Compare models
GPT Image 2 vs Nano Banana vs Nano Banana 2 vs Nano Banana Pro
Choose by output quality, reference-image count, aspect-ratio needs, and how complex the visual reasoning is.
Direct answer
GPT Image 2
Choose GPT Image 2 when the output needs to be client-ready, when you want the broadest size controls, or when a prompt needs many reference images.
Nano Banana
Choose Nano Banana when you need speed and a lightweight reference-image workflow more than high-resolution output.
Nano Banana 2
Choose Nano Banana 2 when you want Gemini speed, more references, and higher-resolution exports without the full Pro image model.
Nano Banana Pro
Choose Nano Banana Pro for the most demanding Gemini image prompts, especially high-resolution commercial scenes, stronger text handling, and multi-reference art direction.
Capability matrix
| Models | Provider | Quality | References | Best use |
|---|---|---|---|---|
| GPT Image 2 | gpt-image-2 | 1K, 2K, 4K | 16 | Product renders, ad concepts, campaign key visuals, thumbnails, and social creatives. |
| Nano Banana | gemini-2.5-flash-image | 1K | 3 | Moodboard passes, visual ideation, small social concepts, and early product shot exploration. |
| Nano Banana 2 | gemini-3.1-flash-image-preview | 1K, 2K, 4K | 14 | Campaign concept sets, UI mockup imagery, creator thumbnails, and product lifestyle scenes. |
| Nano Banana Pro | gemini-3-pro-image-preview | 1K, 2K, 4K | 14 | High-detail product scenes, editorial campaigns, ad concepts, cinematic images, and brand art direction. |
Decision rules
- Choose GPT Image 2 when the output needs to be client-ready, when you want the broadest size controls, or when a prompt needs many reference images.
- Choose Nano Banana when you need speed and a lightweight reference-image workflow more than high-resolution output.
- Choose Nano Banana 2 when you want Gemini speed, more references, and higher-resolution exports without the full Pro image model.
- Choose Nano Banana Pro for the most demanding Gemini image prompts, especially high-resolution commercial scenes, stronger text handling, and multi-reference art direction.
FAQ
Is GPT Image 2 the default model on GPT Image Hub?
Yes. GPT Image Hub uses GPT Image 2 as the default image model because it covers the broadest set of quality tiers, aspect ratios, and reference-image workflows in the current app configuration.
What is Nano Banana on GPT Image Hub?
Nano Banana is the Hub label for Google's gemini-2.5-flash-image model. It is positioned here as a fast 1K generation and editing option.
How is Nano Banana 2 different from Nano Banana?
In GPT Image Hub, Nano Banana 2 adds 2K and 4K quality tiers and raises the reference-image limit from 3 to 14, making it better for serious production drafts.