Nano Banana 2 vs Seedream 5 Pro for Image Generation
The choice depends on the task. Seedream 5 Pro performed better for material rendering, anatomy, counting, advertising composition and garment transfer. Nano Banana 2 led on typography, reference-based edits, text replacement, relighting, outpainting and product preservation, while both matched on structured UI graphics.
Side-by-side facts
| Feature | Nano Banana 2 | Seedream 5 Pro |
|---|---|---|
| Developer | ByteDance | |
| Availability on Banana Pie | Available now | Available now |
| Credits from | 40 credits | 25 credits |
| Max resolution | 4K | 2K |
| Reference images | Up to 8 | Up to 8 |
Scenario by scenario
Same prompt. Two models. Judge the difference in the published images below.
Product material and lighting
Better here: Seedream 5 ProRIGHT follows the material and reflection requirements more convincingly overall, with a cleaner single-product presentation, a clearer half fill, and a restrained coherent reflection.
- Exactly one transparent rectangular perfume bottle is visible, with no text, logo, or extra objects: RIGHT does better. Both show one upright rectangular bottle and no visible text or logo, but LEFT includes a conspicuous bottle-shaped ghost reflection to the right, while RIGHT keeps the single bottle and its reflection visually unambiguous.
- The bottle is visibly filled halfway with amber liquid: RIGHT does better. Its liquid line sits clearly near the midpoint of the bottle's main chamber; LEFT appears filled somewhat above halfway.
- The glass refraction and the reflection on the wet black stone are physically coherent: RIGHT does better. Its short, vertically aligned reflection follows naturally beneath the bottle, while LEFT has a detached bottle-shaped reflection at right plus a strong sprawling amber caustic that is not subtle.
- Upper-left lighting produces consistent highlights and a plausible contact shadow: LEFT does better. The bright upper-left illumination and shadow extending toward the lower right establish the requested direction clearly; RIGHT's lighting is more frontal and centered, making the upper-left direction less distinct.
Prompt & settings used
Prompt
A premium product photograph of exactly one transparent rectangular perfume bottle, half filled with amber liquid, standing upright on wet black stone. Light comes from the upper left, creating coherent refraction, a contact shadow, and one subtle reflection. No text, logo, plants, or extra objects.
Multilingual typography
Better here: Nano Banana 2Left wins narrowly because both outputs meet the text and color requirements exactly, while its spacing appears slightly more balanced.
- Exactly four centered text lines and no additional text: Tie. Both posters visibly contain only four centered lines, with no extra text.
- Exact wording and order: Tie. Both render "MOONLIGHT MARKET", "月光市集", "18 OCT", and "RIVER HALL" in the requested order.
- Specified text colors: Tie. In both posters, "月光市集" is red while "MOONLIGHT MARKET", "18 OCT", and "RIVER HALL" are black.
- Legibility, spacing, and alignment: Left does slightly better. Both are legible and centered, but the left poster has a more balanced vertical progression; on the right, "MOONLIGHT MARKET" and "月光市集" sit relatively close together while the lower lines form a tighter separate group.
Prompt & settings used
Prompt
Design a clean cream-colored vertical event poster. Show exactly four centered text lines and no other text: "MOONLIGHT MARKET", "月光市集", "18 OCT", and "RIVER HALL". Render "月光市集" in red and all other lines in black.
Human anatomy and contact
Better here: Seedream 5 ProRight better satisfies the anatomy-focused prompt: it shows clearer finger structure and more plausible hand-to-clay contact while retaining an unmistakable pottery-wheel scene.
- Exactly two fully visible hands are present, with no extra hands or people: Tie. Both images visibly show one adult potter and exactly two hands, with no additional hands or people.
- Each hand has exactly five distinct, naturally formed fingers: Right does better. The right image presents five discernible digits on each hand, although some are partially overlapped by the pose; the left potter's hand inside the bowl has ambiguous, irregularly separated fingers.
- The fingers, joints, and contact with the clay are anatomically plausible: Right does better. Its fingers have coherent joints and believable pressure against the inner and outer bowl walls. The left inner hand has awkwardly elongated and uneven digits with less convincing attachment and contact.
- The clay bowl, spinning wheel, and shaping action are clearly recognizable: Tie. Both clearly depict a formed clay bowl centered on a pottery wheel, with one hand inside and one outside shaping the wall.
