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Nano Banana 2.1 vs Seedream 5.0 Pro

By Elo rating, Nano Banana 2.1 is expected to win 74% of comparisons against Seedream 5.0 Pro.

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.

Nano Banana 2.1
Google
1268 Elo ±46
Rank #7 of 42 · median 22s per image · 1 refused
Not judged in the same call yet
Elo expectation: Nano Banana 2.1 wins 74%
Seedream 5.0 Pro
Bytedance
1089 Elo ±60
Rank #15 of 42 · median 110s per image · 13 refused

By category

CategoryNano Banana 2.1Seedream 5.0 ProDirect record
Anime & Cartoon Style 1446 1262 —
Architecture & Interiors 1391 1218 —
Complex Scenes 1332 1257 —
Ghibli style 1277 1194 —
Graphic Design 1193 998 —
Hands & Anatomy 1338 824 —
Photorealistic People & Portraits 1240 1074 —
Surreal & Creative Prompts 1313 1270 —
Text in Images 1058 1043 —
Ultra Hard 1313 1074 —

By criterion

CriterionNano Banana 2.1Seedream 5.0 Pro
Prompt adherence 1190 1052
Technical quality 1199 1119
Artistic merit 1222 1144
Detail execution 1208 1132
Realism & coherence 1170 1099

