GPT Image vs Nano Banana 2
The same prompt at the same ratio, generated by both models. Timing and credits come from this actual run.
How to choose
This pair differs on two axes: which one listens more carefully, and which one is faster. GPT Image is more reliable when a prompt carries many parallel constraints; Nano Banana 2 wins on editing and turnaround.
| Criterion | GPT Image | Nano Banana 2 | Better |
|---|---|---|---|
| Complex instructions | Best — holds several constraints at once | Good | GPT Image |
| Local editing | Workable | Strong | Nano Banana 2 |
| Transparent background | Native support | Needs the cutout tool | GPT Image |
| Speed | Moderate | Faster | Nano Banana 2 |
| Cost | Higher | Lower | Nano Banana 2 |
Specs side by side
| Item | GPT Image | Nano Banana 2 |
|---|---|---|
| Provider | OpenAI | |
| Model ID | gpt-image-2 | gemini-3.1-flash-image |
| Max resolution | 4K | 4K |
| Speed | Balanced | Fast |
| Reference images | up to 4 | up to 4 |
| Modes | Text to Image, Image to Image, Edit Image, Multi-reference | Text to Image, Image to Image, Edit Image, Multi-reference, Product Image |
| From (credits) | 3 | 2 |
| Negative Prompt | not supported | not supported |
Choose GPT Image when…
- · The brief has many constraints
- · You need transparent PNG assets
- · Layout requirements are explicit
Choose Nano Banana 2 when…
- · The work is mostly editing
- · Speed and cost matter
- · You need multi-reference consistency
How this comparison is made
The tables above come from published specs and hands-on use. They contain no scores we have not measured. A shared eight-category benchmark — portrait, product, poster text, anime character, interior, multi-reference, image editing and character consistency — is running for every model, and real generation time, success rate and text accuracy figures will be added here when it completes. Until then, the most reliable test is running your own prompt side by side above.
Frequently Asked Questions
Which is better for ecommerce images?+
Both work inside the product pipeline, but Nano Banana 2 makes "keep the product, replace the scene" easier to achieve.