NanoBanana has moved image generation closer to real design work. Instead of only asking for "a cool poster" or "a futuristic infographic," creators can now prompt for layouts, readable text, translated copy, menus, product mockups, and educational visuals with much more control.
That matters because Google positions Nano Banana Pro — also known as Gemini 3 Pro Image — as its stronger option for studio-quality image generation, improved text rendering, multilingual output, visual reasoning, and infographic-style results. Google's own launch materials show examples like plant infographics, recipe layouts, translated packaging, stylized typography, and poster-like compositions with text directly inside the image.
The key lesson is simple: when you want text-heavy visuals, stop prompting like an artist and start prompting like a designer.
A pure art prompt says: "Make me a cool poster for a summer event."
A design brief says: "Create a 9:16 vertical event poster with a bold headline at the top, three short details in the middle, a clean CTA at the bottom, large readable sans-serif typography, strong contrast, safe margins, and no extra words."
That second prompt gives the model hierarchy, copy, placement, format, and rules. That is the difference between a nice-looking image and a usable marketing asset.
Why NanoBanana Pro Matters for Text-Heavy Images
Most image models used to struggle with words. They could create beautiful scenes, but the letters might come out warped, misspelled, duplicated, or placed in awkward areas. Google's Nano Banana Pro announcement specifically emphasizes better legible text directly in images, including short taglines, longer paragraphs, posters, mockups, calligraphy, and multilingual/localized content.
This does not mean every output will be perfect. It means the model is now useful enough for designers and marketers to build first drafts of real visual communication assets. NanoBanana Pro is powerful for:
- Event posters
- Course graphics
- Menus
- Educational infographics
- Product hero images
- Multilingual campaign graphics
- Social banners
- Slide visuals
- Localized ads
- Internal training diagrams
The best results come when the prompt includes the same details a human designer would expect: canvas size, copy, hierarchy, typography direction, spacing, color palette, layout zones, and quality-control rules.
The Core Principle: Prompt Like a Design Brief
For text-heavy graphics, use this design-brief structure:
PROJECT TYPE: Poster, menu, infographic, banner, product hero, flyer.
CANVAS: Aspect ratio, orientation, platform, resolution goal.
AUDIENCE: Who is this for?
VISUAL STYLE: Brand mood, color palette, photography or illustration style.
TEXT CONTENT: Exact headline, subheadline, body copy, labels, CTA.
TEXT PLACEMENT: Where each text block should go.
HIERARCHY: What should be largest, second largest, smallest.
LAYOUT RULES: Margins, grid, spacing, alignment, number of sections.
LANGUAGE: Target language, translation instructions, keep brand names unchanged.
QUALITY CONTROL: No extra words, no misspellings, preserve exact names, readable small text.
PROJECT TYPE: Poster, menu, infographic, banner, product hero, flyer.
CANVAS: Aspect ratio, orientation, platform, resolution goal.
AUDIENCE: Who is this for?
VISUAL STYLE: Brand mood, color palette, photography or illustration style.
TEXT CONTENT: Exact headline, subheadline, body copy, labels, CTA.
TEXT PLACEMENT: Where each text block should go.
HIERARCHY: What should be largest, second largest, smallest.
LAYOUT RULES: Margins, grid, spacing, alignment, number of sections.
LANGUAGE: Target language, translation instructions, keep brand names unchanged.
QUALITY CONTROL: No extra words, no misspellings, preserve exact names, readable small text.
Prompt Skeleton Diagram
Use this as a repeatable prompt framework:
Create a [ASSET TYPE] for [AUDIENCE / PURPOSE].
Canvas:
- Aspect ratio: [9:16 / 1:1 / 16:9 / 4:5]
- Resolution goal: [2K / 4K if available]
- Platform: [Instagram Reel cover / YouTube thumbnail / print flyer / website hero]
Visual style:
- Mood: [premium / educational / playful / luxury / clean tech]
- Color palette: [black, gold, white]
- Design style: [modern editorial / clean infographic / luxury product ad]
Text:
- Headline: "[EXACT HEADLINE]"
- Subheadline: "[EXACT SUBHEADLINE]"
- Body copy: "[EXACT BODY COPY]"
- CTA: "[EXACT CTA]"
Placement:
- Headline at [top / center / left side]
- Body copy in [middle cards / right column / lower third]
- CTA at [bottom center / bottom right]
Typography:
- Headline: large, bold, readable
- Body: clean sans-serif, high contrast
- Keep all text sharp and spelled correctly
Rules:
- Do not add extra text.
- Do not change names, dates, prices, or URLs.
- Leave safe margins.
- Make small text readable.
Create a [ASSET TYPE] for [AUDIENCE / PURPOSE].
