Create stunning AI images directly from WhatsApp with Gemini

📱🤖 Create Stunning AI Images Directly from WhatsApp with Gemini

This workflow transforms your WhatsApp into a personal AI image generation studio. Simply send a text message with your idea, and this bot will use the advanced prompt engineering capabilities of Gemini 2.5 Pro to craft a detailed, artistic prompt. It then uses Gemini 2.0 Flash to generate a high-quality image from that prompt and sends it right back to your chat.

It's a powerful yet simple way to bring your creative ideas to life, all from the convenience of your favorite messaging app!

What this workflow does

• Listens for WhatsApp Messages: The workflow starts automatically when you send a message to your connected WhatsApp number.
• Enhances Your Idea with AI: It takes your basic text (e.g., "a knight on a horse") and uses Gemini 2.5 Pro to expand it into a rich, detailed prompt perfect for image generation (e.g., "A cinematic, full-body shot of a stoic knight in gleaming, ornate silver armor, riding a powerful black warhorse through a misty, ancient forest. The scene is lit by ethereal morning sunbeams piercing the canopy, creating dramatic volumetric lighting and long shadows. Photorealistic, 8K, ultra-detailed, award-winning fantasy concept art.").
• Generates a Unique Image: It sends this enhanced prompt to the Google Gemini 2.0 Flash image generation API.
• Prepares the Image: The API returns the image in Base64 format, and the workflow instantly converts it into a binary file.
• Sends it Back to You: The final, high-quality image is sent directly back to you in the same WhatsApp chat.

Nodes Used

• 🟢 WhatsApp Trigger: The entry point that listens for incoming messages.
• 🧠 LangChain Chain (LLM): Uses Gemini 2.5 Pro for advanced prompt engineering.
• ➡️ HTTP Request: Calls the Google Gemini 2.0 Flash API to generate the image.
• 🔄 Convert to File: Converts the Base64 image data into a sendable file format.
• 💬 WhatsApp: Sends the final image back to the user.

Prerequisites

To use this workflow, you will need:

• An n8n instance.
• A WhatsApp Business Account connected to n8n. You can find instructions on how to set this up in the n8n docs.
• A Google Gemini API Key. You can get one for free from Google AI Studio.

How to use this workflow

1. Get your Google Gemini API Key: Visit the Google AI Studio and create a new API key.
2. Configure the Gemini 2.5 Pro Node:

• In the n8n workflow, select the Gemini 2.5 Pro node.
• Under 'Connect your account', click 'Create New' to add a new credential.
• Paste your Gemini API key from the previous step and save.

1. Configure the Generate Image (HTTP Request) Node:

• Select the Generate Image node.
• In the properties panel on the right, find the Query Parameters section.
• In the 'Value' field for the key parameter, replace "Your API Key" with your actual Google Gemini API Key.

1. Connect WhatsApp:

• Select the WhatsApp Trigger node.
• Follow the instructions to connect your WhatsApp Business Account credential. If you haven't created one, the node will guide you through the process.

1. Activate and Test:

• Save the workflow using the button at the top right.
• Activate the workflow using the toggle switch.
• Send a message to your connected WhatsApp number (e.g., "A futuristic city in the style of Van Gogh"). The bot will process your request and send a stunning AI-generated image right back to you!