6 Same-Prompt AI Image Tests

Seedream 5.0 Pro vs Nano Banana Pro

We tested both models with the same prompts across portraits, product ads, typography, infographics, multi-reference composition, and targeted image editing.

See the side-by-side results and choose the better model for your workflow.

Real test results

See the Difference Before the Details

View all six tests →

Photorealistic Portrait

Seedream 5.0 Pro photorealistic portrait test result
Seedream 5.0 Pro
Nano Banana Pro photorealistic portrait test result
Nano Banana Pro

Product Advertising

Seedream 5.0 Pro product advertising test result
Seedream 5.0 Pro
Nano Banana Pro product advertising test result
Nano Banana Pro

Knowledge-Based Infographic

Seedream 5.0 Pro knowledge-based infographic test result
Seedream 5.0 Pro
Nano Banana Pro knowledge-based infographic test result
Nano Banana Pro

Comparison test overview

6 Same-Prompt Tests
12 Generated Results
Text-to-Image + Editing
Updated July 2026

Seedream 5.0 Pro

  • Structured commercial visuals
  • Clean targeted revisions in our test
  • One-time credits on Seedream50pro.com
  • 1K and 2K output on this site

Nano Banana Pro

  • Knowledge-aware generation
  • Larger reference workflows on supported products
  • Google ecosystem access
  • Up to 4K on supported products

30-second verdict

Seedream 5.0 Pro vs Nano Banana Pro: Quick Verdict

Seedream performed better in our structured infographic and clean background-replacement tests. Nano Banana Pro produced stronger portrait contrast and kept more original scene elements during editing. Both models performed well in product advertising and English typography.

Choose Seedream 5.0 Pro if you need

  • Cleaner structured layouts
  • Controlled background replacement
  • Product and commercial visuals
  • One-time credits that never expire
  • An eligible free 1K test without a credit card

Choose Nano Banana Pro if you need

  • Stronger contrast and more dramatic rendering
  • More original scene details preserved in our edit test
  • Google Search-grounded workflows
  • More supported reference inputs
  • Up to 4K on supported Google products

Quick comparison

Seedream 5.0 Pro vs Nano Banana Pro at a Glance

Based on our six tests and currently published product specifications.

Seedream 5.0 Pro and Nano Banana Pro quick comparison by category
CategorySeedream 5.0 ProNano Banana ProBest choice
Structured infographicCleaner layout in our testStronger direction but more crowdedSeedream 5.0 Pro
Background replacementCleaner complete replacementPreserved more original objectsDepends on the goal
English typographyCorrect in tested examplesCorrect in tested examplesTie
Product advertisingRicher environmentCleaner hero compositionStyle preference
Reference inputsUp to 10 on this platformUp to 14 on supported productsNano Banana Pro
Output resolution1K and 2K on this platformUp to 4K on supported productsNano Banana Pro
Search groundingNot available on this platformAvailable on supported Google productsNano Banana Pro
Payment modelOne-time creditsSubscription or API dependentDepends

Comparison scope: This page compares Seedream 5.0 Pro with Nano Banana Pro (Gemini 3 Pro Image). Seedream 5.0 Lite and Preview are different models, so their prices, speeds, and specifications are not used as Pro data.

Platform note: Seedream50pro.com currently supports prompt-based generation, up to 10 reference images, multiple aspect ratios, and 1K or 2K output. Some official Seedream editing controls are not exposed on this platform.

Six same-prompt tests

Seedream 5.0 Pro vs Nano Banana Pro Image Quality Tests

Each pair uses the same prompt, source images, aspect ratio, and resolution. Each result below describes only the images shown in that test.

Photorealistic Portrait

Same prompt

What we tested

Skin texture, hands, studio lighting, depth of field, and overall portrait mood.

Prompt

A photorealistic editorial portrait of a 42-year-old Japanese ceramic artist in her sunlit studio, standing beside shelves of handmade bowls. Natural skin texture, a few loose strands of hair, clay dust on her indigo apron, soft window light from the left, subtle shadows, 85mm lens, eye-level medium close-up, shallow depth of field, muted earth tones. Keep both hands anatomically correct. No beauty retouching.

Seedream 5.0 Pro
Seedream 5.0 Pro result for photorealistic portrait
Nano Banana Pro
Nano Banana Pro result for photorealistic portrait
ResultStyle preference

Seedream 5.0 Pro

Softer light and a warmer, more natural mood.

Nano Banana Pro

Stronger facial detail and contrast.

Shared finding

Both models followed the portrait prompt well.

Product Advertising

Same prompt

What we tested

Product geometry, label text, glass, reflections, lighting, and advertising composition.

