FLUX.2 [dev] vs FLUX.2 [pro]
Head-to-head across 5 challenges
FLUX.2 [dev]
50.0%
win rate
Ties
0.0%
FLUX.2 [pro]
50.0%
win rate
Challenge Results
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.”
AI Judge Analysis
FLUX.2 [dev]
- + Perfect adherence to all spatial instructions.
- + Excellent rendering of glass texture and refractive light.
- + Accurate interpretation of 'soft window light' affecting the scene.
FLUX.2 [pro]
- + Sophisticated composition and photographic depth of field.
- + Very realistic material rendering for the book and wooden table.
- + Sharp, clean glass edges.
- − The green plant is not visible through the glass as requested, only around it.
- − The blue sphere is partially fused with the bottom of the glass cube.
Verdict: FLUX.2 [dev] followed the complexity of the prompt more accurately, specifically ensuring the plant was visible through the glass cube and positioning all elements correctly. FLUX.2 [pro] produced a more aesthetically polished and realistic image, but failed to show the plant through the glass and had a minor clipping error where the sphere meets the cube's base.
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.”
AI Judge Analysis
FLUX.2 [dev]
- + Excellent representation of motion blur from passing cars as requested.
- + Captures the feeling of 'light rain' through visible droplets and atmospheric haze.
- + The framing feels appropriately 'imperfect' and candid for a street photo.
- − Significant anatomical and mechanical errors where the man's legs and the bicycle frame merge in a confusing way.
- − The bicycle's structure is nonsensical in the center area.
FLUX.2 [pro]
- + Extremely high detail in skin texture and clothing materials.
- + Clear, logical bicycle mechanics and a realistic squatting pose for the subject.
- + Beautifully rendered reflections and wet pavement textures.
- − Failed to include the requested 'motion blur from passing cars'.
- − The background car is static and doesn't convey the busy street energy requested.
Verdict: FLUX.2 [dev] followed the complex motion blur and framing instructions much better, creating a more atmospheric and dynamic scene, though it suffered from major physical clipping issues between the man and the bike. FLUX.2 [pro] produced a much cleaner, more realistic image with superior textures and logical anatomy, but it missed the specific prompt requirement for motion blur, resulting in a more static composition.
Fantasy Warrior
Text-to-Image“Close portrait of a battle-worn paladin in ornate engraved plate armor, hair braided with small beads, faint scars and dirt on the skin, warm torchlight reflecting off metal, shallow depth of field, bokeh sparks, lifelike eyes, highly detailed texture on leather straps and cloth underlayer.”
AI Judge Analysis
FLUX.2 [dev]
- + Excellent rendering of the ornate engraved armor texture.
- + Very realistic leather straps with visible wear and accurate buckle placement.
- + Good adherence to the 'beads' prompt with natural-looking wooden beads.
- − The lighting on the face feels a bit flat compared to the dramatic background.
- − The scarring is a bit simplistic in texture.
FLUX.2 [pro]
- + Superior skin texture with grit, dirt, and more realistic, deep scarring.
- + Dynamic lighting with very strong warm reflections off the armor's surface.
- + Better sense of depth and atmospheric bokeh sparks.
- − The beads in the hair look slightly more like modern plastic or colorful jewelry than weathered paladin beads.
- − The metal engraving is slightly less crisp than in Model A.
Verdict: Both models followed the prompt exceptionally well, but FLUX.2 [pro] wins out due to its superior skin texture and more dramatic use of torchlight, which creates a more lifelike and cinematic feel. FLUX.2 [dev] produced excellent armor and leather details, but the character's face felt slightly more 'cleanly' rendered despite the requested dirt and scars.
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.”
AI Judge Analysis
FLUX.2 [dev]
- + Includes all four requested animals (dog, cat, fox, and two bunnies).
- + Excellent use of backlight and 'god rays' through the fur.
- + Very high level of realism in the fur texture and meadow details.
- − The animals are mostly sitting still rather than 'playfully chasing' and 'tumbling' as requested.
- − The bunny looks a bit static and duplicated in the foreground.
FLUX.2 [pro]
- + Captures the 'playfully chasing' and 'tumbling' action much more dynamically.
- + Superior composition with more expressive, 'big' eyes as requested.
- + The lighting and dew sparkles are beautifully rendered.
- − Failed to include the baby bunny requested in the prompt.
- − The anatomy of the puppy's raised paw is slightly distorted.
Verdict: FLUX.2 [dev] followed the technical requirements of the prompt better by including all four animal types, whereas FLUX.2 [pro] missed the bunny entirely. However, FLUX.2 [pro] much more effectively captured the 'playful' and 'tumbling' energy of the scene, resulting in a more charming and expressive image despite the missing subject.
Heroic Super Hero Portrait
Text-to-Image“Hyper-photorealistic full-body portrait of a female superhero standing triumphantly on a New York skyscraper rooftop at golden sunset, wearing a classic modest superhero costume with flowing cape, chest emblem, gloves, and boots in red and blue colors, practical design, short hair, strong determined heroic expression looking into the distance, powerful confident stance with hands on hips and cape billowing dramatically in the wind, detailed urban cityscape background, warm natural sunlight with sharp shadows and fabric highlights, ultra-sharp textures on suit, hair, and concrete, 8K masterpiece, empowering family-friendly style.”
AI Judge Analysis
FLUX.2 [dev]
- + Captures the 'golden sunset' lighting with a warm, pervasive glow across the city.
- + Very clean, classic interpretation of the superhero costume and emblem.
- + Accurately depicts the full-body portrait requested with visible boots and stance.
- − The background architecture appears somewhat generic and repetitive compared to real NYC.
- − The character's face has a slightly airbrushed, less realistic texture.
FLUX.2 [pro]
- + Highly detailed and realistic texture on both the costume materials and the skin.
- + Excellent urban background featuring a clear representation of the Empire State Building.
- + More complex and 'practical' armor design that fits the prompt's request for realism.
- − Lighting is a bit more dramatic/shadowed, losing some of the 'warm natural sunlight' requested on the figure.
- − The cape flow feels slightly less 'billowing dramatically' than in Model A.
Verdict: Both models followed the prompt exceptionally well, but FLUX.2 [pro] stands out for its superior realism, particularly in the skin textures and the recognizable New York City skyline. While FLUX.2 [dev] provides a very clean and bright heroic image that perfectly matches the 'golden sunset' atmosphere, FLUX.2 [pro] feels more like a high-budget cinematic still with its detailed practical suit design.
FLUX.2 [dev]
Black Forest Labs' open-weights image generation model with frontier performance, available for non-commercial local deployment
FLUX.2 [pro]
Black Forest Labs' state-of-the-art image generation model with maximum quality and speed, supporting text-to-image and multi-reference image editing with up to 4MP output