Nano Banana Pro vs GPT Image 2
Nano Banana Pro (Google Gemini 3 Pro) and GPT Image 2 (OpenAI) are the flagship image models of the two biggest AI labs, and both excel at understanding complicated prompts. Nano Banana Pro pushes semantic accuracy and up to 4K output; GPT Image 2 is known for text rendering and stylistic range at a lower unit cost.
Side-by-side specs
| Spec | Nano Banana Pro | GPT Image 2 |
|---|---|---|
| Provider | Google DeepMind | OpenAI |
| Credit cost | from 3 credits | from 2 credits |
| Price (USD) | $0.30-$0.50 | $0.20-$0.50 |
| Typical generation time | 8-15s | 5-15s |
| Image input | Yes | Yes |
| Resolution | 1K/2K/4K | Up to 1024x1024 |
| Quality | Premium | Medium |
| Architecture | Gemini 3 Pro | - |
| Provider | - | OpenAI |
Controls and limits
These are the exact settings each model exposes in the Arteza studio, read from the live model registry. A control listed for one model and not the other is a real capability difference, not an omission.
| Control | Nano Banana Pro | GPT Image 2 |
|---|---|---|
| Aspect Ratio | 1:1, 16:9, 9:16, 4:3, 3:4 | Not available |
| Number of Images | 1 to 4 | 1 to 4 |
| Seed | Supported | Not available |
| Image Size | Not available | 1024x1024, 816x816, 768x1024 (Portrait), 1024x768 (Landscape), 1088x608 (Wide) |
Real output from both models
Every clip and image below was generated on Arteza by the model in its column, shown with the prompt that produced it. Nothing here is a stock photograph or a sample borrowed from another model.
Nano Banana Pro
GPT Image 2
When to choose each model
Choose Nano Banana Pro when
- Marketing and product imagery where getting every prompt detail right matters most.
- You need up to 4K output for large-format or zoom-heavy use.
- Complex compositional instructions that weaker models scramble.
What each model ships
Nano Banana Pro
Premium image generation powered by Google Gemini 3 Pro. The highest quality Google model with exceptional semantic accuracy, perfect for marketing campaigns, product visualization, and text-heavy creative content.
- Gemini 3 Pro architecture
- Best semantic accuracy
- Up to 4K resolution
- Commercial use
GPT Image 2
OpenAI's latest image generation model. GPT Image 2 excels at understanding complex prompts and producing diverse, creative outputs with excellent text rendering and composition.
- Complex prompt understanding
- Excellent text rendering
- Diverse styles
- Multiple sizes
The bottom line
Both are excellent generalists, so the tiebreakers are specific: 4K and semantic precision favor Nano Banana Pro, in-image text and unit economics favor GPT Image 2. Since both bill flat per image on Arteza, the honest advice is to run your three hardest prompts through each and count which needed fewer retries.
Frequently asked questions
Which model renders text inside images better?
GPT Image 2 is particularly strong at legible in-image text. Nano Banana Pro also handles text-heavy creative content well. For dedicated typography like logos and posters, Ideogram V4 is a third option worth testing.
What resolutions do they support?
Nano Banana Pro outputs 1K, 2K, or 4K. GPT Image 2 tops out at 1024x1024, offered across square, portrait and landscape framings. Live options are listed in the Arteza image studio for each.
Are both licensed for commercial use?
Generations you create on Arteza can be used commercially under Arteza's terms. Review the terms page for specifics that apply to your account and jurisdiction.