Prompt & settings used
Prompt
A photorealistic close-up of an adult potter shaping a clay bowl on a spinning wheel. Both hands are fully visible, each with five natural fingers touching the clay. No other people or hands. Soft window light.
Counting and attribute binding
Better here: Seedream 5 ProRIGHT follows all four requirements, while LEFT introduces additional background objects despite otherwise matching the requested counts and attributes.
- Object count and placement: tie; both images visibly show exactly three red cubes in a row on the left, two blue spheres on the right, and one yellow mug centered behind the foreground objects.
- Attribute binding: tie; both images clearly depict red wooden cubes with visible grain, translucent blue glass spheres, and a yellow ceramic mug.
- Mug handle direction: tie; the mug handle is clearly visible on the right side in both images.
- No additional objects or text: right does better; the right image contains only the requested objects against a plain setting, while the left image visibly includes blurred background items, including a plant and its container. Neither image contains visible text.
Prompt & settings used
Prompt
On a matte gray table, exactly three red wooden cubes form a row on the left, exactly two blue glass spheres sit on the right, and one yellow ceramic mug stands centered behind them. The mug handle points right. No other objects or text.
Advertising composition
Better here: Seedream 5 ProRight follows the requested advertising composition more precisely, especially by avoiding the extra "AERO" text while keeping every required element clear and fully visible.
- Exactly one silver shoe and orange trail: Right does better. It clearly shows one silver shoe in the lower-right, with an orange trail starting at the bottom-left and curving upward. Left also has one shoe and the required trail, but the shoe occupies more of the lower center as well as the right.
- Only visible text: Right does better. Right contains only "RUN LIGHT" and "42 KM", both spelled correctly. Left contains "RUN LIGHT" and "42 KM" but also visibly renders "AERO" on the shoe tongue.
- Top spacing and headline placement: Tie. Both leave a visibly uncluttered area at the top and place "RUN LIGHT" in the upper-left directly beneath that empty space.
- Visibility and hierarchy: Right does better. Its shoe, orange trail, "RUN LIGHT" headline, and round "42 KM" badge are all fully visible and cleanly separated. Left also has a strong hierarchy, but its large shoe and badge create a more crowded lower-right composition.
Prompt & settings used
Prompt
Create a vertical social ad for a fictional running shoe named AERO. Keep the top 15 percent empty. Directly below it, place the headline "RUN LIGHT" in the upper-left. Show exactly one silver shoe in the lower-right, an orange trail curving from the bottom-left, and a round badge reading "42 KM". No other shoes or text.
Structured UI graphic
Depends on the taskBoth images fully satisfy the requested structure and visible text, with only minor stylistic differences that do not affect the rubric.
- Title and columns: Tie. Both render the exact title "CHOOSE YOUR PLAN" and exactly three columns labeled "STARTER", "PRO", and "TEAM".
- Rows: Tie. Every column in both images contains exactly three aligned rows labeled "PROJECTS", "STORAGE", and "SUPPORT".
- Buttons: Tie. Every column in both images has exactly one blue button labeled "SELECT".
- Alignment and extra content: Tie. Both use three evenly spaced, consistently aligned columns and show no additional columns or text.
Prompt & settings used
Prompt
Create a clean horizontal pricing comparison graphic titled "CHOOSE YOUR PLAN". Use exactly three equal columns labeled "STARTER", "PRO", and "TEAM". Under each column, show exactly three aligned rows labeled "PROJECTS", "STORAGE", and "SUPPORT", followed by one blue button labeled "SELECT". White background, dark navy text, no additional columns or text.
Six-reference object binding and edit
Better here: Nano Banana 2Left more faithfully performs the multi-object edit while preserving the base scene's geometry. Both bind all six references correctly, but Left is substantially closer in placement and framing.
- Mug and napkin replacement: Left does better. Its navy mug and folded striped napkin closely match the distinctive gold-rimmed mug and layered napkin references while aligning more closely with the original mug and towel footprints. Right also uses the correct objects, but its napkin is flatter and its mug is slightly displaced and enlarged.
- Orange and notebook replacement: Left does better. Both remove the pear and blue notebook and show one orange plus the mustard notebook, but Left keeps the notebook at the original right-edge position and crop much more closely; Right moves it upward and fully inside the frame.
- Two-lemon placement: The two sides are even. Each shows exactly two lemons to the right of the mug, including one leaf-bearing lemon and one plain lemon, with no additional fruit or duplicated objects.
