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FLUX.2 [flex] Black Forest Labs FLUX.2 [pro] Black Forest Labs

Settled by community votes across 7 shared challenges, with an AI judge weighing in on each.

FLUX.2 [flex]

25.2 arena score

#13 of 44 in Text-to-Image

Skill signature

Not enough comparable category data

The chart appears once both models have ratings across at least three shared arena categories.

FLUX.2 [pro]

26.3 arena score

#9 of 44 in Text-to-Image

Vote tally

Where the votes landed

FLUX.2 [flex]

28.6%

win rate

Ties

14.3%

FLUX.2 [pro]

57.1%

win rate

28.6% 14.3% ties 57.1%
Shared challenges 7

Challenge by challenge

The strongest take from each model on every shared challenge, with the AI judge's read.

Geometric Composition

Text-to-Image

“A glass cube on a wooden table. Inside the cube is a small blue sphere. On top of the cube sits a red book. A green plant is behind the cube, partially visible through the glass. Soft window light from the left.”

FLUX.2 [flex]
FLUX.2 [pro]
0% wins 0% ties 100% wins

AI Judge Analysis

FLUX.2 [flex]

  • + Accurately depicts the plant partially visible through the glass cube.
  • + Realistic glass refraction and soft lighting matching the prompt's direction.
  • + Excellent material texture on the red book cover.
  • The sphere is quite large relative to the cube, rather than 'small' as requested.

FLUX.2 [pro]

  • + Correctly interprets the 'small' scale of the blue sphere within the cube.
  • + High visual clarity and realistic wood grain on the table.
  • + Accurate placement of all requested elements including the background plant.
  • The plant is less visible through the glass compared to Model A, appearing more behind the cube's top edge.

Verdict: Both models followed the prompt perfectly, but FLUX.2 [pro] is slightly better due to its more accurate interpretation of the sphere's scale ('small blue sphere'). While FLUX.2 [flex] has slightly more interesting glass refraction effects, FLUX.2 [pro] delivers a more balanced and realistic composition.

Man and Car in California

Editing
Edit instruction

“Make a photo of the man driving the car down the California coastline”

Source
FLUX.2 [flex]
FLUX.2 [pro]
67% wins 33% ties 0% wins

AI Judge Analysis

FLUX.2 [flex]

  • + Retains the car's headlights and grill details very accurately compared to the source.
  • + The character's hairstyle is perfectly preserved from the source image.
  • + Excellent composition with a dynamic motion blur on the road and wheels.
  • The character's face is slightly less clear/detailed than in Model B.

FLUX.2 [pro]

  • + Strong preservation of the character's facial features and distinctive hair.
  • + Very realistic lighting on the car that matches the outdoor environment.
  • + Great scenery that captures the 'California coastline' vibe perfectly.
  • Slight deformation in the lower part of the front grill/bumper area compared to the source.
  • The character appears a bit small within the driver's seat.

Verdict: Both FLUX.2 [flex] and FLUX.2 [pro] did an exceptional job combining the two source images into a cohesive scene. FLUX.2 [flex] is the winner because it better preserved the specific details of the car, particularly the headlights and the front bumper shape, while maintaining the character's unique identity and adding a more convincing sense of motion.

Candid Street Photography

Text-to-Image

“A candid street photo of an elderly Japanese man repairing a red bicycle in light rain, reflections on wet pavement, shallow depth of field, 50mm lens, natural skin texture, imperfect framing, motion blur from passing cars, cinematic but realistic, no stylization.”

FLUX.2 [flex]
FLUX.2 [pro]
0% wins 0% ties 100% wins

AI Judge Analysis

FLUX.2 [flex]

  • + Excellent depiction of motion blur from passing cars
  • + Strong adherence to the 'imperfect framing' request with the large foreground pole
  • + Atmospheric use of rain and bokeh light reflections
  • Physical logic of the bicycle is slightly messy (chain and frame alignment)
  • Hand details are a bit muddled during the repair action

FLUX.2 [pro]

  • + Exceptional realism in skin texture and clothing materials
  • + Very clear and logical bicycle anatomy
  • + Subtle but effective use of light rain and ground reflections
  • Misses the requested 'motion blur from passing cars' as the background vehicles are static
  • Composition feels a bit more staged than 'imperfect' or 'candid'

Verdict: FLUX.2 [flex] followed the creative atmospheric prompts better, specifically capturing the motion blur and the gritty, 'imperfect' framing of a street photograph. However, FLUX.2 [pro] produced a much higher quality image in terms of anatomical correctness and texture, though it failed to incorporate the motion blur element.

Modern Clean Menu

Text-to-Image

“Modern minimalist restaurant menu design, white background with colorful food photos in grid, sections for appetizers/pizza/mains, bold sans-serif fonts, vibrant accents, clean professional layout for casual dining.”

FLUX.2 [flex]
FLUX.2 [pro]

AI Judge Analysis

FLUX.2 [flex]

  • + Clean, balanced composition with high-quality food photography.
  • + Very professional use of white space and color coordination betweenheaders and image frames.
  • + Text rendering is aesthetically pleasing and fits the sans-serif requirement well.
  • Text content is largely nonsensical/gibberish.
  • The layout of section headers is a bit staggered (Appetizers at top, then Pizza and Mains side-by-side).

FLUX.2 [pro]

  • + Text is much more readable with recognizable words like 'Garlic Bread' and 'Margherita Pizza'.
  • + Strong adherence to the 'grid' requirement with labeled photos.
  • + Functional inclusion of icons next to category headings.
  • Cluttered layout with repetitive text and categories.
  • Price formatting is strange, using commas instead of decimals for small numbers (e.g., $,30).
  • Spelling error in the 'MINS' (Mains) section header.

