Image Battle
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Head to head

GPT Image 1.5 vs Nano Banana 2

Nano Banana 2 wins 53% of 89 direct comparisons against GPT Image 1.5.

Both models received the same prompts. Wins and losses count only images judged together in the same call, the same comparisons the leaderboard Elo is fitted from.

GPT Image 1.5
OpenAI
1094 Elo ±45
Rank #13 of 42 · median 37s per image · 11 refused
34–15–40
wins – ties – losses for GPT Image 1.5
89 direct comparisons
Elo expectation: GPT Image 1.5 wins 47%
Nano Banana 2
Google
1116 Elo ±33
Rank #12 of 42 · median 16s per image

By category

CategoryGPT Image 1.5Nano Banana 2Direct record
Anime & Cartoon Style 1128 1202 2–2–4
Architecture & Interiors 1160 1069 5–3–2
Complex Scenes 1070 1175 2–3–4
Ghibli style 1204 1168 1–0–2
Graphic Design 930 1072 2–0–8
Hands & Anatomy 1114 1096 5–1–3
Photorealistic People & Portraits 1108 1065 3–3–4
Surreal & Creative Prompts 1166 1177 4–1–5
Text in Images 1003 1151 3–1–6
Ultra Hard 1286 1128 7–1–2

By criterion

CriterionGPT Image 1.5Nano Banana 2
Prompt adherence 1135 1112
Technical quality 1034 1080
Artistic merit 1079 1093
Detail execution 1072 1116
Realism & coherence 1006 1074