Canvas:
- Aspect ratio: [9:16 / 1:1 / 16:9 / 4:5]
- Resolution goal: [2K / 4K if available]
- Platform: [Instagram Reel cover / YouTube thumbnail / print flyer / website hero]
Visual style:
- Mood: [premium / educational / playful / luxury / clean tech]
- Color palette: [black, gold, white]
- Design style: [modern editorial / clean infographic / luxury product ad]
Text:
- Headline: "[EXACT HEADLINE]"
- Subheadline: "[EXACT SUBHEADLINE]"
- Body copy: "[EXACT BODY COPY]"
- CTA: "[EXACT CTA]"
Placement:
- Headline at [top / center / left side]
- Body copy in [middle cards / right column / lower third]
- CTA at [bottom center / bottom right]
Typography:
- Headline: large, bold, readable
- Body: clean sans-serif, high contrast
- Keep all text sharp and spelled correctly
Rules:
- Do not add extra text.
- Do not change names, dates, prices, or URLs.
- Leave safe margins.
- Make small text readable.
Failed vs. Improved Prompt Comparison
Weak Prompt:
Make a cool infographic about AI marketing.
This is too vague. The model has to guess the audience, layout, sections, colors, text, and hierarchy.
Improved Prompt:
Create a clean 9:16 vertical infographic for business owners titled "AI Marketing Workflow."
Use a modern black, gold, and white NextWave AI Academy style.
Layout: Top — large headline "AI Marketing Workflow". Middle — five stacked steps with icons: 1. Research Audience, 2. Generate Content Ideas, 3. Create Visuals, 4. Schedule Campaigns, 5. Track Results. Bottom — CTA text "Join NextWave AI Academy".
Typography: Use bold readable sans-serif text. Headline should be the largest text. Step labels should be medium size and easy to read on a phone screen.
Rules: No extra words. Keep spelling exact. Use strong contrast. Leave safe margins. Make the layout clean and professional.
The improved version gives the model a job, a layout, exact copy, visual style, and QA rules.
Pattern Library: NanoBanana Prompt Templates
1. Poster Prompt Template
Use this for events, masterclasses, webinars, music releases, workshops, and promo flyers.
Create a premium [ASPECT RATIO] poster for [EVENT / PRODUCT / OFFER].
Brand style: [black and gold, luxury, cinematic, clean, bold, urban professional, futuristic]
Audience: [Describe target audience]
Main visual: [Describe subject, background, person, product, or symbolic image]
Text content:
Headline: "[EXACT HEADLINE]"
Subheadline: "[EXACT SUBHEADLINE]"
Details: "[DATE / TIME / LOCATION / PRICE]"
CTA: "[EXACT CTA]"
Layout:
- Place the headline at the top in large bold type.
- Place the main visual in the center.
- Place event details in a clean information block below the visual.
- Place the CTA at the bottom center.
- Leave safe margins on all sides.
Rules: Do not add extra words. Do not change dates, names, prices, or brand spelling.
Create a premium [ASPECT RATIO] poster for [EVENT / PRODUCT / OFFER].
Brand style: [black and gold, luxury, cinematic, clean, bold, urban professional, futuristic]
Audience: [Describe target audience]
Main visual: [Describe subject, background, person, product, or symbolic image]
Text content:
Headline: "[EXACT HEADLINE]"
Subheadline: "[EXACT SUBHEADLINE]"
Details: "[DATE / TIME / LOCATION / PRICE]"
CTA: "[EXACT CTA]"
Layout:
- Place the headline at the top in large bold type.
- Place the main visual in the center.
- Place event details in a clean information block below the visual.
- Place the CTA at the bottom center.
- Leave safe margins on all sides.
Rules: Do not add extra words. Do not change dates, names, prices, or brand spelling.
2. Menu Prompt Template
Use this for restaurants, food trucks, digital menus, beauty service menus, pricing cards, or offer menus.
Create a clean [ASPECT RATIO] menu design for [BUSINESS TYPE].
Brand style: [Color palette, mood, typography style]
Menu title: "[EXACT MENU TITLE]"
Sections:
[SECTION 1 NAME]
- [ITEM 1] — [PRICE]
- [ITEM 2] — [PRICE]
Layout:
- Use a clear menu board structure.
- Section titles should be bold and easy to scan.
- Item names and prices should align neatly.
Rules: Do not invent items. Do not change prices. Make every item readable.
Create a clean [ASPECT RATIO] menu design for [BUSINESS TYPE].
Brand style: [Color palette, mood, typography style]
Menu title: "[EXACT MENU TITLE]"
Sections:
[SECTION 1 NAME]
- [ITEM 1] — [PRICE]
- [ITEM 2] — [PRICE]
Layout:
- Use a clear menu board structure.
- Section titles should be bold and easy to scan.
- Item names and prices should align neatly.
Rules: Do not invent items. Do not change prices. Make every item readable.
3. Infographic Prompt Template
Use this for educational graphics, step-by-step guides, comparison charts, data visuals, and explainer layouts.
