Nano Banana vs GPT Image vs Seedream
Nano Banana Pro, GPT Image 2 or Seedream 5: which image model should I use?
Google, OpenAI and ByteDance each have a strong image model family in OTOY Studio. All three generate and edit. Nano Banana Pro goes to 4K, GPT Image is known for following long prompts and rendering text, and Seedream 5 Pro includes a Layerize mode that splits an image into editable layers.
- Lowest price per run: GPT Image, from 1 credit (€0.01).
- Most modes: Seedream, with 5 variants (Bytedance Seedream 5 Pro, Bytedance Seedream 5 Pro Layerize, Bytedance Seedream 5 Lite, Bytedance Seedream 4.5, Bytedance Seedream 4).
Side by side
| Model | Maker | Variants in Studio | Resolution or size | Edits existing images | Credits per image |
|---|---|---|---|---|---|
| Nano Banana | Nano Banana Pro, Nano Banana 2, Nano Banana 2 Lite, Nano Banana | 1K, 2K, 4K | Yes | 4 to 28 | |
| GPT Image | OpenAI | GPT Image 2.5, GPT Image 2, GPT Image 1.5 | Square HD, Square, Portrait 4:3, Portrait 16:9, Landscape 4:3, Landscape 16:9 | Yes | 1 to 20 |
| Seedream | ByteDance | Bytedance Seedream 5 Pro, Bytedance Seedream 5 Pro Layerize, Bytedance Seedream 5 Lite, Bytedance Seedream 4.5, Bytedance Seedream 4 | standard | Yes | 3 to 31 |
Credits are OTOY Studio's currency: 1 credit = €0.01. Prices are list prices before plan discounts (paid plans take 10% to 25% off every run).
How to choose
Quality is a matter of taste and the shot, so the honest answer is to run the same prompt through each model and look. That's the main reason to use them in one place: in OTOY Studio you can wire one prompt and one set of reference images into all 3 models on the same canvas, run them side by side, and keep the winner. The comparison nodes let you view the results next to each other.
Model pages
- Nano Banana: 4 to 28 credits (€0.04 to €0.28) per run
- GPT Image: 1 to 20 credits (€0.01 to €0.20) per run
- Seedream: 3 to 31 credits (€0.03 to €0.31) per run
Try them: https://app.otoy.studio (free plan includes 100 credits a month).
Numbers are computed from OTOY Studio's billing configuration, exported 2026-09-28.