Best Prompts for Nano Banana Pro: A Practical Guide with Examples

AI image generation has reached a new level with Nano Banana Pro, the image model powering Gemini 3 Pro. Unlike previous generators, this model understands physics, lighting, and—for the first time reliably—text within images.

This guide compiles the most effective prompts for Nano Banana Pro, organized by use case and ready to copy. Each prompt includes optimal aspect ratio and quality settings to maximize your results.

What's inside

• Professional photography: Corporate headshots, product shots, lifestyle
• Image editing: Background changes, object removal, quality enhancement
• Design & creativity: Infographics, logos, architectural renders
• E-commerce: Product photography and virtual try-on
• Social media: Thumbnails, posters, viral content

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Aspect ratio and quality: How to choose

Nano Banana Pro lets you configure two key parameters that significantly affect output:

Available aspect ratios

Quality levels

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Professional photography

These prompts use real photography terminology: lighting setups, lenses, and camera styles. This enables Nano Banana Pro to generate studio-quality results.

Corporate headshot (LinkedIn / Personal Branding)

Transform any casual photo into a professional studio portrait.

Settings: 1:1 or 4:5 · 4K

The 1:1 ratio is ideal for LinkedIn profile photos. Use 4:5 when you need more body context (shoulders, blazer). 4K quality ensures professional sharpness in facial details.

Analog film aesthetic

Generate a portrait with the distinctive look of analog film.

Settings: 3:2 or 2:3 · 4K

The 3:2 ratio replicates the 35mm film format, reinforcing the analog aesthetic. Use 2:3 for vertical orientation. 4K allows you to appreciate the simulated film grain.

Y2K nostalgic portrait

Recreate the aesthetic of early 2000s digital photography.

Settings: 3:4 or 4:5 · 2K

Vertical ratios 3:4 and 4:5 emulate the proportions of point-and-shoot digital cameras from that era. 2K maintains that characteristic "imperfect" resolution—4K would be too crisp for this aesthetic.

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E-commerce and product photography

These prompts enable professional product photography without expensive photo shoots.

Catalog-ready product photography

Turn any product photo into a professional catalog image.

Settings: 1:1 or 4:5 · 4K

The 1:1 ratio is the e-commerce standard (Amazon, Etsy, Shopify). 4:5 works well for vertically-oriented products. 4K is essential for product zoom and texture detection.

Virtual fashion try-on

Visualize how a garment looks on a specific model.

Settings: 2:3 or 4:5 · 4K

The 2:3 ratio is ideal for full-body fashion photography. 4:5 works better for half-body shots. 4K ensures fabric textures are believable.

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Image editing

Nano Banana Pro can edit existing images with natural language commands. No external tools needed for specific changes.

Smart frame extension

Expand an image by generating coherent content in the extended areas.

Settings: 21:9 · 4K

The 21:9 ultrawide ratio is perfect for wallpapers and cinematic headers. 4K maximizes detail in generated areas.

Background cleanup

Remove unwanted elements from a photograph's background.

Settings: Keep original ratio · 4K

When editing existing images, maintain the original aspect ratio to avoid unexpected crops. 4K ensures the generated fill is indistinguishable from original content.

Targeted modifications

Change specific elements without affecting the rest of the composition.

Settings: Keep original ratio · 2K or 4K

For minor changes, 2K offers good speed. Use 4K if the modified element is the main focus.

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Design and infographics

One of Nano Banana Pro's standout capabilities is handling text within images.

Educational diagram

Transform complex concepts into clear visualizations.

Settings: 4:3 or 16:9 · 2K

The 4:3 ratio works well for educational presentations. Use 16:9 if it will be used in slides or video. 2K is sufficient for vector-style diagrams—text renders well at this resolution.

Basic brand identity

Generate logo concepts with integrated text.

Settings: 1:1 · 4K

Logos should be generated at 1:1 for maximum versatility. 4K ensures crisp edges and perfectly legible text even at small sizes.

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Interior design and architecture

These prompts enable visualization of spaces and architectural projects.

Floor plan to photorealistic render

Generate a render from a 2D floor plan.

Settings: 16:9 · 4K

The 16:9 ratio is standard for architectural presentations. 4K is essential for professional renders where clients need to see material and finish details.

Virtual home staging

Virtually furnish an empty room for real estate photography.

Settings: 4:3 or 16:9 · 4K

Horizontal ratios 4:3 and 16:9 are most common in real estate photography. 4K allows potential buyers to zoom in on details.

Material swap

Test different finishes in a space.

