Free AI Image Generator - n8n Automation Workflow with Gemini/ChatGPT

This n8n template demonstrates how to use AI to generate custom images from scratch - fully automated, prompt-driven, and ready to deploy at scale. Use cases are many: You can use it for marketing visuals, character art, digital posters, storyboards, or even daily image generation for your personal purposes. How It Works The flow is triggered by a chat message in N8N or via Telegram. The default image size is 1080 x 1920 pixels. To use a different size, update the values in the “Fields - Set Values” node before triggering the workflow. The input is parsed into a clean, structured prompt using a multi-step transformation process. Our AI Agent sends the final prompt to Google Gemini’s image mo

Help me set up the n8n workflow "Free AI Image Generator - n8n Automation Workflow with Gemini/ChatGPT" (https://n8n.io/workflows/5626). It uses: HTTP Request, Telegram, Code, AI Agent, Google Gemini Chat Model. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.