Nano Banana Pro vs Seedream 4.5
Head-to-head across 16 challenges
Nano Banana Pro
47.8%
win rate
Ties
8.7%
Seedream 4.5
43.5%
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
Nano Banana Pro
- + Perfect adherence to all spatial instructions, including the plant behind the cube.
- + Highly realistic photographic quality with natural lighting and textures.
- + Excellent refraction and reflection properties on the glass surfaces.
- − Small smudge-like artifacts on the front glass pane.
Seedream 4.5
- + Clean, vibrant colors and sharp focus on the object.
- + Strong adherence to the book and sphere color requirements.
- − The plant is barely visible and extremely blurred, losing its identity as a green plant.
- − The blue sphere is clipping through the glass wall of the cube.
- − The geometry of the cube's base is physically impossible and distorted.
Verdict: Gemini 3 Pro Image Preview is the clear winner as it successfully follows all spatial prompts, particularly the placement of the plant behind the glass. While Seedream 4.5 captures the basic elements, it suffers from significant geometric distortions and a blue sphere that appears to be merging with the glass wall rather than inside it.
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.”
AI Judge Analysis
Nano Banana Pro
- + Excellent adherence to the grid layout request.
- + Professional typesetting with distinct sections for Appetizers, Pizza, and Mains.
- + Higher quality and more varied food photography.
- − Text contains a high amount of gibberish and repeating names.
- − The geometric accents feel slightly dated compared to modern minimalism.
Seedream 4.5
- + Clean, modern minimalist aesthetic with a very clear white background.
- + Bold, legible sans-serif fonts for section headers.
- + The colorful borders around photos provide effective 'vibrant accents'.
- − Failed the request for a 'grid' of food photos, opting for a vertical list.
- − Prices are unrealistically high (e.g., $79 for appetizers), which affects the professional look.
Verdict: Gemini 3 Pro Image Preview followed the structural instructions much better by providing a true grid layout and distinct sections as requested. Seedream 4.5 has cleaner typography and a more modern minimalist feel, but it failed the grid requirement and struggled with realistic pricing in the text.
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
Nano Banana Pro
- + Excellent photographic realism with a true film-like aesthetic.
- + Convincing rainy atmosphere with ripples in puddles and wet textures on clothing.
- + Perfectly captures the 'imperfect framing' requested with a slightly off-center, candid composition.
- − The passing car is sharp rather than having light trails or motion blur.
- − The man's right hand is somewhat muddled in detail against the bike frame.
Seedream 4.5
- + Captures the 'motion blur from passing cars' perfectly with long-exposure style light trails.
- + Stronger 'candid' eye contact with the subject.
- + Clearer action of 'repairing' with a visible wrench tool.
- − The bicycle mechanics are nonsensical, with a chain floating in mid-air and attached to the outside of the frame.
- − The man is kneeling directly in a deep puddle, which feels less realistic for a candid street shot.
- − Overall image has a slightly 'AI-smooth' texture compared to the grit of Model A.
Verdict: Gemini 3 Pro Image Preview produces a significantly more believable and high-quality photograph that looks like genuine 35mm street photography, despite missing the motion blur on the cars. Seedream 4.5 captures the motion blur and the repair tool well, but fails significantly on the structural integrity of the bicycle and has a more synthetic visual quality.
Man and Car in California
Editing“Make a photo of the man driving the car down the California coastline”
AI Judge Analysis
Nano Banana Pro
- + Excellent integration of the man and the car into a scenic environment.
- + Maintains the specific lighting and warmth associated with the California coast.
- + Good dynamic composition with a sense of motion.
- − The man's hair is slightly simplified compared to the source image.
- − The car's interior details have some minor artifacts where they meet the shoreline.
Seedream 4.5
- + Near-perfect preservation of the man's outfit, hair, and footwear from the source image.
- + High degree of source preservation for the car's interior and door mechanics.
- + Realistic perspective of the man sitting inside the vehicle.
- − The car door is wide open while driving, which is safety-illogical and visually distracting.
- − The background is slightly more muted in color compared to the more 'Californian' feel of Model A.
- − The car lacks a driver-side mirror.
Verdict: Both models successfully combined the subjects from the two source images. Seedream 4.5 did a superior job of preserving the exact details of the man's clothing and the car's interior, but failed a logic test by leaving the car door wide open during the drive. Gemini 3 Pro Image Preview created a more cohesive and visually appealing scene that feels more like a professional photograph, despite some minor loss of detail in the man's hair.
