How to Create Stunning Infographic Posters in Nano Banana Pro Using Just ONE Prompt

If you’ve ever wished you could create beautiful infographic posters without spending hours designing, well… you’re going to love this. Believe it or not, I discovered a special prompt that lets you generate clean, modern, and super-professional infographic visuals simply by entering the title. Yup, that’s it. No complicated settings, no manual layouting—just write the title, and boom, an infographic appears like magic.

When I first tested this method, I honestly didn’t expect much. But the results? Crazy good. The poster layout came out clean, the sections were neatly arranged, the colors were well-matched to the topic, and everything looked like it came from a professional designer. So today, I’m going to share that exact prompt with you. You can use it to make infographics for school, business, social media content, educational materials, or even YouTube thumbnails.

Ready? Let’s get started!

Step 1: Prepare the Prompt

Before anything else, we need the main prompt. This is the “engine” that powers everything. With this prompt, you’re basically telling Nano Banana Pro (via Google Gemini) to automatically analyze your title, detect the topic, decide the layout, generate the content, choose the color palette, assign icon suggestions, and even create the perfect typography.

Here’s the exact prompt I personally use:

You are a professional visual designer specialized in educational and data-driven infographics.

Generate a complete infographic design prompt based on the user’s inputs below:

USER INPUT:

• Title: {fill here}

• Target: {fill here}

• Aspect Ratio: {fill here}

SYSTEM LOGIC (AUTOMATED BY YOU)

You must automatically:

1. Analyze the Title

• Detect the topic category: technology, science, education, AI, business, finance, health, lifestyle, productivity, etc.

• Determine the best infographic structure:

  • Step-by-step guide

  • Checklist

  • Timeline

  • Comparison

  • Key points

  • Framework

  • Do & Don’t

  • Tips & tricks

2. Generate Infographic Content (Auto-Generated by You)

You must generate:

• Main sections (3–7 depending on topic)

• Section titles

• Bullet points

• Short explanations

• Icon suggestions

• A “Key Takeaways” summary box

• Color theme recommendations

• Layout sections based on the chosen aspect ratio

All content must be concise, clear, and visually clean.

3. Typography Automation

If no typography is provided:

• Auto-generate:

  • Main headline (from the Title)

  • Supporting subtitle

  • Section headers

  • Concise bullet points

  • Optional CTA/footer note

Typography must be bold, modern, readable, and mobile-friendly.

4. Visual Layout Logic

You must automatically generate:

• Clean segmentation based on the aspect ratio

• Icons for each section

• Proper spacing and hierarchy

• Modern flat-design aesthetics

• Color palette fitting the topic

• Readable layout for the specified dimensions

FINAL INFOGRAPHIC POSTER PROMPT TO OUTPUT

Create a high-quality educational infographic for: {TITLE}

Using the aspect ratio: {ASPECT RATIO}

Infographic Purpose:

Present the topic in a simple, structured, informative, and visually engaging manner.

Content (Auto-Generated by You):

• 3–7 main sections based on topic analysis

• Each section includes:

  • A bold section header

  • 2–4 short bullet points

  • Optional micro-tips or warnings

• A bottom “Key Takeaways” summary box

Layout & Composition:

• Use the specified aspect ratio: {ASPECT RATIO}

• Clean vertical or horizontal layout depending on the ratio

• Proper spacing for readability

• Section blocks with soft rounded shapes

• Icons paired with each major point

• Clear visual hierarchy (Header → Subtitle → Sections → Summary)

Visual Style:

• Modern flat or semi-flat infographic style

• Smooth gradients or pastel backgrounds

• High contrast for text clarity

• Subtle shadows and minimalist styling

• Professional, clean, easy-to-read look

Typography:

• Bold headline from “{TITLE}”

• Auto-generated subtitle

• Strong, readable section headers

• Medium-weight bullets

• Optional CTA/footer

Color Palette (Auto-Generated by You):

Choose colors based on detected topic:

• Tech / AI → Blue, cyan, purple

• Business / Finance → Navy, gold, gray

• Education → Blue, yellow

• Health / Wellness → Green, teal

• Safety / Warnings → Red, orange

• Creative → Pink, violet, teal

Branding (Optional):

• Logo placeholder

• QR code placeholder

• Small footer note

Technical Requirements:

• Use the exact aspect ratio: {ASPECT RATIO}

• High resolution and print-ready

• Safe margins around all text

END RESULT

With this template, the user only inputs:

• Title

• Aspect Ratio

→ and You automatically generate all infographic content and design instructions.

Now don’t worry—this might look long, but you won’t need to touch or edit any of it. What you do need to fill in is just three simple things:

You only fill in:

1. Title (e.g., Animal Metamorphosis)
2. Target audience (e.g., Elementary school students)
3. Aspect ratio (e.g., 4:5)

Once these three are filled in, you’re basically done with step one.

What to do next:

1. Copy the entire prompt
2. Open Google Gemini
3. Paste the prompt
4. Hit Send
5. Gemini will automatically generate a ready-to-use prompt that Nano Banana Pro can understand

Pretty cool, right?

Step 2: Generate the Infographic Image

Now it’s time for the fun part—actually generating the infographic.

Here’s how you do it:

1. Copy the new prompt that Gemini generated for you
2. Paste it into Nano Banana Pro (or wherever you generate the images)
3. Delete everything before the word “Create” – This is important so the AI only reads the final instructions
4. Hit Send
5. Wait a moment…
6. Boom! Your infographic poster is ready

This is honestly one of the most satisfying things ever. The fact that you can generate such clean and structured posters with just a title feels like cheating—but in a good way.

Video Tutorial (Full Guide)

If you’re the type who learns better by watching, here’s the full video tutorial that walks you through everything step by step:

I recommend watching it if you want to see exactly how the flow works in real time.

Conclusion

Creating infographic posters used to be a long process—choosing layouts, deciding color palettes, writing content, and arranging everything manually. But with this prompt-based workflow, you can skip all the difficult parts and jump straight into the fun: generating clean, modern, and beautifully structured infographics instantly.

All you need to do is fill in the title, choose an aspect ratio, and state your target audience. After that, Gemini and Nano Banana Pro take care of literally everything—from analyzing the topic to designing the visual layout.

If you’re a content creator, student, teacher, marketer, or anyone who needs visual materials regularly, this method will save you so much time. Try it once, and you may never design infographics manually again.

Happy creating—and have fun making your own stunning infographic posters with just one prompt!