nano-banana-image-generator
Nano Banana Image Generator
Generate professional, non-generic images using Nano Banana 2 (Gemini 3.1 Flash Image — default) or Nano Banana Pro (Gemini 3 Pro Image).
Model Reference
| Model | API ID | Default | Speed | Cost | Aspect Ratio |
|---|---|---|---|---|---|
| Nano Banana 2 | gemini-3.1-flash-image-preview |
YES | Fast | ~$0.067/2K | Supported |
| Nano Banana Pro | gemini-3-pro-image-preview |
No | Slower | ~$0.134/2K | Supported |
Use flash (Nano Banana 2) for everything unless you have a specific reason for Pro. It's #1 on the Artificial Analysis Image Arena, half the price, and faster.
Workflow Overview
- Brainstorm Concepts - Generate 4-6 high-level visual ideas
- Select Direction - User picks the concept they like
- Source Reference Photos - Find high-res images of real people/places (if applicable)
- Optimize Prompt - Refine into a strong, detailed prompt
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