Seedream 4.5 vs Nano Banana Pro
With the rapid advancement of AI image generation, choosing the right model has become critical for designers, marketers, and small businesses. This guide helps creators understand which AI image model fits their creative and commercial needs, highlighting capabilities, strengths, limitations, and practical use cases. We also provide example prompts for testing and benchmarking.
Note: X-Design integrates both Seedream 4.5 and Nano Banana Pro, leveraging the strengths of each model to support creators, businesses, and product design teams. The platform offers access to highly creative and stylized outputs as well as photorealistic and production ready visuals in a single unified workflow. Whether you are exploring imaginative concept art, developing visual assets for a local shop, or producing commercial grade product images, X-Design automatically applies the model that is most suitable for the task.
Introduction: Why Compare Seedream 4.5 and Nano Banana Pro?
- Seedream 4.5: Developed by ByteDance, Seedream 4.5 is optimized for creative flexibility, multi-image reference blending, and batch generation. It is ideal for scenarios requiring stylized outputs, artistic effects, and experimentation with multiple references. Official site
- Nano Banana Pro: Part of Google DeepMind’s Gemini series, Nano Banana Pro focuses on photorealistic, production-ready visuals, emphasizing materials, lighting, and commercial-ready renderings. It excels in e-commerce, advertising, and product photography scenarios. Official site
These two models reflect different design philosophies: Seedream 4.5 favors creative, multi-reference, and batch generation, while Nano Banana Pro prioritizes realism and commercial usability.
Feature Comparison & Recommended Use Cases
Below is a side-by-side look at each model’s strengths and recommended applications, as available within X-Design.
Model | Strengths | Recommended Use Cases |
Seedream 4.5 | Supports up to 10 reference images, high-resolution output (up to 4K), flexible control over style, color, and composition | Concept art, fantasy illustrations, posters, batch content creation, branding asset exploration |
Nano Banana Pro | Photorealistic rendering of materials, lighting, and human subjects; precise text and layout; commercial-grade outputs | Product photography, advertising visuals, packaging design, lifestyle/scene photography, commercial posters |
Key Takeaway: Seedream 4.5 excels in creative and stylized batch outputs, while Nano Banana Pro is superior in photorealistic, professional commercial outputs.
Limitations and Considerations
- Seedream 4.5: Faces and hair details are well preserved, but outfit fusion, layout, and lighting consistency across multiple images may be limited. Extreme realism and precise textures are less consistent.
- Nano Banana Pro: Highly realistic, but less flexible for stylized or artistic outputs. Multi-image batch generation is accurate in layout and lighting but may slightly deviate in facial or character features.
- General Note: Both models depend heavily on prompt quality and reference images. Complex edits or multi-image blends may produce artifacts.
Example Prompts for Comparative Testing
A. Text-to-Image Testing
1. Artistic style
Prompt：A mystical forest at dusk, ethereal lighting, cinematic color grading, detailed fantasy plants and creatures, 4K resolution, poster style.
Goal: Compare style, composition, color.
Result: Seedream 4.5 likely produces more stylized, fantasy-rich visuals; Nano Banana Pro trends toward cleaner Illustration style.
2. Commercial product photorealism
Prompt：A high-end leather handbag on a marble tabletop with soft window light, shallow depth of field, sharp textures, realistic shadows, 4K resolution, e-commerce product photography style.
Goal: Evaluate material rendering, lighting, and texture fidelity.
Result: Nano Banana Pro excels in realism and texture accuracy; Seedream 4.5 may offer artistic enhancements but less photorealism.
3. Interior design realism
Prompt：Modern home interior with a cozy reading nook, warm lighting, Scandinavian style, 4K resolution, lifestyle photography
Goal: Test scene composition and lighting.
Result: Nano Banana Pro produces more realistic interior lighting, material accuracy, and coherent spatial geometry; Seedream 4.5 tends to generate more stylized, mood-driven interiors with softer details and less architectural precision.
4. Text rendering & poster layout
Prompt: Retro-style poster for a jazz club night, black & white background, bold typography reading ‘Jazz Night Live’, neon accents, 4K resolution.
Goal: Assess typography clarity and composition.
Result: Nano Banana Pro delivers sharper, more stable typography and cleaner poster layouts; Seedream 4.5 creates more stylistic, expressive designs but may produce less precise or slightly distorted text.
