Auto-Categorize & Label New Gmail Emails with GPT-4o mini

This n8n workflow automates the categorization and labeling of new incoming Gmail emails using GPT-4o mini. It triggers on new emails, filters out those with existing labels, analyzes content via an AI agent, parses the output into JSON, routes via a switch node, and applies the appropriate Gmail label. All labels must be pre-created in Gmail.

Ideal for high-volume email users like teams or individuals needing organized inboxes without manual sorting. Benefits include time savings, reduced clutter, AI-powered accuracy in categorization, and seamless integration between Gmail and OpenAI—no coding required.

Use cases: Busy professionals auto-labeling client inquiries, sales leads, newsletters; support teams tagging tickets; marketers sorting campaign feedback. Customize AI prompts for specific categories, adjust trigger intervals (e.g., cron), and scale for teams with shared inboxes.