Create a clean [ASPECT RATIO] infographic for [AUDIENCE / PURPOSE].
Title: "[EXACT TITLE]"
Brand style: [Color palette, mood, design style]
Sections:
Section 1: [TITLE] — [CONTENT]
Section 2: [TITLE] — [CONTENT]
Section 3: [TITLE] — [CONTENT]
Layout: [Describe structure — vertical flow, grid, comparison columns, numbered steps]
Typography: Bold section headers, readable body text, high contrast.
Rules: No extra words. Keep all facts exact. Make it readable on a phone screen.
Create a clean [ASPECT RATIO] infographic for [AUDIENCE / PURPOSE].
Title: "[EXACT TITLE]"
Brand style: [Color palette, mood, design style]
Sections:
Section 1: [TITLE] — [CONTENT]
Section 2: [TITLE] — [CONTENT]
Section 3: [TITLE] — [CONTENT]
Layout: [Describe structure — vertical flow, grid, comparison columns, numbered steps]
Typography: Bold section headers, readable body text, high contrast.
Rules: No extra words. Keep all facts exact. Make it readable on a phone screen.
4. Multilingual / Translation Prompt Template
Use this for localized ads, translated product graphics, multilingual social content, and international campaigns.
Create a [ASSET TYPE] in [TARGET LANGUAGE] for [AUDIENCE / PURPOSE].
Language: All visible text should be in [TARGET LANGUAGE].
Text content:
Headline: "[TRANSLATED HEADLINE]"
Subheadline: "[TRANSLATED SUBHEADLINE]"
CTA: "[TRANSLATED CTA]"
Keep unchanged:
Brand name: "[BRAND NAME]"
Handle: "[SOCIAL HANDLE]"
Price: "[PRICE]"
Date: "[DATE]"
Rules: Make the text native, natural, and readable. Do not mix languages unless specified. Do not change brand names, prices, dates, or handles.
Create a [ASSET TYPE] in [TARGET LANGUAGE] for [AUDIENCE / PURPOSE].
Language: All visible text should be in [TARGET LANGUAGE].
Text content:
Headline: "[TRANSLATED HEADLINE]"
Subheadline: "[TRANSLATED SUBHEADLINE]"
CTA: "[TRANSLATED CTA]"
Keep unchanged:
Brand name: "[BRAND NAME]"
Handle: "[SOCIAL HANDLE]"
Price: "[PRICE]"
Date: "[DATE]"
Rules: Make the text native, natural, and readable. Do not mix languages unless specified. Do not change brand names, prices, dates, or handles.
Aspect Ratio Cheat Sheet
| Format | Best For | Prompt Instruction |
|---|---|---|
| 9:16 | Reels covers, Stories, vertical posters | "Create a 9:16 vertical layout with stacked text zones." |
| 1:1 | Instagram posts, carousel covers | "Create a square 1:1 design with centered hierarchy." |
| 4:5 | Instagram feed promos | "Create a 4:5 mobile-first promotional graphic." |
| 16:9 | Website heroes, YouTube thumbnails, banners | "Create a 16:9 horizontal layout with safe margins." |
| 3:4 | Posters, educational graphics, printable handouts | "Create a 3:4 portrait layout with clean section spacing." |
Typography Checklist for NanoBanana Prompts
Before generating, include these typography rules inside your prompt:
Typography rules:
- Use bold readable headline text.
- Use clean sans-serif body text.
- Keep strong contrast between text and background.
- Avoid tiny text.
- Keep the headline largest.
- Keep body copy medium size.
- Keep CTA clear and separated.
- Do not add extra words.
- Keep spelling exact.
Quality-control rules:
- All names, dates, prices, and numbers must be exact.
- No misspellings.
- No duplicate letters.
- No invented details.
- Leave safe margins.
- Make the design readable on a phone screen.
Typography rules:
- Use bold readable headline text.
- Use clean sans-serif body text.
- Keep strong contrast between text and background.
- Avoid tiny text.
- Keep the headline largest.
- Keep body copy medium size.
- Keep CTA clear and separated.
- Do not add extra words.
- Keep spelling exact.
Quality-control rules:
- All names, dates, prices, and numbers must be exact.
- No misspellings.
- No duplicate letters.
- No invented details.
- Leave safe margins.
- Make the design readable on a phone screen.
Final Caveat: AI Text Still Needs Human QA
NanoBanana Pro is a major step forward for text-heavy image generation, but it should not replace final review. Before publishing, always check: names, dates, prices, URLs, social handles, translations, legal claims, small text readability, brand spelling, and CTA accuracy.
The professional workflow is:
Prompt → Generate → Review → Correct → Regenerate → Final QA → Publish
That is how designers, marketers, educators, and localization teams should use NanoBanana: not as a magic button, but as a fast creative production partner.