- Base-scene preservation: Left does better. Its mug, orange, notebook, and major tabletop details retain the original normalized placement and framing more closely. Right shifts the notebook notably upward and changes several object sizes and spacing relationships.
Reference images
Prompt & settings used
Prompt
Use Reference 1 as the base tabletop scene. Replace the red mug with the exact dark navy-blue mug from Reference 2 in the same position and orientation. Replace the folded white towel with the exact green-and-white striped napkin from Reference 3 in the same folded area. Replace the green pear with exactly one orange from Reference 4 in the same position. Replace the blue notebook with the exact mustard-yellow hardcover notebook from Reference 5 in the same position. Add exactly the two lemons from Reference 6 to the right of the mug. Preserve the wooden table, camera, framing, wood grain, lighting, shadows, and all other spatial relationships from Reference 1. Do not copy the white product backgrounds from References 2–6, duplicate any asset, or add other objects.
In-image text replacement
Better here: Nano Banana 2Both outputs complete the text edit cleanly, but Left preserves the reference typography and surrounding storefront more faithfully.
- Exact text replacement: Both sides render exactly "NIGHT OWL", and the original "MORNING BEAN" is completely gone.
- No additional or malformed characters: Both sides show only "NIGHT OWL" with clean, recognizable letters and no stray marks or extra characters.
- Font, spacing, and perspective: Left is slightly closer to the reference; its tall sans-serif lettering, generous tracking, word spacing, and alignment follow the original sign more faithfully, while Right's lettering appears somewhat tighter.
- Material, lighting, and scene preservation: Left does better; the sign's green wood grain, cast shadows, storefront geometry, windows, door, planter, and bench remain more closely aligned with the reference. Right shows slightly more noticeable shifts in the storefront proportions and placement.
Reference images
Prompt & settings used
Prompt
Replace only the sign text with exactly "NIGHT OWL". Preserve the original font style, spacing, perspective, sign material, lighting, and everything else.
Multi-reference identity and garment transfer
Better here: Seedream 5 ProRIGHT has the overall edge because its jacket is materially closer to the garment reference and is integrated more cleanly, while LEFT preserves the original person and framing somewhat better.
- Identity, expression, hair, pose, body proportions, and framing: LEFT is closer. It retains the original face shape, direct expression, hair volume, hand position, and portrait framing more faithfully; RIGHT narrows and subtly changes the face and shifts the hands farther downward.
- Jacket material, color, collar, buttons, pockets, and sleeve patch: RIGHT does better. Its light-blue denim, cream sherpa collar, bronze hardware, chest-pocket construction, and red sleeve patch are cleaner and closer to Reference 2. LEFT adds conspicuous distressed white marks that are absent from the reference jacket.
- Full replacement without mannequin or product background: Both are even. Each fully removes the black suit jacket and keeps the original gray interior scene without importing the white product background or mannequin form.
- Physical coherence of hands, fit, occlusion, shadows, and lighting: RIGHT is slightly better. The jacket hangs more evenly, its seams and front panels remain more consistent, and the sleeves meet the wrists naturally. LEFT has a warped, uneven lower hem and less consistent front-panel construction, though both integrate the hands and scene lighting credibly.
Reference images
Prompt & settings used
Prompt
Use the portrait in Reference 1 for the person and the isolated jacket in Reference 2 for the garment. Dress the person from Reference 1 in the exact jacket shown in Reference 2. Preserve the person's identity, face, expression, skin, hair, hands, pose, body proportions, background, framing, and lighting from Reference 1. Preserve the jacket's material, color, collar, buttons, pockets, and sleeve patch from Reference 2. Do not copy the ghost mannequin or white product background.
Coherent scene relighting
Better here: Nano Banana 2Left provides the stronger coherent relighting, with more convincing golden-hour illumination and more complete directional shadow behavior throughout the room. Both preserve the scene contents similarly.
- Warm golden-hour light clearly enters from the left window: Left does better. Strong warm sunlight visibly streams from the left window across the sofa, rug, table, wall, and floor; Right is also warm and directional, but its strongest illumination is concentrated in rectangular patches on the rear wall.
- Highlights and shadow directions respond coherently to the new light source: Left does better. The table and sofa cast long shadows toward the lower right, window-frame shadows cross the floor, foliage shadows fall across the sofa, and the lamp casts a shadow to the right. Right has coherent wall shadows from the plant, window, and lamp, but directional shadows around the table and rug are less developed.