Prompt

Create a premium advertising image for a clear glass perfume bottle named AURELIA. Place the bottle on dark green marble with a small pool of water and one white magnolia flower. Show accurate glass refraction, crisp label text, realistic reflections, and a soft gold rim light. Add the exact headline “SCENT, REFINED.” in elegant uppercase type at the top. Use a square 1:1 composition with clean space around the product.

Seedream 5.0 Pro
Seedream 5.0 Pro result for product advertising
Nano Banana Pro
Nano Banana Pro result for product advertising
ResultClose — style preference

Seedream 5.0 Pro

Created a richer, more environmental product scene.

Nano Banana Pro

Produced a cleaner hero composition with stronger rim lighting.

Shared finding

Both rendered AURELIA and “SCENT, REFINED.” correctly.

Typography Poster

Same prompt

What we tested

Exact English text, spelling, type hierarchy, grid structure, and negative space.

Prompt

Design a bold Swiss-style event poster on an off-white background. Use the exact headline “DESIGN FOR TOMORROW” in large black condensed type. Add the exact details “SEPTEMBER 18 — BROOKLYN” and “DOORS 6:30 PM” in smaller type. Use a strict grid, sharp alignment, one cobalt-blue circle, one red diagonal line, and generous negative space. Keep every word readable and spelled exactly as written. Use a square 1:1 format.

Seedream 5.0 Pro
Seedream 5.0 Pro result for typography poster
Nano Banana Pro
Nano Banana Pro result for typography poster
ResultClose

Seedream 5.0 Pro

Used more negative space and a restrained layout.

Nano Banana Pro

Created a stronger grid and clearer type hierarchy.

Shared finding

Both rendered every requested line correctly.

Knowledge-Based Infographic

Same prompt

What we tested

Information hierarchy, required labels, three process steps, and diagram clarity.

Prompt

Create a clear educational infographic titled “HOW A SOLAR ECLIPSE WORKS.” Show the Sun, Moon, and Earth in the correct order. Label the umbra, penumbra, total eclipse path, and partial eclipse region. Add three short steps: “1. The Moon moves between Earth and the Sun.” “2. The Moon casts a shadow on Earth.” “3. Viewers in the umbra see totality.” Use a dark navy background, clean vector-style diagrams, white labels, and yellow highlights. Use a square 1:1 layout. Keep the science and all text accurate.

Seedream 5.0 Pro
Seedream 5.0 Pro result for knowledge-based infographic
Nano Banana Pro
Nano Banana Pro result for knowledge-based infographic
ResultSeedream 5.0 Pro

Seedream 5.0 Pro

Produced the cleaner information hierarchy.

Nano Banana Pro

Used stronger arrows and visual direction.

Shared finding

Both included the main eclipse stages and labels.

Multi-Reference Composition

Same prompt

What we tested

Combining a person, desk, laptop, and green lamp into one realistic office scene.

Prompt

Use all provided reference images to create one realistic lifestyle scene. Place the same person from Reference 1 at the oak desk from Reference 2, using the silver laptop from Reference 3, with the green desk lamp from Reference 4 on the left. Preserve the person’s face, hair, clothing, and body proportions. Preserve each product’s shape, color, logo, and material. Use warm late-afternoon light, a modern home office, natural perspective, and editorial photography. Use a square 1:1 composition.

Seedream 5.0 Pro
Seedream 5.0 Pro result for multi-reference composition
Nano Banana Pro
Nano Banana Pro result for multi-reference composition
ResultInconclusive

Seedream 5.0 Pro

Created a warmer, more natural-looking scene.

Nano Banana Pro

Created a more formal office composition.

Shared finding

The source images are not displayed, so reference preservation cannot be scored.

Targeted Image Edit

Same prompt

What we tested

Bottle and label preservation, full background replacement, lighting, and scene continuity.

Prompt

Edit the provided product photo. Keep the bottle, cap, label, logo, size, position, and proportions unchanged. Replace only the background with a bright modern bathroom made of pale travertine. Add soft daylight from the left, a subtle reflection beneath the bottle, and a small blurred eucalyptus branch in the far background. Match the new light and shadows to the original product. Do not change, rewrite, or remove any label text.

Input
Input image for targeted image edit
Seedream 5.0 Pro
Seedream 5.0 Pro result for targeted image edit
Nano Banana Pro
Nano Banana Pro result for targeted image edit
ResultDepends on the goal

Seedream 5.0 Pro

Made a cleaner, more complete background replacement.

Nano Banana Pro

Preserved more original objects, including the sponge and stones.

Shared finding

Both preserved the bottle and label.

Overall results

Overall Test Scorecard

A compact summary of the six image pairs shown above.

