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Create consistent AI characters with Google Nano Banana & upscaling via Kie.ai

Muhammad Farooq IqbalMuhammad Farooq Iqbal
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2/3/2026
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Google NanoBanana Model Image Editor for Consistent AI Influencer Creation with Kie AI Image Generation & Enhancement Workflow

This n8n template demonstrates how to use Kie.ai's powerful image generation models to create and enhance images using AI, with automated story creation, image upscaling, and organized file management through Google Drive and Sheets.

Use cases include: AI-powered content creation for social media, automated story visualization with consistent characters, marketing material generation, and high-quality image enhancement workflows.

Good to know

  • The workflow uses Kie.ai's google/nano-banana-edit model for image generation and nano-banana-upscale for 4x image enhancement
  • Images are automatically organized in Google Drive with timestamped folders
  • Progress is tracked in Google Sheets with status updates throughout the process
  • The workflow includes face enhancement during upscaling for better portrait results
  • All generated content is automatically saved and organized for easy access

How it works

  1. Project Setup: Creates a timestamped folder structure in Google Drive and initializes a Google Sheet for tracking
  2. Story Generation: Uses OpenAI GPT-4 to create detailed prompts for image generation based on predefined templates
  3. Image Creation: Sends the AI-generated prompt along with 5 reference images to Kie.ai's nano-banana-edit model
  4. Status Monitoring: Polls the Kie.ai API to monitor task completion with automatic retry logic
  5. Image Enhancement: Upscales the generated image 4x using nano-banana-upscale with face enhancement
  6. File Management: Downloads, uploads, and organizes all generated content in the appropriate Google Drive folders
  7. Progress Tracking: Updates Google Sheets with status information and image URLs throughout the entire process

Key Features

  • Automated Story Creation: AI-powered prompt generation for consistent, cinematic image creation
  • Multi-Stage Processing: Image generation followed by intelligent upscaling
  • Smart Organization: Automatic folder creation with timestamps and file management
  • Progress Tracking: Real-time status updates in Google Sheets
  • Error Handling: Built-in retry logic and failure state management
  • Face Enhancement: Specialized enhancement for portrait images during upscaling

How to use

  1. Manual Trigger: The workflow starts with a manual trigger (easily replaceable with webhooks, forms, or scheduled triggers)
  2. Automatic Processing: Once triggered, the entire pipeline runs automatically
  3. Monitor Progress: Check the Google Sheet for real-time status updates
  4. Access Results: Find your generated and enhanced images in the organized Google Drive folders

Requirements

  • Kie.ai Account: For AI image generation and upscaling services
  • OpenAI API: For intelligent prompt generation (GPT-4 mini)
  • Google Drive: For file storage and organization
  • Google Sheets: For progress tracking and status monitoring

Customizing this workflow

This workflow is highly adaptable for various use cases:

  • Content Creation: Modify prompts for different styles (fashion, product photography, architectural visualization)
  • Batch Processing: Add loops to process multiple prompts or reference images
  • Social Media: Integrate with social platforms for automatic posting
  • E-commerce: Adapt for product visualization and marketing materials
  • Storytelling: Create sequential images for visual narratives or storyboards

The modular design makes it easy to add additional processing steps, change AI models, or integrate with other services as needed.

Workflow Components

  • Folder Management: Dynamic folder creation with timestamp naming
  • AI Integration: OpenAI for prompts, Kie.ai for image processing
  • File Processing: Binary handling, URL management, and format conversion
  • Status Tracking: Multi-stage progress monitoring with Google Sheets
  • Error Handling: Comprehensive retry and failure management systems

Create Consistent AI Characters with Google Nano Banana and Upscaling via KieAI

This n8n workflow automates the process of generating consistent AI character descriptions and images, leveraging Google Nano Banana for character details and KieAI for image upscaling. It's designed to streamline content creation for AI-driven projects, ensuring uniformity across different outputs.

What it does

This workflow performs the following steps:

  1. Triggers Manually: The workflow is initiated by a manual trigger, allowing you to run it on demand.
  2. Retrieves Character Data: It fetches character information from a Google Sheet. This sheet is expected to contain details about the AI characters, which will be used as input for the AI model.
  3. Prepares AI Prompt: A "Code" node transforms the retrieved character data into a structured prompt suitable for the AI model.
  4. Generates Character Description: The "Basic LLM Chain" node, utilizing an "OpenAI Chat Model", generates a detailed character description based on the prepared prompt.
  5. Parses Structured Output: A "Structured Output Parser" extracts specific data points from the AI-generated description, ensuring the output is in a usable format.
  6. Edits Fields (Set): The "Edit Fields" (Set) node refines and structures the data for subsequent steps, potentially adding or modifying fields.
  7. Generates Image via HTTP Request: An "HTTP Request" node sends a request to KieAI (or a similar image generation API) to create an image based on the character description.
  8. Waits for Image Generation: A "Wait" node pauses the workflow for a specified duration, allowing the image generation process to complete.
  9. Retrieves Generated Image: Another "HTTP Request" node fetches the generated image from KieAI.
  10. Conditionally Saves Image: A "Switch" node checks for a specific condition (e.g., successful image generation).
    • If successful: The image is uploaded to Google Drive.
    • If unsuccessful: The workflow might handle the error or simply proceed without saving.
  11. Updates Google Sheet: Finally, the workflow updates the original Google Sheet with the newly generated character description and the link to the generated image.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Google Sheets Account: Configured credentials for Google Sheets to read and write character data.
  • Google Drive Account: Configured credentials for Google Drive to store generated images.
  • OpenAI API Key: Access to the OpenAI API for the "OpenAI Chat Model".
  • KieAI API Key/Endpoint: Access to the KieAI (or a similar image generation/upscaling service) API endpoint and credentials for image generation and retrieval.

Setup/Usage

  1. Import the workflow: Download the JSON provided and import it into your n8n instance.
  2. Configure Credentials:
    • Set up your Google Sheets credentials.
    • Set up your Google Drive credentials.
    • Configure your OpenAI API key for the "OpenAI Chat Model" node.
    • Configure the "HTTP Request" nodes with your KieAI API endpoint and any necessary authentication.
  3. Prepare Google Sheet: Ensure your Google Sheet is set up with the necessary columns for character input and output (e.g., character name, description, image URL).
  4. Customize Nodes:
    • Adjust the "Google Sheets" node (ID 18) to point to your specific spreadsheet and sheet name.
    • Modify the "Code" node (ID 834) if your input data structure differs or if you need a different prompt format.
    • Review the "Basic LLM Chain" (ID 1123) and "OpenAI Chat Model" (ID 1153) settings for desired AI model and parameters.
    • Adjust the "Structured Output Parser" (ID 1179) to match the expected output structure from your LLM.
    • Update the "HTTP Request" nodes (ID 19 and ID 19) with the correct KieAI API endpoints, request bodies, and headers.
    • Modify the "Wait" node (ID 514) duration as needed for image generation.
    • Configure the "Switch" node (ID 112) condition based on the success criteria of your image generation.
    • Adjust the "Google Drive" node (ID 58) to specify the target folder for image uploads.
  5. Execute the workflow: Click the "Execute workflow" button on the "Manual Trigger" node (ID 838) to run the workflow.

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