How to prompt Nano Banana Pro

Nano Banana Pro (gemini-3-pro-image-preview in IQON) is the default quality tier for image generation. It reads prompts like a brief to an artist — full sentences beat comma-separated tags.

Core rule: describe the scene

Describe the scene, don't just list keywords.

Bad: "Cool car, neon, city, night, 8k."

Good: A cinematic wide shot of a futuristic sports car speeding through a rainy Tokyo street at night. Neon signs reflect off wet pavement and the car's metallic chassis.

Templates that work

Product / commercial

A high-resolution, studio-lit product photograph of [product] on [surface]. Three-point softbox setup, soft highlights, no harsh shadows. 45-degree elevated angle to show [feature]. Sharp focus on [detail]. [Aspect ratio].

Photoreal portrait

A photorealistic close-up of [subject], [expression], in [environment]. [Lighting description], [mood] atmosphere. [Lens — e.g. 85mm portrait], shallow depth of field. [Aspect ratio].

Minimal / negative space

A minimalist composition with a single [subject] in the [corner] of the frame. Vast empty [color] background for text overlay. Soft diffused light. [Aspect ratio].

Nano Banana-specific strengths

Thinking mode — the model may refine composition internally before the final render. Complex layouts benefit from step-by-step instructions in one paragraph.

Resolution — request 2K or 4K when you need texture for print or crop headroom. Describe surface detail: matte ceramic, brushed steel, skin texture.

Context — say who the image is for. "Sandwich photo for a Brazilian gourmet cookbook" implies plating, depth of field, and lighting choices without spelling out each one.

Brand references — in IQON, attach reference images and ask for variations that honor palette and aesthetic from your brand kit. Nine editorial variations from one product reference is a common pattern.

Camera and lighting vocabulary

Use real photography terms:

• Shot types: wide, close-up, macro, low-angle, bird's-eye
• Lenses: 35mm environmental, 85mm portrait, macro for product detail
• Light: golden hour, softbox, rim light, overcast diffusion

Iteration inside IQON

1. Generate from enriched prompt (brand context applied automatically).
2. Tweak one dimension per retry — lighting, angle, or prop — not everything at once.
3. Switch to Nano Banana 2 for faster/cheaper drafts; finish hero assets on Pro.

Positive framing

Say what you want, not only what to exclude.

Instead of "no cars," write "empty deserted street with no traffic."

AI image best practices →