Google’s Free Image Generator Just Got Scary Good 🍌

Gemini Imagen 3 (Nano Banana Pro) does what Midjourney charges $30/month for. Here’s the setup.

Google shipped a major upgrade to their image generator last week. Zero fanfare. Just quietly became the best free option available.

Example: An infographic of the common house plant, String of Turtles, with information on origins, care essentials and growth patterns. Prompt: Create an infographic about this plant focusing on interesting information.

What changed:

• Photorealistic output that rivals Midjourney V7

Example 2: Obscure or enlighten a section of your image with lighting controls to achieve specific dramatic effects. Prompt: Generate an image with an intense chiaroscuro effect. The man should retain his original features and expression. Introduce harsh, directional light, appearing to come from above and slightly to the left, casting deep, defined shadows across the face. Only slivers of light illuminating his eyes and cheekbones, the rest of the face is in deep shadow.

• Text that actually renders correctly inside images

Example 3: “Step-by-step infographic for making Elaichi Chai (cardamom tea), demonstrating the ability to visualize recipes and real-world information. Prompt: Create an infographic that shows how to make elaichi chai

• 4K upscaling (Topaz charges $200 for this)

• Edit any part of any image with a sentence

Example 4: Bring out the details of your composition by adjusting the depth of field of focal point (e.g.: focusing on the flowers). Prompt: Focus on the flowers.

• Same character across multiple generations

I spent a week testing it against Midjourney and DALL-E. For 80% of use cases, Imagen 3 is now good enough. For text and editing, it’s actually better.

Here’s how to set it up and the prompts that work.

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Quick Start

Step 1: Go to gemini.google.com

Step 2: Sign in with Google

Step 3: Select “Imagen 3” in the model dropdown

Step 4: Type your prompt

Free tier gives you plenty of generations. Gemini Advanced ($20/month) adds speed and priority, but most people can stay free.

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What’s Inside the Ultimate Nano Banana Guide

The Setup (5 minutes)

• Account configuration for best results

• Settings most people miss

• How to organize your generations

12 Copy-Paste Prompts

1. Product photography (studio quality)

2. LinkedIn headshots from selfies

3. Article → infographic (paste URL)

4. 4K upscaling

5. Style transfers

6. Text overlays that work

7. Background replacement

8. Character sheets

9. Packaging mockups

10. App screen mockups

11. Photo restoration

12. Batch variations

The Prompting System

• The 5-part formula for Imagen 3

• Quality keywords that change output

• Lighting vocabulary

• Composition shortcuts

Editing Workflows

Change colors with one sentence

• Swap backgrounds

• Remove objects

• Fix specific areas

When to Use What

• Imagen 3 (Nano Banana vs. Midjourney vs. DALL-E comparison

• Which tool wins for each use case

• When free is enough vs. when to pay

Here’s the full guide (free trial available for everyone):

Gemini Imagen 3🍌: Complete Setup and Prompt Library