Nano Banana Pro vs GPT Image 2: Which AI Image Model Wins in 2026?
By the Shotari Team
Nano Banana Pro and GPT Image 2 are two of the most-requested AI image models on Shotari. Both handle text-to-image and reference-image editing up to 4K — but they trade off differently on consistency, speed, and cost. Here is the practical breakdown, using the exact settings and credit prices you get on Shotari.
Spec-by-spec comparison
| Nano Banana Pro | GPT Image 2 | |
|---|---|---|
| Credits per image (1K) | 10 credits | 5 credits |
| Max resolution | 4K (2× credits) | 4K (2× credits) |
| Aspect ratios | Auto, 1:1, 9:16, 16:9, 4:3, 3:4 | Auto, 1:1, 9:16, 16:9, 4:3, 3:4 |
| Reference images | Up to 3 | Up to 3 |
| Signature strength | Subject consistency & high-fidelity retouching | Prompt adherence & creative output |
| Best for | Brand/character work, commercial retouching | Fast ideation, prompt-driven concepts |
Which one should you pick?
Choose Nano Banana Pro if…
you need the same character, product, or style to stay consistent across a series of images, or you are retouching for client/commercial work where fidelity matters more than cost.
Choose GPT Image 2 if…
you iterate fast on creative prompts and want twice as many attempts per credit — its prompt adherence makes it the better brainstorming engine.
Try both on Shotari in 3 steps
- 1
Open either model page on Shotari and describe the image you want (optionally attach up to 3 reference images).
- 2
Pick resolution (1K/2K/4K) and aspect ratio — the credit cost updates live.
- 3
Generate, compare results side by side in your history, and re-run the same prompt on the other model with one click.
Frequently asked questions
Is Nano Banana Pro better than GPT Image 2?
Neither is strictly better. Nano Banana Pro leads on subject consistency and high-fidelity retouching; GPT Image 2 costs half the credits (5 vs 10 per 1K image) and follows complex prompts tightly. Most Shotari users draft with GPT Image 2 and finish hero shots with Nano Banana Pro.
Can I try both models for free?
Yes. New Shotari accounts get 20 free credits at signup plus 10 free daily credits. Free-tier output carries a small watermark; paid credits remove it and include commercial rights.
Which model is cheaper on Shotari?
GPT Image 2 at 5 credits per 1K image versus 10 credits for Nano Banana Pro. 2K costs 1.5× and 4K costs 2× on both models.
Do both models support reference images?
Yes — upload up to 3 reference images with either model to guide composition, style, or subject identity.
Which should I use for product photos?
Nano Banana Pro, in most cases: its detail retention keeps labels, textures, and brand elements intact across variations. Use GPT Image 2 first if you are still exploring concepts.