FLUX.2 [dev] vs Nano Banana
Head-to-head across 5 challenges
FLUX.2 [dev]
0.0%
win rate
Ties
0.0%
Nano Banana
100.0%
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]
- + Excellent rendering of glass texture and realistic light refraction.
- + Perfect adherence to the spatial constraints of the prompt, with a clear blue sphere inside and a plant visible through the glass.
- + High visual fidelity and realistic lighting that matches the 'soft window light' description.
- − The sphere appears to be floating rather than resting on the bottom of the cube, which might look slightly unnatural.
Nano Banana
- + Creative composition with strong dramatic lighting and shadows.
- + Good adherence to the core elements of the prompt including the plant placement.
- − The glass cube is rendered with a solid top, making it look more like a pedestal or solid block than a hollow cube containing a sphere.
- − The sphere lacks contact with any surface and the physics of the scene feel less grounded.
- − There are some digital artifacts/dust-like noise in the air that reduce clarity.
Verdict: FLUX.2 [dev] produces a much more realistic and physically coherent image, with excellent glass refraction and a clear sense of the sphere being inside a hollow container. Nano Banana has a more artistic approach with harsher lighting, but it fails to convincingly show the sphere *inside* the cube, making it look more like a solid glass block. FLUX.2 [dev] is the clear winner for its superior rendering quality and better adherence to material properties.
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 depiction of motion blur from passing cars
- + Highly realistic skin texture and lighting
- + Captures the sense of a 'candid' moment with imperfect framing
- − Anatomical issues with the legs merging into the bike frame
- − The bike geometry is nonsensical and cluttered
Nano Banana
- + Beautiful composition and atmospheric lighting
- + The bicycle and tools are rendered with much better structural logic
- + Strong storytelling and clear Japanese setting cues
- − Cars in the background appear static rather than having motion blur
- − The overall image looks slightly more 'stylized' and painterly despite the prompt
Verdict: FLUX.2 [dev] followed the technical instructions for motion blur and 'imperfect framing' much more accurately, resulting in a true candid look, though it suffered from significant structural clipping between the man and the bike. Nano Banana produced a much more aesthetically pleasing and coherent image with better object logic, but it failed to incorporate the requested motion blur. FLUX.2 [dev] is the winner for adhering to the specific photographic constraints like the 50mm lens feel and car movement.
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 adherence to the 'beads in hair' prompt with highly detailed individual beads.
- + Very realistic, cinematic lighting and skin textures with believable scars and dirt.
- + Superior depth of field and bokeh effect that feels like a real photograph.
- − The armor engraving is slightly less sharp compared to Model B.
- − The background fire is a bit blown out and lacks detail.
Nano Banana
- + Intricate and sharp engraving on the plate armor including unique eagle motifs.
- + Strong facial character and clear rendering of the 'battle-worn' aesthetic via heavy scarring.
- + Good contrast and clean composition.
- − Completely missed the 'beads' part of the prompt in the hair.
- − The lighting on the face feels a bit flat and less integrated with the torchlight compared to Model A.
- − The skin texture has a slightly digital, smoothed look in certain areas.
Verdict: FLUX.2 [dev] followed the prompt more accurately, particularly by including the requested beads in the hair. While Nano Banana featured impressive armor engravings, FLUX.2 [dev] achieved a much more lifelike and cinematic result with superior integration of lighting, texture, and depth of field.
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]
- + Excellent anatomical realism for all four animals.
- + Beautifully rendered backlight and god rays that blend naturally with the environment.
- + High level of detail in the fur texture and dew on the grass.
- − The animals are mostly sitting still rather than 'tumbling' as requested.
- − Included an extra fifth animal (a second bunny).
Nano Banana
- + Captures the 'tumbling' and 'playful' aspect better with the fox on its back.
- + Included one of each requested animal correctly.
- + Very vibrant colors and clear 'god rays' from the sun.
- − The fox exhibits anatomical issues, particularly with its multiple, poorly-defined paws.
- − The overall look is more like a 3D digital illustration than 'hyper-photorealistic'.
- − The butterflies are less realistically integrated into the lighting of the scene.
Verdict: FLUX.2 [dev] produces a significantly more realistic image with superior fur textures and lighting, though it added an extra bunny and the composition is a bit static. Nano Banana captures the playful action of tumbling better, but the image suffers from awkward anatomical artifacts on the fox and has a synthetic, illustrative feel. FLUX.2 [dev] is the winner for its high-fidelity rendering and convincing atmosphere.
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 'full-body' requirement well with a wider perspective and clear footwear.
- + The lighting and color palette feel very warm and consistent with a golden sunset.
- + Highly detailed urban background with complex geometry on the rooftop.
- − The chest emblem is specifically the Superman/Supergirl 'S', which feels less like an original 'practical design' and more like a copyright-heavy asset.
- − The anatomy around the hips and legs feels slightly stylized compared to the photorealistic prompt.
- − There are some clipping artifacts where the cape meets the shoulder and hair.
Nano Banana
- + Excellent realism in the facial features and hair texture.
- + The costume design feels more original and practical with visible stitching and seams.
- + Superior lighting and depth on the character, making her feel better integrated into the scene.
- − Slightly less 'full-body' than Model A, cutting off the very bottom edge of the boots.
- − The city background is a bit more generic/blurry in comparison to the crisp buildings in Model A.
Verdict: Nano Banana wins by a narrow margin due to its superior realism in facial rendering and the practical, original design of the superhero costume. While FLUX.2 [dev] provides a better full-body composition and more detailed city geometry, it leans into Supergirl iconography too heavily and has slightly less convincing lighting on the character's face.
FLUX.2 [dev]
Black Forest Labs' open-weights image generation model with frontier performance, available for non-commercial local deployment
Nano Banana
Gemini 2.5 Flash Image is optimized for image understanding and generation, offering a balance of price and performance with fast and efficient image generation and editing capabilities.