Head to head: Bytedance Seedream V4.5 Edit vs Google: Nano Banana 2 (Gemini 3.1 Flash Image)
Bytedance Seedream V4.5 Edit vs Google: Nano Banana 2 (Gemini 3.1 Flash Image)
By Ryan Merket · Published
This matchup tests two image editors across tightly specified scenes, visual styles, layouts, text, counting, and fine material detail. The results turn on a practical tradeoff: following the full brief versus making a few textures especially convincing.
Google: Nano Banana 2 (Gemini 3.1 Flash Image) leads the saved aggregate **65.4 to 54.3**, winning **7 of 8 tasks** with no ties. That makes this a decisive editorial result on this sample—not a claim about statistical confidence or broad capability superiority. Nano Banana 2’s edge is strongest when the prompt asks for a complete, legible composition. It won on the limited-palette signal-box scene, ukiyo-e style, isometric room, canal courier, multi-line poster text, exact cup count, and night-depot study. Across those tasks, it more often made the requested scene readable at a glance; its poster text and seven-cup row were particularly clear. Seedream V4.5 Edit’s one win was the Survey Bike Microdetail task. Its close framing made stitching, salt-crusted gloves, braided lines, engine hardware, and lichen stand out, while Nano Banana 2’s wider view gave those textures less emphasis. Seedream also had merits elsewhere—such as placing the room’s lamp correctly—but its cropped or less disciplined compositions cost it against the requested overall layouts. **Verdict: Nano Banana 2 is the clear pick in this head-to-head, while Seedream is the more compelling choice for this sample’s focused microdetail brief. This assessment applies only to the saved task sample.**
Signal Box Limited Palette
A watercolor illustration of a 1960s tram control cabin overlooking a rainy junction, composed strictly in the named palette "Mariner's Ledger": indigo, rust red, tar black, fog gray, parchment cream, and oxidized teal only, with no other colors anywhere in the image; the conductor in a short cape leans over a brass switchboard while two trams cross below, reflections trembling in puddles, balanced poster-like composition with soft wet-on-wet edges and precise linework, 16:9
OpenAI: GPT-6 Luna: Model B more directly fulfills the scene with a clearly readable conductor leaning over the switchboard, two trams, and rain-softened reflections in a balanced poster-like composition. Model A has appealing watercolor detail, but the oversized title and palette swatches distract from the scene, and both images introduce colors beyond the strict named palette. (Second judge pass, order swapped — scores are the average of both: Model B better matches the requested balanced watercolor scene, with a | Anthropic: Claude Fable 5.1: Model B delivers a cleaner, more disciplined ta…
Named art style
A ukiyo-e woodblock print of a fishing boat riding a large cresting wave at dawn, faithful to the flat color planes, bold outlines, and stylized foam of the tradition, muted indigo and cream palette.
OpenAI: GPT-6 Luna: Model B more convincingly captures the ukiyo-e woodblock tradition through its bold outlines, flat indigo-and-cream planes, and stylized foam, while clearly showing a fishing boat amid a towering cresting wave at dawn. Model A has a striking wave and attractive dawn palette, but its detailed boat and rigging feel less faithful to the requested print style. (Second judge pass, order swapped — scores are the average of both: Model B strongly captures the ukiyo-e woodblock tradition with flat indig | Anthropic: Claude Fable 5.1: Model B is unmistakably ukiyo-e with bold outli…
Spatial layout
A clean isometric illustration of a bedroom: a bed against the LEFT wall, a round rug centered on the floor, a desk under the WINDOW on the back wall, and a floor lamp in the FRONT-RIGHT corner. Flat-vector style, consistent perspective.
