Seedream 5.5 vs Nano Banana Pro: pick the right AI image model
Seedream 5.5 and Nano Banana Pro are two of the strongest AI image models for realistic visuals with readable text. This Seedream 5.5 vs Nano Banana Pro comparison covers realism, text, multi-turn editing, transparent backgrounds and resolution, so you can pick the right model for each project. Try both side by side in AI Playground.
Feature comparison overview
Compare Seedream 5.5 vs Nano Banana Pro side by side: resolution, aspect ratios, source images, editing, backgrounds and controls.
| Feature | Seedream 5.5 (ByteDance) | Nano Banana Pro (Google DeepMind) |
|---|---|---|
| Developer | Seedream 5.5 (ByteDance)ByteDance Seed | Nano Banana Pro (Google DeepMind)Google DeepMind |
| Built for | Seedream 5.5 (ByteDance)Realistic images, clear text and stable multi-turn edits | Nano Banana Pro (Google DeepMind)Top-tier 4K images with precise multilingual text |
| Resolution | Seedream 5.5 (ByteDance)1K, 1.5K or 2K | Nano Banana Pro (Google DeepMind)1K, 2K or 4K |
| Default resolution | Seedream 5.5 (ByteDance)1K | Nano Banana Pro (Google DeepMind)2K |
| Aspect ratios | Seedream 5.5 (ByteDance)Eight: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9 | Nano Banana Pro (Google DeepMind)Eight: auto, 1:1, 16:9, 9:16, 3:4, 4:3, 2:3, 21:9 |
| Source images | Seedream 5.5 (ByteDance)Up to 10 | Nano Banana Pro (Google DeepMind)Up to 14 |
| Multi-turn editing | Seedream 5.5 (ByteDance)Built to keep unedited areas the same over many edits | Nano Banana Pro (Google DeepMind)Edits and blends source images |
| Transparent background | Seedream 5.5 (ByteDance)Yes, native RGBA PNG | Nano Banana Pro (Google DeepMind)No background setting |
| Negative prompt | Seedream 5.5 (ByteDance)Yes | Nano Banana Pro (Google DeepMind)No |
| Thinking and repeat controls | Seedream 5.5 (ByteDance)No thinking or seed setting | Nano Banana Pro (Google DeepMind)Thinking budget (128 to 24,576) and seed |
| Text in images | Seedream 5.5 (ByteDance)Dense small text in English and Chinese | Nano Banana Pro (Google DeepMind)Precise multilingual text |
| Where to use it in Picsart | Seedream 5.5 (ByteDance)AI Playground | Nano Banana Pro (Google DeepMind)AI Playground |
Meet Seedream 5.5 and Nano Banana Pro
Seedream 5.5 is ByteDance Seed's newest image generation and editing model, built for realistic images with clear text, stable multi-turn edits and native transparent backgrounds, at up to 2K. Nano Banana Pro is Google DeepMind's top-tier image model, known for 4K images with precise multilingual text and a thinking budget control. Both generate from text and edit the images you add. Try them both in our AI Playground.
Realism and text: natural detail vs multilingual precision
Seedream 5.5 focuses on realism: ByteDance tuned it to render light, materials and skin more naturally, with less gloss and overexposure, and to keep dense small text readable in English and Chinese. Nano Banana Pro is known for precise multilingual text in detailed 4K images, such as posters, signage and labels. For lifelike portraits and products, try Seedream 5.5; for text in many languages at 4K, try Nano Banana Pro.
Multi-turn editing: stable rounds vs source blending
Seedream 5.5 is built for long edit sessions. Each edit changes only what you ask for and keeps the rest of the image the same, without a color shift, and ByteDance demonstrated 100 edits in a row on one portrait. It takes up to 10 source images. Nano Banana Pro takes up to 14 source images to edit and blend, with a thinking budget for complex requests. For step-by-step edits on one image, pick Seedream 5.5; for blending many references, both work.
Output and controls: transparency and 2K vs thinking and 4K
Seedream 5.5 can output a real alpha channel: set the background to transparent and you get an RGBA PNG with full and partial transparency, ready for stickers, cutouts and design assets, and it takes a negative prompt. It renders at 1K, 1.5K or 2K. Nano Banana Pro goes up to 4K (1K, 2K or 4K, 2K by default), generates up to 10 images per run, and adds a thinking budget (128 to 24,576) and a seed to repeat a result. Both offer eight aspect ratios, including 21:9. For transparent assets, pick Seedream 5.5; for the most pixels, pick Nano Banana Pro.
Choose Seedream 5.5 or Nano Banana Pro
Choose Seedream 5.5 for realistic portraits and products, stable step-by-step edits, transparent assets and dense small text. Choose Nano Banana Pro for 4K output, precise multilingual text, several images per run and repeatable results with a seed. Want another Seedream option? Seedream 5.0 Pro is the top-tier Seedream 5.0 model. Or use both: in Picsart's AI Playground you can run the same prompt through each and keep the better image.
Seedream 5.5 vs Nano Banana Pro FAQ
Answers about generating images with Seedream 5.5 and Nano Banana Pro in Picsart.
Seedream 5.5 is ByteDance Seed's model for realistic images, clear text and stable multi-turn edits, with native transparent backgrounds, up to 10 source images and output up to 2K. Nano Banana Pro is Google DeepMind's 4K model with precise multilingual text, a thinking budget, a seed and up to 14 source images.
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