Settings: Keep original ratio · 2K

For quick material iterations, 2K offers good generation speed. Use 4K only for the final approved version.

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Social media and marketing

Generate social media creatives quickly and professionally.

Video thumbnail (YouTube/TikTok)

Create thumbnails that grab attention and boost CTR.

Settings: 16:9 · 2K

YouTube uses 16:9 for thumbnails (1280x720). 2K is sufficient since thumbnails are viewed at reduced sizes—4K would be unnecessary.

Promotional poster

Design promotional material with perfectly integrated text.

Settings: 4:5 or 9:16 · 4K

The 4:5 ratio is optimal for Instagram feed. 9:16 for Stories and vertical formats. 4K ensures text is crisp even in print.

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Translation and visual localization

Nano Banana Pro can edit text within images while maintaining the original aesthetic.

Signage and menu translation

Translate visual content while preserving textures and style.

Settings: Keep original ratio · 2K

When translating, keep the document's original ratio. 2K is sufficient for most translations—focus is on legibility, not extreme detail.

Illustrated content adaptation

Localize comics, memes, or graphic content to other languages.

Settings: Keep original ratio · 2K

Comics have varied ratios—keep the original. 2K preserves artistic style without adding artificial sharpness.

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Creative experiments

These prompts explore the limits of what Nano Banana Pro can generate.

Picture within a picture (Droste Effect)

Generate recursive compositions with infinite loop effect.

Settings: 1:1 · 4K

The 1:1 ratio simplifies recursive geometry. 4K is necessary to maintain detail in smaller iterations.

Temporal progression

Visualize a subject's evolution through time.

Settings: 16:9 or 3:2 · 4K

Horizontal ratios allow showing multiple stages in sequence. 4K ensures each stage has sufficient facial detail.

Visual geolocation

Generate a scene based solely on coordinates.

Settings: 16:9 or 21:9 · 4K

Panoramic ratios work better for cityscapes and views. 4K captures architectural and atmospheric details.

3D collectible figure

Transform portraits into stylized vinyl toy characters.

Settings: 1:1 or 4:5 · 4K

Square or slightly vertical ratios work well for figures. 4K allows appreciating the glossy plastic finish.

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How to get the best results

The formula for effective Nano Banana Pro prompts:

1. Subject: What you want to generate
2. Action/Context: What it's doing or where it is
3. Artistic style: Photorealistic, illustration, vintage, etc.
4. Technical parameters: Lighting, lens, angle, color palette
5. Settings: Appropriate aspect ratio and quality for your use case

Basic example:

Optimized example:

Settings: 3:2 · 4K

The model responds better when you use photography and cinema terminology. Describe the scene as a director of photography would, and choose the aspect ratio that best aligns with the type of image you're generating.

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Frequently asked questions

What is Nano Banana Pro?

Nano Banana Pro is the internal name for the image generation model integrated into Gemini 3 Pro. Its main capabilities are:

• Native resolution up to 4K
• Legible text within images
• Semantic editing of existing photos
• Facial consistency to maintain identity across different styles

Is Nano Banana Pro free?

Yes. You can use Nano Banana Pro for free at ilisai.com. Just create an account—no credit card required.

ilisai offers a free tier that includes access to Nano Banana Pro (Gemini 3 Pro Image) alongside other AI image generation models. It's the easiest way to try this image generator with no commitment.

Can I use these prompts in languages other than English?

Yes. Nano Banana Pro understands prompts in multiple languages with similar effectiveness. The key is being specific and using technical terminology when relevant.

How do I maintain facial consistency?

Include phrases like "Keep the facial features exactly consistent" or "Without changing their original face" at the beginning of your prompt. The model will prioritize identity preservation.

How long should prompts be?

More detailed prompts produce better results. There's no penalty for length. Include all relevant information: style, lighting, composition, specific details.

Which aspect ratio should I use?

Depends on final use:

• Vertical social media (Stories, Reels): 9:16
• Instagram feed: 4:5 or 1:1
• YouTube thumbnails: 16:9
• Professional portraits: 1:1, 4:5, or 3:4
• Full-body fashion photography: 2:3
• Landscapes and cinematic: 16:9 or 21:9
• E-commerce: 1:1 or 4:5

When to use 4K vs 2K?

Use 4K when:

• The result will be printed
• You need to zoom in on details
• It's a final client deliverable
• The image has complex textures (skin, fabric, architecture)

Use 2K when:

• You're iterating quickly
• Destination is social media
• Working with vintage or "imperfect" styles
• You don't need maximum resolution