Bald man challenge
Editing“Give the person a full, thick head of natural hair with realistic texture, density, and a natural hairline. Preserve facial features and lighting.”
AI Judge Analysis
Nano Banana Pro
- + The hair texture is highly realistic with varied strand directions and natural waves.
- + The hairline is very convincing, showing a soft transition into the skin.
- + Excellent preservation of the facial features, glasses, and background.
- − The added hair volume is significantly wider than the original head shape.
Seedream 4.5
- + Follows the forehead shape of the original image well.
- + Good alignment of the sideburns with the existing beard.
- − The hair texture is blurry and lacks the fine detail seen in the facial hair.
- − The hairline is quite harsh and lacks realistic 'baby hairs' or transition density.
- − Slightly altered the person's brow shape and facial expression.
Verdict: Gemini 3 Pro Image Preview provides a much more convincing and high-quality edit, featuring realistic hair texture, lighting, and a natural-looking hairline that matches the quality of the original photo. Seedream 4.5 produces a more matted, blurry hair texture that feels superimposed and doesn't blend as naturally with the existing beard hair.
Isometric Miniature Diorama Scenes
Text-to-Image“Create a clear, 45° top-down isometric miniature 3D cartoon scene of Japan's signature dish: sushi, with soft refined textures, realistic PBR materials, gentle lighting, on a small raised diorama base with minimal garnish and plate. Solid light blue background. At top-center: 'JAPAN' in large bold text, 'SUSHI' below it, small flag icon. Perfectly centered, ultra-clean, high-clarity, square format.”
AI Judge Analysis
Nano Banana Pro
- + Excellent text rendering with clean alignment and correct font weights
- + High variety of detailed sushi types and realistic food textures
- + Sophisticated diorama base with moss and cherry blossom details
- − The flag icon is slightly merged with the text layout compared to a standalone icon
Seedream 4.5
- + Accurate isometric 45-degree angle
- + Clean, minimalist composition
- + Good 3D lighting and shadow depth
- − Text is somewhat cramped and heavy
- − The texture of the diorama base looks like gritty concrete/sand rather than a refined diorama
- − Very limited variety of sushi compared to the other image
Verdict: Gemini 3 Pro Image Preview is the clear winner as it provides a much more professional and detailed illustration. It features a wide variety of sushi, superior text rendering, and a more aesthetically pleasing diorama base that fits the 'refined textures' prompt better than the gritty base in Seedream 4.5.
Night Sky Transformation
Editing“Change the scene to night: a deep, dark sky with subtle, glistening stars visible behind the mountain.”
AI Judge Analysis
Nano Banana Pro
- + Excellent adherence to the 'night' prompt with a realistic dark sky
- + Beautifully rendered star field with realistic density
- + Preserves the town and landscape geometry perfectly while adjusting the lighting.
- − The mountain peak is a bit dark compared to the 'glistening' potential of moonlight.
Seedream 4.5
- + Successfully darkens the sky and adds visible stars
- + Maintains the structural integrity of the base image.
- − The mountain peak still has bright orange sunset lighting, which is logically inconsistent with the new dark night sky
- − The stars are very sparse and look less realistic than Model A.
Verdict: Gemini 3 Pro Image Preview is the clear winner as it successfully converted the entire atmosphere to night, including the lighting on the mountain peaks. Seedream 4.5 changed the sky to night but failed to alter the orange sunset glow on the Matterhorn, resulting in a lighting mismatch.
Over-the-top cartoon caricature
Editing“Create a caricature of me and my job. Make it exaggerated and humorous, incorporating my profession as a tv show anchor and my love for dogs and hockey.”
AI Judge Analysis
Nano Banana Pro
- + Successfully captures the 'humorous and exaggerated' tone of a traditional caricature.
- + Integrated all requested elements (anchoring, dogs, hockey) into a cohesive and busy scene.
- + The character design retains the recognizable features of the source person despite the shift in art style.
- − Compels a total change in art style toward a cartoon/illustration rather than a photo manipulation.
- − Some anatomical issues with the hands resting on the desk.
Seedream 4.5
- + Maintains a high degree of facial resemblance and realistic texture from the original photo.
- + Correctly interprets the 'bobblehead' style of caricature while keeping a photographic look.
- + Preserves the original background (living room/couch) while adding the desk and props.
- − The composition feels a bit less 'humorous' and more static compared to the chaotic energy of Model A.