Verdict: FLUX.2 [flex] produced a much more visually appealing and professional design that looks like a real minimalist menu, despite the placeholder text being nonsensical. FLUX.2 [pro] followed the functional requirements of the prompt more closely by including legible food names and a denser grid, but its layout feels cramped and contains several spelling and formatting errors.

Adorable Baby Animals in Sunny Meadow

Text-to-Image

“Hyper-photorealistic scene of fluffy baby animals—a golden retriever puppy, tabby kitten, baby bunny, and red fox kit—with big expressive eyes and ultra-detailed soft fur, playfully chasing butterflies and tumbling together in a lush wildflower meadow, warm golden sunrise light with god rays and dew sparkles, joyful wholesome vibe, 8K masterpiece.”

FLUX.2 [flex]
FLUX.2 [pro]

AI Judge Analysis

FLUX.2 [flex]

  • + Includes all four requested animals (dog, cat, bunny, fox).
  • + Excellent adherence to lighting requests with clear 'god rays' and dew sparkles.
  • + Dynamic composition that effectively shows the animals 'chasing' and 'tumbling'.
  • The puppy's front left paw has an anatomical issue where the paw pad structure is unclear.
  • The fox's tail transition to the white tip is a bit abrupt.

FLUX.2 [pro]

  • + Very high detail in the fur texture and 'expressive eyes'.
  • + Charming character interactions and posing.
  • + Correct rendering of dew drops on the flora.
  • Missing one of the four required animals (the bunny is absent).
  • The puppy has an extra limb/paw visible behind the cat's head.
  • The cat's anatomy is slightly distorted in its midsection.

Verdict: FLUX.2 [flex] successfully included all four requested animals and captured the energetic atmosphere of the prompt perfectly. While FLUX.2 [pro] has beautiful lighting and fur texture, it failed to include the bunny and suffered from significant anatomical errors, including an extra puppy paw.

Vintage Cafe Logo

Text-to-Image

“Vintage minimalist restaurant logo for "Caffè Florian", retro cloche dome with steam and "Est. 1720" banner, classic typography, warm brown and cream tones, subtle texture on light background, vector emblem style.”

FLUX.2 [flex]
FLUX.2 [pro]
0% wins 0% ties 100% wins

AI Judge Analysis

FLUX.2 [flex]

  • + Clean, minimalist vector execution highly suitable for a modern-vintage logo.
  • + Excellent typography with perfect arching and correct accent marks.
  • + Very high clarity and simple color palette following the brown and cream prompt.
  • The 'Est. 1720' banner feels a bit disconnected from the cloche graphically.
  • Background texture is extremely subtle, almost appearing as a flat solid color.

FLUX.2 [pro]

  • + Sophisticated vintage aesthetic with great use of hatching and shading on the cloche.
  • + Excellent background texture that feels like aged paper/parchment.
  • + More cohesive emblem-style layout with the circular framing.
  • Typography is slightly less 'classic' in style compared to the elegance of Model A.
  • The steam lines are a bit thick relative to the fine detail in the cloche.

Verdict: Both models followed the prompt exceptionally well, producing professional-grade logos with correct spelling and imagery. FLUX.2 [flex] excels at a clean, minimalist vector look that is ready for digital use, while FLUX.2 [pro] delivers a richer, more textured illustration that feels more authentically 'vintage'.

Apollo 11: Journey to Tranquility

Text-to-Image

“Create a clean, modern vector infographic poster about the Apollo 11 mission. NASA-inspired palette (navy, white, muted red, light gray). Flat-vector style, crisp lines, consistent iconography, subtle gradients only. Steps (stop at landing): 1. Launch (Saturn Vicon) 2. Earth Orbit (Earth + orbit ring icon) 3. Translunar (trajectory arc icon) 4. Lunar Orbit (Moon + orbit ring icon) 5. Descent (lunar module descending icon) 6. Landing (lunar module on the surface icon) Small supporting elements (minimal text): • Crew strip: three silhouette icons with only last names: Armstrong, Aldrin, Collins. • Landing site marker: Moon pin labeled "Tranquility" only. Layout constraints: generous margins, large readable labels, clean background with subtle stars. Vector-only, print-poster look, high resolution.”

FLUX.2 [flex]
FLUX.2 [pro]
0% wins 0% ties 100% wins

AI Judge Analysis

FLUX.2 [flex]

  • + Excellent text readability and accurate spelling.
  • + Clean, minimalist layout that adheres perfectly to the 'modern vector' style.
  • + Strict adherence to the requested NASA-inspired color palette.
  • Missed the final 'Landing' step requested in the prompt.
  • The layout is a bit scattered, with several disconnected trajectory lines.

FLUX.2 [pro]

  • + Successfully included all requested steps, including the landing on the surface.
  • + Includes creative extra details like the astronaut silhouettes and the 'Tranquility' base marker.
  • + Stronger cohesive flow between the infographic stages using connecting lines.
  • Contains significant gibberish text in the supporting descriptions.
  • The 'Saturn V' icon looks more like a generic shuttle or stylized rocket rather than the specific Saturn V profile.
  • The Earth orbit illustration repeats the Earth icon twice, which is confusing.

Verdict: FLUX.2 [flex] produced a much cleaner and more professional graphic with perfect typography, though it failed to include the final landing step. FLUX.2 [pro] followed the prompt's instructions for the narrative steps more accurately and included the landing, but it suffered from illegible filler text and a less accurate rocket icon. FLUX.2 [flex] is preferred for its superior visual clarity and correct spelling, making it more usable as a template.

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