Side by side

Anime & Cartoon Style A Looney Tunes-inspired cartoon scene of a clever rabbit tricking a hunter.
A Looney Tunes-inspired cartoon scene of a clever rabbit tricking a hunter. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 This offers the strongest overall balance of classic style, clear humor, and polished execution. Its richer lighting and environmental finish narrowly distinguish it from the falling-hunter scene, while imperfect sign wording prevents a flawless rating.
A Looney Tunes-inspired cartoon scene of a clever rabbit tricking a hunter. - Seedream 5.0 Pro
Seedream 5.0 Pro 7 / 10 Ranks 6th of 11 despite being one of the strongest images in rendering quality. Its subdued prank and departure from classic cartoon visual language limit its success on this particular prompt.
Architecture & Interiors A photorealistic interior of a modern Scandinavian-style living room with natural light streaming through floor-to-ceiling windows. Show detailed wood textures, fabric materials, and proper light reflections.
A photorealistic interior of a modern Scandinavian-style living room with natural light streaming through floor-to-ceiling windows. Show detailed wood textures, fabric materials, and proper light reflections. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Rank 2 of 13: this is an excellent combination of Scandinavian restraint, appealing daylight, and tactile materials. Slightly softer peripheral details keep it just below the most consistently resolved image.
A photorealistic interior of a modern Scandinavian-style living room with natural light streaming through floor-to-ceiling windows. Show detailed wood textures, fabric materials, and proper light reflections. - Seedream 5.0 Pro
Seedream 5.0 Pro 6 / 10 Rank 7 of 12: the rendering itself is stronger than this overall score suggests, particularly in its textiles and wood surfaces. The missing floor-to-ceiling glazing is a major task-specific deviation and substantially lowers the holistic assessment.
Complex Scenes A family cooking together in a kitchen, each person busy with a different task.
A family cooking together in a kitchen, each person busy with a different task. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Ranks third for excellent task separation and unusually natural family interaction. Its slightly busier foreground and softer miniature details keep it below the two strongest compositions.
A family cooking together in a kitchen, each person busy with a different task. - Seedream 5.0 Pro
Seedream 5.0 Pro 8 / 10 Ranks fourth for its believable domestic atmosphere and meaningful cooperation between participants. Less efficient framing and a slightly ambiguous bowl handoff distinguish it from the stronger images.
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. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Rank 1 of 11: this is the strongest synthesis of the requested aesthetic, imaginative engineering, and sunrise atmosphere. Minor uncertainties in mechanical connections prevent 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. - Seedream 5.0 Pro
Seedream 5.0 Pro 6 / 10 Rank 7 of 11: attractive materials and a clean mechanical layout distinguish it from the lower-ranked images. Nevertheless, it is a good generic steampunk castle rather than a close match to the specifically requested visual aesthetic.
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 - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Ranks first for its economical coffee-and-leaf concept, crisp execution, and cohesive typography. It is the strongest complete logo here, with only minor ambiguity in the interior symbol.
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 - Seedream 5.0 Pro
Seedream 5.0 Pro 4 / 10 Rank 12 of 12: the clearest departure from the core minimalist brief. Its readable text and competent rendering cannot compensate for an overly illustrative, ornamented symbol.
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. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 This is the strongest image because it combines the exact requested orientation with convincing anatomy, reflection geometry, and photographic finish. Slight softness in secondary details keeps it short of a flawless score.
A person standing before a mirror, with their front and reflected back both visible. - Seedream 5.0 Pro
Seedream 5.0 Pro 3 / 10 This is the weakest response to the actual prompt because the front is entirely missing and the mirror repeats an incompatible rear view. Its polished setting prevents it from being a complete visual failure, but the central reflection test fails decisively.
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. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Rank 3 of 13: the strongest quality here is the convincing shared joy and lively environmental composition. Slight facial polishing and the middle subject's lowered gaze keep it below the two most direct, natural-looking selfies.
A group selfie of three friends of different ethnic backgrounds smiling at the camera. - Seedream 5.0 Pro
Seedream 5.0 Pro 6 / 10 Its environmental composition is excellent, and its rendering is stronger than several direct selfies. The central compositional mismatch substantially lowers the overall result: the viewer receives an outside photograph of the activity rather than the selfie.
Surreal & Creative Prompts A city skyline that forms the shape of musical notes on a staff, created in a stylized graphic design aesthetic with clean architectural lines and dramatic twilight colors.
A city skyline that forms the shape of musical notes on a staff, created in a stylized graphic design aesthetic with clean architectural lines and dramatic twilight colors. - Nano Banana 2.1
Nano Banana 2.1 9 / 10 Ranked 1 of 13. It most successfully transforms the skyline itself into musical architecture, combining exceptional conceptual execution with a polished, cohesive graphic style.
A city skyline that forms the shape of musical notes on a staff, created in a stylized graphic design aesthetic with clean architectural lines and dramatic twilight colors. - Seedream 5.0 Pro
Seedream 5.0 Pro 7 / 10 Rank 6 of 12: One of the most polished scenic renderings, but only a partial answer to the core visual interpretation. It falls below the architectural-note designs because the music remains decoration rather than transformed skyline.
Text in Images A red stop sign on a street corner displaying the word "STOP", photorealistic urban photography.
A red stop sign on a street corner displaying the word "STOP", photorealistic urban photography. - Nano Banana 2.1
Nano Banana 2.1 7 / 10 Ranked 7th of 13, this is a competent and coherent urban photograph with accurate primary signage. Busy visual overlaps and less refined secondary detail limit its distinction.
A red stop sign on a street corner displaying the word "STOP", photorealistic urban photography. - Seedream 5.0 Pro
Seedream 5.0 Pro 5 / 10 This is the weakest result for the task's emphasis on standard typography and sign construction. Although STOP is readable and the setting is recognizable, the prominent three-dimensional lettering is a major subject-level flaw.
Ultra Hard Photorealistic aerial photograph clearly showing the edge of the Earth from space, capturing realistic curvature, atmosphere, and sunlight reflections
Photorealistic aerial photograph clearly showing the edge of the Earth from space, capturing realistic curvature, atmosphere, and sunlight reflections - Nano Banana 2.1
Nano Banana 2.1 8 / 10 This is a strong photographic interpretation with convincing curvature and varied cloud coverage. Heavy flare and washed-out highlights prevent it from reaching the leading tier.
Photorealistic aerial photograph clearly showing the edge of the Earth from space, capturing realistic curvature, atmosphere, and sunlight reflections - Seedream 5.0 Pro
Seedream 5.0 Pro 4 / 10 Ranks 12th of 12. Attractive surface rendering cannot overcome the fundamental perspective failure in Earth's flattened silhouette.

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