AI image model comparison
Nano Banana 2 vs Seedream 4.5
Image quality, cost per image, and editing features compared side by side. Or skip the guesswork and generate with both.
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed.
- Per image
- $0.067
- Output / 1M
- $60
- Image Elo
- 1277
ByteDance Seed
Seedream 4.5
Seedream 4.5 is the latest in-house image generation model developed by ByteDance.
- Per image
- $0.04
- Output / 1M
- $9.58
- Image Elo
- Not available
At a glance
Quick verdict
Which model wins on the things that matter most when you're making images.
Cheaper per image
Seedream 4.5
$0.04 vs $0.067, 1.7x cheaper
Better image quality
Not available
Not enough arena data
Better at editing
Not available
Not enough arena data
Newer release
Nano Banana 2
Released June 18, 2026
Quality
Image quality rankings
Elo ratings from Design Arena, where people vote between two anonymous images made from the same prompt. Higher is better.
Image generation
Nano Banana 2#4 · 65.1% wins1277Image editing
Nano Banana 2Not availableGraphic design
Nano Banana 2#4 · 66.3% wins1262Logos
Nano Banana 2#4 · 62.9% wins1262Pricing
Nano Banana 2 vs Seedream 4.5 price per image
What each image actually costs, plus the underlying API rates. Cheaper option highlighted.
| Metric | Nano Banana 2 | |
|---|---|---|
| Cost per imageEstimated, ~1 megapixel (1024×1024) | $0.067 | $0.04 |
| Image outputPer 1M image tokens | $60 | $9.58 |
| Tokens per imageHow many image tokens one ~1MP image uses | 1,120 | 4,175 |
| Prompt textPer 1M input tokens | $0.50 | Included |
What it costs in practice
Estimated totals at standard resolution.
Single image
1 image
Nano Banana 2$0.067Social media batch
50 images
Nano Banana 2$3.36Product catalog
1,000 images
Nano Banana 2$67.20Specs
Inputs, outputs, and limits
What each model accepts, what it gives back, and how long your prompt can be.
| Metric | Nano Banana 2 | |
|---|---|---|
| Accepts | Image, Text | Image, Text |
| Produces | Image, Text | Image |
| Max prompt lengthText plus reference images | 131K tokens | 4K tokens |
| Reasoning step | Optional | No |
| Release date | June 18, 2026 | December 23, 2025 |
Features
Supported features
Creative controls available for each model.
| Metric | Nano Banana 2 | |
|---|---|---|
| Image editingAccepts reference or source images | Supported | Supported |
| Text alongside imagesCan explain or caption what it made | Supported | Not supported |
| Thinks before drawingPlans the image with a reasoning step | Supported | Not supported |
| Reproducible seedsSame seed, same image | Supported | Not supported |
| Temperature controlTrade consistency for variety | Supported | Supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
Nano Banana 2View full model details- Nano Banana 2 vs GPT Image 2.5 Sunburst
- Nano Banana 2 vs Riverflow V2.5 Pro
- Nano Banana 2 vs Nano Banana
- Nano Banana 2 vs MAI-Image-2.6
- Nano Banana 2 vs Nano Banana 2 Lite
- Nano Banana 2 vs MAI-Image-2.6 Flash
- Nano Banana 2 vs Muse Image
- Nano Banana 2 vs GPT-5.4 Image 2
- Nano Banana 2 vs Nano Banana Pro
- Nano Banana 2 vs GPT Image 2
- Nano Banana 2 vs MAI-Image-2.5
- Nano Banana 2 vs FLUX.2 Flex
- Nano Banana 2 vs Seedream 5.0 Flash
- Nano Banana 2 vs FLUX.2 Pro
- Nano Banana 2 vs Ming Image 0.1 Design
- Nano Banana 2 vs Seedream 5.0 Pro
- Nano Banana 2 vs Grok Imagine Image 2.0
- Nano Banana 2 vs Seedream 5.0 Lite
- Nano Banana 2 vs Recraft V4.1 Flash
- Nano Banana 2 vs FLUX.3 Image
- Nano Banana 2 vs Grok Imagine Image Quality
- Nano Banana 2 vs Qwen Image 3
- Nano Banana 2 vs FLUX.2 Max
- Seedream 4.5 vs GPT Image 2.5 Sunburst
- Seedream 4.5 vs Nano Banana
- Seedream 4.5 vs Nano Banana 2 Lite
- Seedream 4.5 vs Muse Image
- Seedream 4.5 vs GPT-5.4 Image 2
- Seedream 4.5 vs GPT Image 2
- Seedream 4.5 vs Seedream 5.0 Flash
- Seedream 4.5 vs Nano Banana Pro
- Seedream 4.5 vs Ming Image 0.1 Design
- Seedream 4.5 vs Seedream 5.0 Pro
- Seedream 4.5 vs FLUX.2 Pro
- Seedream 4.5 vs Grok Imagine Image 2.0
- Seedream 4.5 vs Seedream 5.0 Lite
- Seedream 4.5 vs FLUX.2 Klein 4B
- Seedream 4.5 vs Recraft V4.1 Flash
- Seedream 4.5 vs FLUX.3 Image
- Seedream 4.5 vs Grok Imagine Image Quality
- Seedream 4.5 vs Qwen Image 3
- Seedream 4.5 vs FLUX.2 Max
- Seedream 4.5 vs MAI-Image-2.6 Flash
- Seedream 4.5 vs Riverflow V2.5 Pro
- Seedream 4.5 vs MAI-Image-2.6
- Seedream 4.5 vs FLUX.2 Flex
Our take
Nano Banana 2 is the safer default: cheaper, easier to edit with, and backed by Google's image stack. Seedream 4.5 is the ByteDance alternative people reach for when they want a different look or are already using Seedream elsewhere.
FAQ
Frequently asked questions
Is Nano Banana 2 or Seedream 4.5 cheaper?
Seedream 4.5 is cheaper at about $0.04 per standard image, compared with $0.067 for Nano Banana 2. For 1,000 images that is $40 versus $67.20.
Can Nano Banana 2 and Seedream 4.5 edit existing images?
Yes. Both accept reference images, so you can upload a photo and ask for changes like a new background, different lighting, or added text.
Can I use Nano Banana 2 and Seedream 4.5 at the same time?
Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see Nano Banana 2 and Seedream 4.5 results side by side and keep the one you like.
Why choose? Generate with both.
Send one prompt to Nano Banana 2 and Seedream 4.5 at the same time. See both images side by side and keep the one you like.