Free AI Image Generator with Gemini/ChatGPT in n8n

This n8n workflow enables fully automated, prompt-driven AI image generation at scale. Triggered by a chat message in n8n or Telegram, it processes your input into a structured prompt, sends it to Google Gemini's image model (with OpenAI integration option), and handles the output for preview, download, or saving to disk. Default size is 1080x1920 pixels, customizable via the 'Fields - Set Values' node.

Key benefits include time-saving automation for creating marketing visuals, character art, digital posters, storyboards, or personal images without manual tools. It ensures feasibility checks on raw image data and fetches results via HTTP for seamless integration back into chat or local storage, making it deployable for high-volume needs.

Use cases span creative and professional applications: generate training materials for HR/L&D, social media graphics, product mockups, or custom illustrations. Setup is straightforward—import the workflow, configure credentials for Telegram and AI Agent nodes, activate response/save options, and start prompting in seconds for professional results.