- − The hockey stick and gloves look slightly pasted into the foreground with scale issues.
Verdict: Gemini 3 Pro Image Preview opted for a fully illustrated cartoon caricature style which allowed for a more creative and humorous interpretation of the prompt, including dogs playing hockey in the background and a custom news ticker. Seedream 4.5 maintained the photographic style and the source image's background, creating a high-quality 'big-head' caricature that is more grounded in the original photo's reality. Seedream 4.5 is the winner for better preserving the source person's likeness and background while still executing the requested additions and caricature effect.
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 unavailable for this challenge.
Victorian Greenhouse Oasis
Text-to-Image“Hyper-photorealistic interior of a lush Victorian glass greenhouse filled with exotic tropical plants, vibrant blooming orchids, tall ferns, colorful butterflies in flight, sunlight filtering through ornate glass roof creating realistic caustics and dew on leaves, intricate iron framework visible, misty atmosphere, 8K masterpiece.”
AI Judge Analysis
Nano Banana Pro
- + Captures a wide, grand architectural perspective of the Victorian greenhouse.
- + Shows a vast variety of flora including ferns, orchids, and palms as requested.
- + The iron framework is very intricate and realistic.
- − Butterflies look flat and lack realistic lighting interaction.
- − The image is slightly over-sharpened and lacks the requested misty atmosphere.
- − Lighting is uniform and doesn't clearly show the requested 'caustics'.
Seedream 4.5
- + Excellent lighting with strong volumetric god rays and realistic caustics on the floor.
- + Beautifully rendered dew drops on the leaves in the foreground.
- + Captures the 'misty atmosphere' and 'blooming orchids' with high artistic quality.
- − The stained glass addition, while beautiful, wasn't explicitly requested and slightly hides the ironwork.
- − Focuses more on the foreground, showing less of the overall greenhouse structure compared to Model A.
- − The scale of the butterflies in the background is a bit inconsistent with the foreground.
Verdict: Seedream 4.5 captures the requested atmosphere and fine details like dew and caustics much more effectively than Gemini 3 Pro Image Preview. While Gemini 3 Pro provides a better sense of the grand architectural scale, the lighting and texture quality in Seedream 4.5 create a more 'masterpiece' feel that aligns better with the hyper-photorealistic prompt.
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
Nano Banana Pro
- + Excellent texture on the rooftop and costume materials.
- + Naturalistic lighting with a beautiful atmospheric haze.
- + The original emblem design avoids trademark issues while looking heroic.
- − Missed the 'hands on hips' instruction, posing with hands at sides instead.
- − The figure appears somewhat smaller in the frame compared to a 'full-body portrait' style.
Seedream 4.5
- + Strictly followed the 'hands on hips' pose instruction.
- + Centrally framed, powerful composition with vibrant colors.
- + High-quality skin textures and facial characteristics.
- − The emblem is a direct copy of the Superman/Supergirl 'S', which might hit copyright filters.
- − The lighting on the rooftop edge feels slightly disconnected from the character.
Verdict: Seedream 4.5 adhered more closely to the specific movement and posing instructions, such as 'hands on hips,' and provided a more commanding full-body presence. However, Gemini 3 Pro Image Preview produced a more naturalistic and original aesthetic with superior environmental integration, despite missing the specific hand placement.
Studio Ghibli Anime Style
Editing“Transform this photo into a Studio Ghibli–inspired illustration. Use soft pastel colors, hand-painted textures, gentle lighting, dreamy backgrounds, and a warm, nostalgic mood”
AI judge analysis unavailable for this challenge.
Neutral Expression to Genuine Smile
Editing{
"action": "image_edit",
"reference": "uploaded neutral portrait",
"change": "Warm genuine Duchenne smile: lips curved up, slight natural teeth, soft eye crinkles, subtle cheek raise",
"details": "Realistic smiling skin (dimples if present, soft cheek shadows), slightly brighter eyes; keep exact eye shape/color/iris",
"preserve_exact": "Face identity/structure, eyes/nose/lips/eyebrows, hair, skin texture/pores/freckles, makeup, clothing, head pose, background, lighting, shadows, framing",
"no_changes": "No face shape change, no new features, no gaze shift, no hair/clothing/lighting/background edits",
"style": "Ultra-photorealistic 8K portrait, sharp face focus, natural soft lighting, realistic skin glow"
}
AI Judge Analysis
Nano Banana Pro
- + Excellent preservation of skin texture and freckles
- + Realistic cheek raise and eye crinkling
- + Matches the specific requirement for a subtle show of teeth
- − The smile is slightly asymmetrical on the right side of the mouth
Seedream 4.5
- + Beautiful, high-quality smile with even teeth
- + Preserves the overall lighting and colors of the original
- − Slightly over-smooths the skin texture compared to the original
- − The smile is more of a wide grin than the 'subtle' smile requested
Verdict: Both models did an excellent job of maintaining the subject's identity and basic facial structure. Gemini 3 Pro Image Preview is the winner because it better followed the instruction for a 'subtle' smile and preserved the original skin texture (freckles and pores) with much higher integrity, whereas Seedream 4.5 applied a more generic, wide-toothed smile and smoothed the skin significantly.