5. Multi-angle/ multi-image consistency
Prompt: Three different angles of a wooden chair, minimal background, consistent style, 4K resolution
Goal: Check style consistency and object/character consistency across images.
Result: Seedream 4.5 shows stronger multi-reference and batch consistency capabilities.
B. Image-to-Image Testing
1. Style Transfer (single reference)
Prompt: Use this reference to preserve face identity. Apply a cyberpunk neon lighting style with deep blue and magenta tones.
Goal: Test style transfer with a single reference while preserving facial identity and character consistency.
Result: Both models maintain strong character consistency; Nano Banana Pro applies the cyberpunk neon style effectively, while Seedream 4.5 fails to apply the style to the portrait.
2. Multi-Image Fusion (2–10 images)
Prompt: Blend all reference images to create a single unified character portrait. Preserve facial identity, merge outfits from all images, stylize in semi-realistic painterly style.
Goal: Evaluate the model’s ability to fuse multiple references into a single coherent image, while maintaining key features (face, pose, outfit) and consistent style. Test both identity preservation and stylization consistency.
Result: Seedream 4.5 preserves face and hair well but outfit fusion is inconsistent; Nano Banana Pro merges outfits logically but facial features may deviate slightly.
3. Product Consistency Across Series
Prompt: Using these product reference photos, generate a consistent set of lifestyle scenes matching the same lighting and color palette.
Goal: Test multi-image consistency for commercial products, including color accuracy, lighting uniformity, and style consistency across a series.
Result: Seedream 4.5 layout and lighting often inconsistent; Nano Banana Pro maintains consistent layout, lighting, and product positioning.
C. Local Editing & Enhancement
1. Local Object Replacement
Prompt: Replace only the background with a clean studio backdrop, keeping the product intact.
Goal: Assess selective editing precision, maintaining object integrity, shadows, and natural lighting.
Result: Seedream 4.5 smooth but may alter fine edges; Nano Banana Pro precise with shadows and reflections.
2. Local Text Editing
Prompt: Change the text on the packaging to “Herbal Revive”. Preserve layout and typography style.
Goal: Evaluate text replacement accuracy while maintaining layout, style, and readability.
Result: Seedream 4.5 acceptable style, minor misalignment; Nano Banana Pro precise and professional.
3. Remove Objects
Prompt: Remove the hand from the image while keeping the product’s shadows and lighting natural.
Goal: Test local object removal capability without disturbing surrounding elements, shadows, or reflections.
Result: Seedream 4.5 clean for general cases, slight artifacts; Nano Banana Pro highly accurate.
4. Material Enhancement
Prompt: Sharpen metal texture and enhance reflections while preserving the original layout.
Goal: Assess material-specific enhancement, improving texture clarity and visual fidelity while maintaining scene composition.
Result: Seedream 4.5 adds artistic flair, but enhancements are subtle and may exaggerate reflections; Nano Banana Pro applies more noticeable, precise enhancements, such as sharpening product details and textures, making it ideal for commercial use.
Summary & Recommendations
Within X-Design, both models are available to users. Seedream 4.5 powers creative, stylized, and batch outputs, while Nano Banana Pro handles photorealistic, product-focused, and commercial applications. This dual-model integration allows users to seamlessly switch between artistic experimentation and professional commercial work, covering a wide range of creative and business scenarios. Seedream 4.5 and Nano Banana Pro complement each other, addressing different needs in AI image generation.
- Nano Banana Pro: Excels in photorealistic rendering, consistent layout, and lighting. Facial details and stylization less flexible, but highly suitable for e-commerce, packaging, advertising, and commercial photography.
- Optimal Use: Choose based on task. Artistic, fantasy, batch projects → Seedream 4.5. Commercial, photorealistic, product-focused projects → Nano Banana Pro. Test prompts on both models for text, layout, and fine details.
Conclusion
Seedream 4.5 and Nano Banana Pro cater to complementary aspects of AI image generation. Understanding their strengths, limitations, and ideal use cases allows creators and businesses to choose the right tool. Seedream 4.5 is ideal for stylized, multi-reference, batch creative work, while Nano Banana Pro is best for photorealistic, product-focused, commercial applications. Leveraging both strategically can enhance productivity, maintain visual consistency, and maximize creative impact across diverse projects, from imaginative illustrations to professional marketing assets.