Gmail email categorization & auto reply with GPT-4o and Google Sheets
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 15 nodes and runs on Gmail events. Along the way it connects Gmail, OpenAI Chat Model, OpenAI and Google Sheets.
How it runs
Trigger: On Gmail events.
- Text Classifier: classifies text into categories with AI, with model: OpenAI Chat Model
- Save Priority Mail (Gmail): add labels
- Save Advertisement Mail (Gmail): add labels
- Save Inquiry Mail (Gmail): add labels
- Save Finance Mail (Gmail): add labels
- Generate Priority Draft (OpenAI): uses OpenAI
- Generate Ad Summary (OpenAI): uses OpenAI
- Generate Finance Summary (OpenAI): uses OpenAI
- Generate Inquiry Reply (OpenAI): uses OpenAI
- Create Draft (Gmail): work with draft
…plus 3 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
- Still check Gmail Trigger below v1.4 runs as v1.4 (drafts skipped, max emails per poll) (Gmail Trigger).
Nodes used (6)
- Gmail Trigger
n8n-nodes-base.gmailTrigger - Text Classifier
@n8n/n8n-nodes-langchain.textClassifier - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Gmail
n8n-nodes-base.gmail - OpenAI
@n8n/n8n-nodes-langchain.openAi - Google Sheets
n8n-nodes-base.googleSheets
From the author
🧭 Description This section automates Gmail message handling through AI-powered classification and response. Using the LangChain Text Classifier, incoming emails are analyzed and sorted into four categories — High Priority, Advertisement, Inquiry, and…