Image Model Comparison

Nano Banana 2 (gemini-3.1-flash-image-preview, current) vs Gemini 3 Pro image (gemini-3-pro-image) · 2026-06-20 · same product reference + preservation prompt for both · 5-HTP / Berberine bottles

Single product - clean studio

Prompt: A single supplement bottle on a clean white studio background, soft shadow, professional product photography.
1 reference image(s), same preservation prompt for both models

Nano Banana 2 (3.1 flash) · 8.6s · 204KB

Gemini 3 Pro image · 17.4s · 232KB

Multi-product scene (compositing)

Prompt: Two supplement bottles standing side by side on a marble kitchen counter, soft morning light, clean lifestyle product photo.
2 reference image(s), same preservation prompt for both models

Nano Banana 2 (3.1 flash) · 8.9s · 447KB

Gemini 3 Pro image · 25.7s · 462KB

Lifestyle + label legibility

Prompt: A hand holding the supplement bottle on a bathroom vanity, the product label clearly visible and legible, warm natural light, shallow depth of field.
1 reference image(s), same preservation prompt for both models

Nano Banana 2 (3.1 flash) · 9.3s · 530KB

Gemini 3 Pro image · 18.8s · 528KB