Gemini Nano Banana vs ByteDance Seedream 4.0: Which AI Generates Better Images? Full Comparison
Compare Gemini Nano Banana and ByteDance Seedream 4.0 to find out which AI image generator excels in creating realistic 3D models, holograms, and artistic edits. See full prompt-based results and analysis.
Gemini Nano Banana and ByteDance Seedream 4.0 were tested side by side, showing differences in 3D model generation, hologram effects, and artistic transformations.
The AI image generation space is heating up as Gemini Nano Banana (Gemini 2.5 Flash Image) faces stiff competition from ByteDance’s new Seedream 4.0. While Nano Banana gained popularity through the viral 3D model trend, Seedream 4.0 is emerging as a strong contender, outperforming Gemini on some benchmarks.
Seedream 4.0 vs Gemini Nano Banana
Seedream 4.0 leads Artificial Analysis rankings for AI image generation, topping metrics like speed, cost, and quality. Nano Banana follows in second place, with OpenAI’s GPT-4o and Alibaba’s Qwen Image Edit in fourth and fifth positions, respectively.
Seedream 4.0 excels in both generating new images from text prompts and editing existing ones. It can extract key details from reference images, such as character design, artistic style, and product features, supporting applications like character creation, style transfer, and product design. Multiple image inputs can also be combined for complex outputs.
Prompt Tests & Comparisons
We tested both models using five prompts to compare their capabilities:
- Basic 3D Model – Nano Banana successfully created a 1/7 scale realistic figurine, while Seedream preserved facial expressions but failed to produce a full 3D model.
- City-Explorer 3D Model – Gemini retained posture and facial details, creating a recognizable 3D figurine. Seedream generated higher-quality images but with less resemblance to the reference.
- Urban Samurai Crossover – Both models produced 3D figurines blending modern streetwear with samurai armor, though Gemini better retained the subject’s facial and postural details.
- Renaissance Painting – Gemini performed decently, keeping clothing accurate but slightly distorting facial features. Seedream struggled to complete the transformation.
- Hologram Objects – Both models created transparent hologram effects successfully, with Nano Banana maintaining more realism and finer details.
Verdict
Gemini Nano Banana remains a strong contender in AI image editing, particularly for 3D model generation and realistic transformations. Seedream 4.0 impresses with higher-quality renders and multi-image integration but sometimes sacrifices fidelity to the original reference. For users prioritizing realistic 3D figurines and detailed edits, Nano Banana continues to hold the edge.
