Generate Character-Consistent AI Images with KIE.AI Nano Banana API

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Built by damo damo
Created on June 05, 2026

Description

Generate Character-Consistent Images with KIE.AI Nano Banana API
Overview
Generate high-quality, character-consistent AI images using KIE.AI's Nano Banana API through an intuitive form interface. This n8n workflow supports both text-to-image and image-to-image generation modes, delivering professional results at 50% lower cost than mainstream platforms.
Key Benefits:
�� Dual generation modes (text-to-image & image-to-image).
💰 20 free generations + $0.02 per additional request.
🔄 Maintains character consistency across generations.
⚡ Automated processing with 5-second polling.
Perfect for
Content creators, designers, marketers, developers, and anyone who needs to quickly create diverse AI visual content while maintaining consistent character identity across multiple generations.
Prerequisites
KIE.AI account and API key (Sign up here).
Active n8n instance with form submission capabilities.
AI prompts for image generation.
Reference images (optional, for image-to-image mode).
Quick Setup
1. Get API Key
Register at kie.ai/nano-banana and generate your API key.
2. Configure Form Fields
Set up these fields in your "On Form Submission" node:
model** (Required): Choose between google/nano-banana for text-to-image or google/nano-banana-edit for image-to-image generation.
prompt** (Required): Text description for your image generation.
img_url** (Optional): Reference image URLs for image-to-image mode (up to 5 images, separate multiple URLs with commas).
api_key** (Required): Your KIE.AI API key for authentication.
3. Test & Use
Execute the workflow
Access the generated form URL
Fill in your details and submit
Wait for processing (10-20 seconds)
Results will be displayed automatically.
Usage Tips
Better Prompts:
Include style (realistic, anime, cyberpunk), composition (close-up, wide shot), lighting (dramatic, soft), and mood (cheerful, mysterious).
Example: "Realistic cyberpunk character with neon blue lighting, close-up composition, dramatic shadows"
Common Uses:
Character design for games/stories
Social media content
Marketing materials
Product mockups
Troubleshooting
API Key Invalid**: Verify key is correct and active.
Generation Fails**: Check prompt length and content.
Keywords: Nano Banana API, character-consistent images, text-to-image, image-to-image, KIE.AI, AI image generation, n8n template

Nodes Used (1)

HTTP Request
n8n-nodes-base.httpRequest