seat
• + Superior lighting and bokeh effect through the side window
• + High-quality leather jacket texture and realistic car dashboard

• − The capybara's hands are overly anthropomorphic and slightly distorted
• − The capybara's face is partially obscured by the side profile

FLUX.2 [dev] Flash

• + Excellent typography style that matches the vintage gothic theme
• + Highly detailed and symmetrical thorn and web border
• + Strong atmospheric lighting on the jack-o-lantern

• − Includes a line of hallucinated text/symbols ('Burk: 03696') above the event details
• − The central scroll has a slightly lower contrast compared to the rest of the text

FLUX.2 [pro]

• + Perfect text rendering for all requested event details without hallucinations
• + Includes a moon in the background which adds to the moody night sky requirement
• + Effective cinematic lighting and fog around the base of the pumpkin

• − The thorn border is less intricate and thinner than Model A
• − The 'You are invited' text is slightly small within the scroll

FLUX.2 [dev] Flash

• + Excellent preservation of the original face, beard, and lighting
• + Maintains the exact same clothing and background without artifacts
• + Realistic hair texture and natural integration with the sideburns

• − The choice of an afro-texture hair style might feel like a stylistic leap from the original beard texture

FLUX.2 [pro]

• + Natural wavy hair style that matches the existing beard color and texture
• + Good preservation of the background and jacket

• − Noticeable alterations to the facial features, making the person look younger/different
• − The forehead and eye area have been smoothed and reshaped incorrectly compared to the source

FLUX.2 [dev] Flash

• + Excellent text rendering and typography layout
• + Highly realistic wood texture on the diorama base
• + Sophisticated subsurface scattering on the fish textures

• − The sushi roll construction is slightly nonsensical with fish draped over a roll

FLUX.2 [pro]

• + Perfectly adheres to the requested white bold text style
• + Great use of the diorama base with a tiered architectural look
• + Excellent variety of sushi types within the miniature style

• − The rice texture looks like uniform beads rather than grains
• − Slightly less 'realistic PBR' feel compared to the other model

FLUX.2 [dev] Flash

• + Excellent preservation of the subject's facial features and likeness within the caricature format.
• + Highly detailed and creative scene that integrates dogs as hockey players and news anchors.
• + Strong use of environmental storytelling with the hockey rink background and anchor desk.

• − Some text on background signs is slightly garbled or nonsensical.

FLUX.2 [pro]

• + Clean, modern vector-style illustration.
• + Good inclusion of all requested elements including microphones and hockey sticks.

• − The facial likeness to the original source image is significantly weaker compared to Model A.
• − The dogs appear very generic and uniform in style, lacking the variety seen in the other output.

FLUX.2 [dev] Flash

• + Includes all four requested animals (dog, cat, bunny, fox).
• + Excellent rendering of light rays and dew sparkles in the meadow.
• + Very clear, expressive eyes on all subjects.

• − Includes an extra bunny, totaling five animals instead of four.

FLUX.2 [pro]

• + Highly dynamic and playful posing with animals 'tumbling' as requested.
• + Superb fur detail and lighting coherence on the puppy.
• + Good integration of butterflies into the interaction.

• − Completely missed the 'baby bunny' from the prompt.
• − Anatomical weirdness on the puppy's paws (extra toes/pads).

FLUX.2 [dev] Flash

• + Excellent character likeness and facial expressions compared to the source
• + Successfully implements stylized Ghibli features like rosy cheeks and clean line art
• + Adds creative Ghibli-esque elements like the field of flowers and forest spirit in the background

• − Changes the background from a city street to a field, which may not be desired for source preservation

FLUX.2 [pro]

• + Preserved the original street setting and background elements like the red bus and buildings
• + Soft watercolor textures perfectly match the requested hand-painted look
• + Accurately replicates the character positions and clothing patterns from the source

• − The man's facial expression is a bit blank compared to the distinct 'distracted' look in the source image

FLUX.2 [dev] Flash

• + Excellent preservation of the original image's composition and subjects
• + Adds a high density of small, realistic-looking leaves across the scene

• − The wind effect on the hair is somewhat stiff and symmetrical
• − Some leaves overlap the subjects in a way that looks like a basic digital overlay

FLUX.2 [pro]

• + Highly dynamic hair motion that looks natural and windswept
• + Effective use of depth of field with foreground blurred leaves adding a sense of motion
• + Actually modifies the clothing (denim jacket) to show it blowing in the wind

• − One large leaf in the bottom left corner is slightly blurry and distracting

FLUX.2 [dev] Flash

• + Excellent typography with a classic, hand-drawn feel
• + Strong vector emblem style with high-contrast shading
• + Perfect adherence to color and texture prompts

• − The banner layout is a bit crowded around the date

FLUX.2 [pro]

• + Sophisticated composition with circular framing
• + Clean and precise vector lines
• + Excellent use of negative space

• − The cloche design is slightly abstract compared to a traditional dome

FLUX.2 [dev] Flash

• + Successfully includes two Earth and two Moon graphics to represent different stages.
• + Maintains high-detail renderings of the Saturn V and Lunar Module.
• + Includes the requested astronaut names correctly.

• − The layout is cluttered with overlapping elements and repetitive labels.
• − Includes hallucinated text like 'Sataurr Iccon' and multiple 'Landing' labels.
• − Visual style is more illustrative than the requested 'flat-vector' style.

FLUX.2 [pro]

• + Excellent clean, modern vector layout with a logical top-to-bottom flow.
• + Perfectly captures the 'flat-vector' style with crisp lines and consistent iconography.
• + Source-accurate NASA-inspired color palette and minimalist design.

• − The placeholder descriptive text is nonsensical gibberish.
• − The Saturn V rocket icon is a bit generic compared to the specific model requested.