OpenAI: GPT-6 Luna: Model B follows the isometric flat-vector style and arranges the bed, centered rug, and desk beneath the back-wall window clearly, though the lamp sits somewhat farther back than the requested front-right corner. Model A includes all the requested furnishings and places the lamp correctly, but its close, cropped, near-frontal perspective departs from the isometric composition. (Second judge pass, order swapped — scores are the average of both: Model B closely matches the requested isometric layo | Anthropic: Claude Fable 5.1: Model A places every item correctly (bed left,…
Canal Sprint Courier
A photorealistic electric hydrofoil mail boat marked "Delta Parcel 17" knifes through a narrow industrial canal in Rotterdam, captured mid-turn at water level as the hull lifts on foils, spray shears sideways in glittering sheets, a courier in a lime drysuit braces against the cockpit frame, gulls scatter from a rusted mooring post, and motion blur streaks the background warehouses while the boat stays tack-sharp; late-afternoon crosslight, cinematic sports photography, low three-quarter angle, 16:9
OpenAI: GPT-6 Luna: Model B gives a clearer view of the boat lifted on its foils, the industrial canal, scattered gulls, and the correctly rendered “Delta Parcel 17” marking. Model A has striking close-up action and light, but its extreme crop obscures more of the scene and makes the boat lettering less clear. (Second judge pass, order swapped — scores are the average of both: Model B captures more of the requested scene in one coherent frame, including the turning hydrofoil, courier, canal warehouses, scattering g | Anthropic: Claude Fable 5.1: Model A delivers a sleeker, more glittering spo…
Legible multi-line text
A minimalist event poster with three lines of crisp, correctly-spelled text stacked and centered: 'NIGHT MARKET' large on top, 'Fridays · 6–11pm' in the middle, 'Riverside Pier 4' at the bottom, on a deep navy background, clean sans-serif, subtle grain.
OpenAI: GPT-6 Luna: Model A has enormous clipped, overlapping text and fails to render the requested lines legibly. Model B presents all three lines correctly and clearly on a navy poster, with a clean centered layout, though the spacing is quite generous. (Second judge pass, order swapped — scores are the average of both: Model B renders all three requested lines crisply and correctly on a deep navy, subtly textured background, with a clean centered layout. Model A uses the right general colors and wording, but th | Anthropic: Claude Fable 5.1: Model A renders all text correctly but crops 'N…
Exact counting
A clean overhead flat lay on white marble of EXACTLY seven identical espresso cups arranged in a single straight row, each clearly separate and individually countable, even soft lighting, 16:9.
OpenAI: GPT-6 Luna: Model A shows seven espresso cups in a straight row, but the cups are cropped at the right edge and sit awkwardly low in the frame. Model B presents seven clearly separate cups in a neat row on white marble, though the added saucers and spoons depart slightly from the requested simplicity. (Second judge pass, order swapped — scores are the average of both: Model B presents exactly seven clearly separated cups in a balanced overhead row on white marble. Model A also shows seven cups, but they are | Anthropic: Claude Fable 5.1: Both Model A and Model B render exactly seven e…
Survey Bike Microdetail
An ultra-detailed technical still life of a custom expedition motorcycle parked beside a windswept basalt cliff, focused on fine texture: tightly woven waxed-cotton panniers with visible stitching, salt-crusted leather gloves draped over the handlebar, machined brake rotors with tiny stamped serial numbers, braided fuel lines, bead-blasted engine casings, specks of lichen on the rock, and distant coastal grasses rendered crisp strand by strand; hyperreal studio-natural hybrid lighting, shallow angle close-up composition, 16:9
OpenAI: GPT-6 Luna: Model A better delivers the requested close-up microdetail, with clearly visible pannier stitching, salt-crusted gloves, braided lines, engine hardware, and lichen-speckled rock. Model B provides more of the motorcycle and coastal setting, but the wider framing gives less emphasis to the fine textures. (Second judge pass, order swapped — scores are the average of both: Model A makes the requested microtextures especially prominent, with detailed pannier stitching, salt-speckled gloves, lichen, e | Anthropic: Claude Fable 5.1: Model A delivers the requested microdetail far…
Night Depot Materials Study
A photorealistic nighttime scene inside a regional rail maintenance depot: the nose of a cobalt commuter train sits under harsh sodium-vapor and cool LED work lights while two mechanics inspect an opened access panel, emphasizing physically believable reflections on brushed steel tools, oily black rubber hoses, painted aluminum bodywork, varnished wood pallets, orange canvas safety straps, and varied skin tones under mixed lighting; deep realistic shadows, subtle grime, documentary-style composition, 16:9
OpenAI: GPT-6 Luna: Model B more completely captures the documentary depot scene, with two clearly visible mechanics inspecting an open train panel and convincing details like hoses, tools, pallets, grime, and mixed lighting. Model A has striking reflections and atmosphere, but the mechanics are awkwardly cropped and the composition devotes excessive space to the train and overhead lights. (Second judge pass, order swapped — scores are the average of both: Model B more completely captures the requested documentary- | Anthropic: Claude Fable 5.1: Model B delivers a more convincing documentary…
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