Overall scorecard for six Seedream 5.0 Pro and Nano Banana Pro tests
TestResultMain observation
Photorealistic portraitStyle preferenceSofter mood vs. stronger contrast
Product advertisingCloseRicher scene vs. cleaner hero image
Typography posterCloseBoth rendered the requested English text
Structured infographicSeedream 5.0 ProCleaner information hierarchy
Multi-reference compositionInconclusiveSource references are not displayed
Targeted image editDepends on goalCleaner replacement vs. stronger preservation

Want to run your own comparison? Explore Seedream 5.0 Pro prompts or open the image generator.

Official capabilities

Capabilities We Did Not Test

These capabilities come from official product materials but were not evaluated in the six tests above. Availability depends on the product or API you use.

Seedream 5.0 Pro

  • Point, lasso, box, and sketch-guided editing on supported platforms
  • Color and material replacement
  • Layer separation
  • Multi-image fusion
  • Multilingual visual generation
  • These controls are not currently exposed on Seedream50pro.com

Nano Banana Pro

  • Google Search grounding on supported products
  • Gemini reasoning and real-world knowledge
  • Multilingual text and localization
  • Up to 14 standard image inputs on supported products
  • Up to 4K output on supported products

Choose by use case

Which Model Should You Choose?

Recommended AI image model by workflow
Your workflowRecommended starting pointWhy
Structured infographicSeedream 5.0 ProCleaner layout in our test
Clean background replacementSeedream 5.0 ProReplaced more of the original scene
Preserve original scene elementsNano Banana ProKept more original objects
Google-grounded visual informationNano Banana ProSupported Search grounding
Product adsTest bothDifferent but competitive compositions
English typographyTest bothBoth rendered the requested text correctly
Multi-reference identity preservationTest bothCurrent test is not conclusive

Pricing and access

Seedream 5.0 Pro vs Nano Banana Pro Pricing and Access

Seedream 5.0 Pro and Nano Banana Pro pricing and access comparison
Access detailSeedream50pro.comNano Banana Pro
Free access5 credits for eligible new usersDepends on the Google product
Free outputOne successful 1K imageUsage limits vary
Paid accessOne-time credit packsSubscription or API billing
Credit expirationPurchased credits never expireDepends on the access point
Output1K and 2KUp to 4K on supported products
Starting price$9.90 for 160 creditsCheck current Google pricing

Final verdict

Which Is Better: Seedream 5.0 Pro or Nano Banana Pro?

Start with Seedream 5.0 Pro

Seedream 5.0 Pro is the stronger starting point for structured commercial visuals, cleaner background replacement, and workflows that benefit from controlled image revisions.

Start with Nano Banana Pro

Nano Banana Pro is the stronger starting point for Google-grounded information, larger reference workflows, supported 4K output, and users already working inside the Gemini ecosystem.

For portraits, product advertising, and English typography, both models produced competitive results in our tests. The better choice depends on the visual style you prefer and how much of the original scene you want to preserve.

Common questions

Seedream 5.0 Pro vs Nano Banana Pro FAQ

Is Seedream 5.0 Pro better than Nano Banana Pro?

There was no single winner in our six tests. Seedream often produced cleaner or warmer layouts. Nano Banana Pro often produced stronger contrast or kept more of the original scene. The better choice depends on your task.

Which model is better for image editing?

In our background-replacement test, both models preserved the bottle and label. Seedream made a cleaner replacement. Nano Banana Pro kept more of the original scene. ByteDance also describes point, lasso, and sketch editing on supported platforms, but those controls are not available on this site.

Which model is better for text in images?

Both models rendered the requested English text correctly in our product-ad and poster tests. Google also promotes multilingual text and localization as Nano Banana Pro features.

Which model is better for product advertising?

Both produced competitive product ads in our test. Seedream created a richer environment. Nano Banana Pro created a cleaner hero composition with stronger rim lighting. The better result depends on the visual style you prefer.

Which model is better for infographics?

Both models included the main labels and steps in our eclipse test. Seedream produced the cleaner layout. Nano Banana Pro used stronger visual direction, but the result was more crowded.

Which model supports more reference images?

Seedream50pro.com accepts up to 10 reference images. Google states that supported Nano Banana Pro products can accept up to 14 inputs.

Can I try Seedream 5.0 Pro for free?

Eligible new users may receive 5 signup credits. That is enough for one successful 1K generation. No credit card is required.

Does Seedream 5.0 Pro support 4K output?

Seedream50pro.com currently offers 1K and 2K generation. Nano Banana Pro promotes up to 4K through supported Google products.

Test Seedream 5.0 Pro with Your Own Prompt

Eligible new users may receive 5 signup credits—enough for one successful 1K generation without entering a credit card.