Generate Product Mockups with Gemini 2.5 Flash Image via OpenRouter

## This n8n template uses AI to generate product mockups by composing a product image onto a model or template image. This workflow provides a powerful solution for creating dynamic marketing assets and e-commerce visuals. Use cases are many: Instantly create virtual try-on images for apparel, place your product into different scenes for advertisements, or generate custom marketing material without needing a physical photoshoot. ### Good to know - This workflow uses the **OpenRouter API** to access Google's Gemini model. You will need an OpenRouter account. - The model used is `google/gemini-2.5-flash-image-preview:free`. While this specific model may be free, costs can vary depending on the model you choose and your usage on OpenRouter. Always check their latest pricing. - The workflow is triggered by a form. To use it, you must activate the workflow and use its Production URL. ### How it works - A user submits a **product image**, a **template/model image**, and a **text prompt** via the n8n form trigger. - The images are then converted to **Base64 strings** so they can be used in an API request. - A multimodal payload is sent to the OpenRouter API. Gemini's image generation model is used, which takes all 3 inputs (the two images and the prompt) to understand how to compose the final image. - Gemini generates a new image based on the instructions and returns it as a Base64 string. - The workflow extracts this output string and uses a Convert to file node to convert the data back into a binary image file, ready for use. ### How to use - First, set up your **OpenRouter API credential** in n8n. - Activate the workflow. - Open the **Production URL** for the form trigger. - Upload your product image, your template image, and write a descriptive prompt. - Submit the form to execute the workflow and generate your image. ### Requirements - An active n8n instance. - An OpenRouter account and API key. ### Customizing this workflow - You can easily change the AI model by editing the JSON body in the **HTTP Request** node. OpenRouter provides access to a wide variety of models from different providers. - Add a final step to automatically save the generated image. You can connect nodes for services like **Google Drive, AWS S3, or Dropbox** after the Convert to File node. - Replace the **Form Trigger** with a **Webhook Trigger** to run this workflow programmatically from another application or service.