- The result is more than a uniform yellow color filter: Left does better. It combines warm highlights with clearly separated shaded areas and multiple object-specific cast shadows. Right also goes beyond a filter, though more of its room surfaces share a broadly warm tint.
- No furniture or decor is moved, added, removed, or redesigned: The two are roughly even. Both retain the same window, plant and pot, sofa, coffee table, rug, and floor lamp in matching overall positions, while both introduce small visible changes to proportions and upholstery or furniture details compared with the reference.
Reference images
Prompt & settings used
Prompt
Change the lighting to warm golden-hour sunlight entering from the left window. Do not move, add, remove, or redesign any object. Update highlights and shadows coherently.
Cross-ratio outpainting
Better here: Nano Banana 2LEFT better preserves the centered reference while extending it into a convincing landscape. RIGHT produces a clean expansion but changes the scale and placement of the original composition more noticeably.
- 16:9 landscape with natural side extensions: Both outputs are 16:9 and plausibly continue the sky, ocean, shoreline, and sand across both sides; neither has a clear advantage here.
- Complete original centered without cropping or stretching: LEFT is better. Its horizon, cabin roof, cabin width, and foreground align closely with the proportions expected when the square reference is centered at full output height. RIGHT makes the cabin and central composition slightly smaller and shifts them vertically, indicating more alteration of the original framing.
- Original cabin, shoreline, and internal composition unchanged: LEFT is better. The cabin's size, siding, door, supports, shoreline levels, and shadow remain closer to the reference. RIGHT visibly narrows the cabin and changes its scale relative to the surrounding beach and sky.
- No visible seams, mirrored filler, or repeated objects: Both are strong. The added clouds, waves, and beach textures flow naturally without obvious hard boundaries, mirrored patterns, or duplicated objects.
Reference images
Prompt & settings used
Prompt
Expand the canvas to a 16:9 landscape by naturally continuing the beach, ocean, and sky on both sides. Keep the complete original image centered without cropping, stretching, letterboxing, or modifying it.
Product preservation across scene change
Better here: Nano Banana 2Left preserves the product well while delivering the more convincing scene integration, especially through the explicit basketball setting, reflected shoe, and coherent dusk color cast. Right is slightly stronger in exact shoe geometry, but Left has the clearer overall advantage.
- Wet outdoor basketball court at dusk: Left does better. The hoop, painted court lines, chain-link fence, wet pavement, and dark pink-purple dusk sky establish the requested setting more immediately; Right also shows a wet fenced court at dusk, but the basketball context is less explicit.
- Silhouette, sole geometry, stitching, materials, and camera angle: Right does slightly better. Its toe profile, layered sole, front textured bumper, panel stitching, leather-like upper, and three-quarter side angle remain closer to the reference, while Left makes the shoe somewhat flatter and more side-on.
- Black geometric side mark: The two are essentially even. Both retain the same readable three-armed black geometry, with a short left arm, rising upper arm, and longer descending arm matching the reference closely.
- Contact shadow, wet-surface reflection, and dusk lighting: Left does better. The shoe has grounded contact, a clear reflection aligned beneath it, and warm sunset light transitioning into cool dusk tones across the shoe and court. Right has plausible contact and a broken puddle reflection, but the nearly pure-white shoe appears less integrated with the surrounding dusk illumination.
Reference images
Prompt & settings used
Prompt
Place the sneaker on a wet outdoor basketball court at dusk. Preserve the exact sneaker shape, black geometric side mark, materials, stitching, sole geometry, and camera angle. Add physically coherent contact, reflections, and dusk lighting.
Cost & latency
Nano Banana 2 starts at 40 credits, while Seedream 5 Pro starts at 25 credits, so Seedream 5 Pro has the lower entry cost. In this run, observed latency ranged from 57125ms to 122746ms for Nano Banana 2 and from 38569ms to 141015ms for Seedream 5 Pro; these are small-sample observations, not benchmark figures.
How we compared & disclosure
We used one fixed prompt per scenario with each model and published the selected outputs. Public images carry a Banana Pie watermark. Banana Pie sells paid access to both Nano Banana 2 and Seedream 5 Pro.
Banana Pie sells paid access to this model alongside other models in one studio. Our verdicts come from tests run through the same pipeline our users get.