🎯 Automatically label Gmail emails with GPT-5 classification
⚡ 809 views · 🎯 AI Summarization & Classification
Description
How it works
This workflow automatically monitors your Gmail inbox and uses OpenAI’s GPT model to intelligently classify incoming emails into four key categories:
- High Priority - Urgent emails requiring immediate attention from executives, clients, or stakeholders
- Promotion - Marketing emails, sales offers, product launches, and event invitations
- Finance/Billing - Invoices, receipts, payment notifications, and financial records
- Customer Support - Help requests, troubleshooting queries, and service-related issues
Once classified, emails are automatically labeled in Gmail using the appropriate tags, making it easy to filter, search, and prioritize your communications.
How to set up
Requirements
- Gmail account with OAuth2 access enabled
- OpenAI API key with GPT model access
- Custom Gmail labels created for each category
Step-by-step setup
- Create Gmail Labels
- In Gmail, create these labels: “High Priority”, “Promotion”, “Finance/Billing”, “Customer Support”
- Note the label IDs (you’ll need to replace the hardcoded ones in the workflow)
- Configure Credentials
- Add your Gmail OAuth2 credentials in n8n
- Add your OpenAI API credentials
- Update Label IDs
- Replace the hardcoded label IDs in each Gmail node with your actual label IDs
- You can find label IDs by testing the Gmail node or using Gmail API
- Adjust Classification Rules
- Review the Text Classifier categories and modify descriptions to match your specific needs
- Add or remove categories as required
- Set Polling Frequency
- The workflow is set to check every minute - adjust based on your email volume
🔗 Nodes Used
Gmail, Gmail Trigger, OpenAI Chat Model, Text Classifier
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File