AI image model comparison
GPT-5.4 Image 2 vs Nano Banana
Image quality, cost per image, and editing features compared side by side. Or skip the guesswork and generate with both.
OpenAI
GPT-5.4 Image 2
[GPT-5.4](https://openrouter.ai/openai/gpt-5.4) Image 2 combines OpenAI's GPT-5.4 model with state-of-the-art image generation capabilities from GPT Image 2.
- Per image
- Not available
- Output / 1M
- $30
- Image Elo
- Not available
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding.
- Per image
- $0.039
- Output / 1M
- $30
- Image Elo
- 1187
At a glance
Quick verdict
Which model wins on the things that matter most when you're making images.
Cheaper per image
Not available
Only one lists a per-image price
Better image quality
Not available
Not enough arena data
Better at editing
Not available
Not enough arena data
Newer release
GPT-5.4 Image 2
Released April 21, 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
Image editing
Graphic design
Logos
Pricing
GPT-5.4 Image 2 vs Nano Banana price per image
What each image actually costs, plus the underlying API rates. Cheaper option highlighted.
| Metric | ||
|---|---|---|
| Cost per imageEstimated, ~1 megapixel (1024×1024) | Not available | $0.039 |
| Image outputPer 1M image tokens | $30 | $30 |
| Tokens per imageHow many image tokens one ~1MP image uses | Not available | 1,290 |
| Prompt textPer 1M input tokens | $8 | $0.30 |
| Reference imagesPer 1M input image tokens | $8 | $0.30 |
What it costs in practice
Estimated totals at standard resolution.
Single image
1 image
Social media batch
50 images
Product catalog
1,000 images
Specs
Inputs, outputs, and limits
What each model accepts, what it gives back, and how long your prompt can be.
| Metric | ||
|---|---|---|
| Accepts | File, Image, Text | Image, Text |
| Produces | Image, Text | Image, Text |
| Max prompt lengthText plus reference images | 272K tokens | 33K tokens |
| Reasoning step | Optional | No |
| Release date | April 21, 2026 | October 7, 2025 |
Features
Supported features
Creative controls available for each model.
| Metric | ||
|---|---|---|
| Image editingAccepts reference or source images | Supported | Supported |
| Text alongside imagesCan explain or caption what it made | Supported | Supported |
| Thinks before drawingPlans the image with a reasoning step | Supported | Not supported |
| Reproducible seedsSame seed, same image | Supported | Supported |
| Temperature controlTrade consistency for variety | Not supported | Supported |
FAQ
Frequently asked questions
Can GPT-5.4 Image 2 and Nano Banana 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 GPT-5.4 Image 2 and Nano Banana at the same time?
Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see GPT-5.4 Image 2 and Nano Banana results side by side and keep the one you like.
Why choose? Generate with both.
Send one prompt to GPT-5.4 Image 2 and Nano Banana at the same time. See both images side by side and keep the one you like.