Side by side

Anime & Cartoon Style A cartoon of a cat and a dog on an adventure, drawn in a colorful 2D style.
A cartoon of a cat and a dog on an adventure, drawn in a colorful 2D style. - GPT Image 1.5
GPT Image 1.5 8 / 10 This is one of the stronger interpretations for explicit storytelling, vibrant styling, and plentiful well-executed details. Slight visual overcrowding keeps it below the most compositionally controlled images.
A cartoon of a cat and a dog on an adventure, drawn in a colorful 2D style. - Nano Banana 2
Nano Banana 2 9 / 10 This stands near the top for environmental storytelling, expressive character action, and balanced decorative richness. Minor limb exaggeration prevents a completely flawless assessment, but the illustration is convincingly professional.
Architecture & Interiors A traditional Moroccan riad courtyard with detailed zellige tilework, flowing fountain, citrus trees, and ornate woodwork. Morning light casting intricate shadow patterns.
A traditional Moroccan riad courtyard with detailed zellige tilework, flowing fountain, citrus trees, and ornate woodwork. Morning light casting intricate shadow patterns. - GPT Image 1.5
GPT Image 1.5 8 / 10 Ranks fourth of 13 for its exceptionally rich interpretation and compelling fountain-centered composition. Slightly exaggerated surface contrast and decorative texture place it below the more naturalistic leaders.
A traditional Moroccan riad courtyard with detailed zellige tilework, flowing fountain, citrus trees, and ornate woodwork. Morning light casting intricate shadow patterns. - Nano Banana 2
Nano Banana 2 6 / 10 Ranks ninth of 13, offering competent architecture and an appealing domestic atmosphere. The subdued fountain action and repeated small-scale ornament prevent the image from achieving the stronger examples' fidelity.
Complex Scenes A bustling market scene with dozens of people buying and selling goods.
A bustling market scene with dozens of people buying and selling goods. - GPT Image 1.5
GPT Image 1.5 6 / 10 Vivid and highly faithful to the prompt, but weaker on the close-up interaction that should anchor the scene. The ambiguous weighing apparatus and soft hand structure outweigh its attractive atmosphere.
A bustling market scene with dozens of people buying and selling goods. - Nano Banana 2
Nano Banana 2 9 / 10 This is the strongest overall interpretation, combining exceptional crowd density with readable commercial interactions. Minor small-scale irregularities prevent a flawless score.
Ghibli style A flying castle floating in clouds at sunrise. Match the visual aesthetic of 'Howl's Moving Castle' by Studio Ghibli, with Miyazaki's blend of steampunk elements and fantasy.
A flying castle floating in clouds at sunrise. Match the visual aesthetic of 'Howl's Moving Castle' by Studio Ghibli, with Miyazaki's blend of steampunk elements and fantasy. - GPT Image 1.5
GPT Image 1.5 9 / 10 This ranks first of the 12 images for its balance of stylistic fidelity, imaginative engineering, and clear composition. Minor ambiguity in the smallest mechanisms keeps it below a flawless score.
A flying castle floating in clouds at sunrise. Match the visual aesthetic of 'Howl's Moving Castle' by Studio Ghibli, with Miyazaki's blend of steampunk elements and fantasy. - Nano Banana 2
Nano Banana 2 8 / 10 This ranks fourth of the 12 images for its clarity, attractive worldbuilding, and strong coverage of the requested elements. More schematic machinery and a comparatively generic storybook treatment limit its distinction.
Graphic Design Minimalist logo for a sustainable coffee brand 'Evergreen Brew', single leaf motif, clean lines, vector style, white background. 'Evergreen Brew' contained as text in logo
Minimalist logo for a sustainable coffee brand 'Evergreen Brew', single leaf motif, clean lines, vector style, white background. 'Evergreen Brew' contained as text in logo - GPT Image 1.5
GPT Image 1.5 3 / 10 Ranked 13th of 13, this is the weakest interpretation because both presentation and readability suffer. The recognizable leaf and correct text cannot compensate for the wrong background and unsuitable effect-heavy styling.
Minimalist logo for a sustainable coffee brand 'Evergreen Brew', single leaf motif, clean lines, vector style, white background. 'Evergreen Brew' contained as text in logo - Nano Banana 2
Nano Banana 2 7 / 10 Ranked 5th of 13, this is a clean and distinctive response with strong prompt fidelity. Its disproportionate icon and somewhat unfinished-looking contour integration keep it below the leading designs.
Hands & Anatomy A person standing before a mirror, with their front and reflected back both visible.
A person standing before a mirror, with their front and reflected back both visible. - GPT Image 1.5
GPT Image 1.5 9 / 10 This is the strongest literal match in the set and the most successful combination of correct orientation and believable correspondence. Its straightforward composition keeps it short of an exceptional, flawless 10.
A person standing before a mirror, with their front and reflected back both visible. - Nano Banana 2
Nano Banana 2 6 / 10 This is among the stronger domestic scenes, with good anatomy and convincing environmental detail. The reversed front/back assignment remains a major limitation for this particular prompt.
Photorealistic People & Portraits A group selfie of three friends of different ethnic backgrounds smiling at the camera.
A group selfie of three friends of different ethnic backgrounds smiling at the camera. - GPT Image 1.5
GPT Image 1.5 8 / 10 Ranks 6th of 13. This is a clear, attractive selfie with strong execution, held back mainly by slightly idealized facial finishing.
A group selfie of three friends of different ethnic backgrounds smiling at the camera. - Nano Banana 2
Nano Banana 2 5 / 10 Ranks 13th of 13. The cluttered two-phone setup and failure to establish the requested selfie viewpoint outweigh otherwise competent faces and environmental rendering.
Surreal & Creative Prompts A waterfall that pours out stars and galaxies instead of water, illustrated in a cosmic fantasy style with vibrant space colors and dramatic lighting effects.
A waterfall that pours out stars and galaxies instead of water, illustrated in a cosmic fantasy style with vibrant space colors and dramatic lighting effects. - GPT Image 1.5
GPT Image 1.5 6 / 10 Rank 9 of 13. The prompt is fulfilled directly and the impact is dramatic. Excessive particle density, flattened depth, and an overbright base materially reduce the quality of execution.
A waterfall that pours out stars and galaxies instead of water, illustrated in a cosmic fantasy style with vibrant space colors and dramatic lighting effects. - Nano Banana 2
Nano Banana 2 8 / 10 Rank 5 of 13. This is a polished, convincing cosmic-fantasy illustration with strong compositional movement. Repeated celestial motifs and slightly detached galaxy discs prevent it from matching the best images' material integration.
Text in Images A book cover showing the title "Journey to Mars" along with an astronaut illustration, contemporary sci-fi design style.
A book cover showing the title "Journey to Mars" along with an astronaut illustration, contemporary sci-fi design style. - GPT Image 1.5
GPT Image 1.5 4 / 10 This ranks last because elaborate rendering cannot compensate for visibly cropping the required title. The defect directly compromises the task's emphasis on accurate, clear text integrated with imagery.
A book cover showing the title "Journey to Mars" along with an astronaut illustration, contemporary sci-fi design style. - Nano Banana 2
Nano Banana 2 8 / 10 This is a polished, commercially plausible cover with strong text accuracy and an engaging astronaut illustration. Its busier montage and repetitive ground details keep it below the top pair.
Ultra Hard Photorealistic close-up portrait of a person clearly performing the American Sign Language gesture for "thank you," hand positioned visibly in front of the chest, clear expression on face, neutral background
Photorealistic close-up portrait of a person clearly performing the American Sign Language gesture for "thank you," hand positioned visibly in front of the chest, clear expression on face, neutral background - GPT Image 1.5
GPT Image 1.5 9 / 10 This provides the strongest combination of recognizable sign positioning, anatomical clarity, and photographic polish. It ranks first because the gesture and expression are especially easy to read together.
Photorealistic close-up portrait of a person clearly performing the American Sign Language gesture for "thank you," hand positioned visibly in front of the chest, clear expression on face, neutral background - Nano Banana 2
Nano Banana 2 6 / 10 Excellent photographic execution cannot fully compensate for an unclear sign and a less neutral setting. It ranks sixth, below the closer near-face interpretation but above the explicit hand-over-heart poses.

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