Automated Multilingual Gmail Reply Generator with GPT-4

This n8n workflow automates the process of handling incoming Gmail messages, assessing whether a reply is needed, detecting the message language, and generating appropriate draft responses in English or Japanese using OpenAI GPT-4o. The workflow starts by monitoring a Gmail inbox for new messages with a specific label, then uses OpenAI’s language models to determine if a reply is necessary and to identify the message’s language. Based on this detection, it generates a culturally and linguistically appropriate draft reply—either in English or Japanese—and saves it as a draft within the same Gmail thread. This automation is particularly useful for businesses or customer support teams managing multilingual inquiries, streamlining responses while maintaining professionalism and cultural sensitivity.