Golden Hour Stroll
Editing“Add dynamic motion to this photo: make hair blow in the wind, add leaves flying, energetic and lively feel.”
AI Judge Analysis
Nano Banana Pro
- + Excellent preservation of the original image's character, lighting, and background details.
- + The hair edit looks very natural and follows the requested motion.
- + Added leaves are colorful and well-integrated into the scene without obscuring the main subjects.
- − The leaves appear a bit sharp and lack motion blur compared to the dynamic intent of the prompt.
Seedream 4.5
- + Successfully added hair motion and flying leaves as requested.
- + Integrated motion blur on the leaves to enhance the feeling of speed and energy.
- − Failed to preserve the original image accurately, noticeably changing the woman's facial features and the dog's appearance.
- − The composition was altered, zooming out slightly and changing the path's perspective.
- − The lighting is significantly harsher and more 'blown out' compared to the source image.
Verdict: Gemini 3 Pro Image Preview is the clear winner as it perfectly preserves the identity of the woman and the dog from the source image while adding the requested motion effects. Seedream 4.5 recreates the scene rather than editing it, resulting in a different face and lighting that loses the original's charm.
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.”
AI Judge Analysis
Nano Banana Pro
- + Excellent hand-drawn etch style that feels authentic to the 'vintage' prompt.
- + Perfectly accurate text rendering including the grave accent on 'Caffè'.
- + Sophisticated use of negative space and line work for the steam.
- − The 'Est. 1720' text is slightly thinner than the main brand name, though still legible.
Seedream 4.5
- + Strong 'vector emblem' aesthetic that looks more like a modern-vintage badge logo.
- + Good use of warm brown and cream tones with subtle grain texture.
- + Clean, bold layout that would work well for physical signage.
- − The 'Est. 1720' banner feels a bit flat and disconnected from the circular badge.
- − The steam element is very small and lacks the 'vintage minimalist' elegance of the other model.
Verdict: Gemini 3 Pro Image Preview perfectly captures the requested vintage aesthetic with high-quality illustrations and impeccable typography. While Seedream 4.5 produces a solid vector-style badge, it lacks the artistic nuance and sophisticated line work found in Gemini 3 Pro's interpretation.
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.”
AI Judge Analysis
Nano Banana Pro
- + Excellent typographic layout with clear, legible headers and numbered steps.
- + The icons accurately match the requested hardware, particularly the descent and landing modules.
- + Engaging composition that makes good use of the full poster space.
- − The 'Descent' icon shows the lunar module upside down, which is technically inaccurate.
- − The trajectory line for Translunar is a bit busy with many redundant spacecraft icons.
Seedream 4.5
- + Cleanest execution of the requested flat-vector style with crisp, professional lines.
- + Highly accurate icons for the Saturn V and Lunar Module according to the prompt.
- + Logical linear timeline layout that is very typical of educational infographics.
- − The 'Descent' icon (step 5) is represented by a satellite with solar panels rather than a lunar module.
- − The composition has a large amount of empty white space at the bottom.
Verdict: Gemini 3 Pro Image Preview provides a more dynamic and visually interesting poster that feels like a complete product, though it has minor orientation issues with icon placement. Seedream 4.5 offers a cleaner, more professional flat-vector aesthetic that perfectly matches the 'modern infographic' request, but it fails to provide the correct icon for the descent stage, instead showing a generic satellite. Gemini 3 Pro is preferred for its better integration of text and illustrative flow.
Nano Banana Pro
Gemini 3 Pro with image generation capabilities. Combines advanced reasoning with the ability to generate and edit images.
Seedream 4.5
ByteDance's latest image generation model unifying text-to-image and image editing in a single architecture, with improved text rendering and 30-40% faster generation than v4.0