Smart Gmail Labeling Automation with Text Classifier and GPT-5

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

What this workflow does This workflow automatically organizes your Gmail inbox by fetching recent emails, analyzing their content with AI, and applying the appropriate Gmail labels based on the res...

Best for

AI Summarization automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, n8n-nodes-base.splitinbatches, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.gmail, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.textclassifier

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Billy Christi.

Original n8n.io source

1.1 Workflow description

Title: Smart Gmail Labeling Automation with Text Classifier and GPT-5
Workflow name: Smart Gmail Labeling Automation with Text Classifier and GPT-5

What this workflow does

This workflow automatically organizes your Gmail inbox by fetching recent emails, analyzing their content with AI, and applying the appropriate Gmail labels based on the results.

Step by step:

Schedule Trigger runs the workflow automatically at your chosen interval
Gmail Fetch retrieves the latest emails from your inbox
Loop Over Items processes each email individually
AI Text Classifier analyzes email subject and body content to determine the right category
Add Labels applies the matching Gmail label according to the AI classification
Loop Back continues until all emails are processed and organized

How to set up

Connect your Gmail account to the Gmail nodes for fetching emails and adding labels
Add your OpenAI API key to the OpenAI Chat Model node for AI-powered classification
Configure the schedule trigger to run at your preferred interval (default: every 5 minutes)
Customize email categories in the Label Classifier node based on your organizational needs
Set up Gmail labels that match your classification categories in your Gmail account
Adjust the time range for fetching emails (default: last 5 minutes) and email limit (default: 10)
Test the workflow with a few sample emails to ensure proper classification and labeling
Monitor the workflow execution to verify emails are being processed and labeled correctly

How to customize this workflow to your needs

Adjust classification categories: modify the Label Classifier node to include categories like "Work", "Bills", "Social", "Newsletters", or any custom categories you need
Change time intervals: customize the schedule trigger to run hourly, daily, or at specific times based on your email volume
Add more label actions: create additional Gmail label nodes for more granular categorization (urgent, follow-up, archive, etc.)

Need help customizing?

Contact me for consulting and support:
📧 [email protected]

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 2 - Loop Over Items

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 3 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 4 - Add Label (High Priority)

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 5 - Add Label (Personal)

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 6 - Add Label (Promotions)

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 7 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Label Classifier

Type / Role: @n8n/n8n-nodes-langchain.textClassifier - textClassifier
Config choices: Version 1

Block 13 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Gmail - Get Emails

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 15 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Smart Gmail Labeling Automation with Text Classifier and GPT-5
Complexity	advanced
Nodes	15
Categories	AI Summarization, Multimodal AI
Author	Billy Christi
Published	20 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/7633/7633.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source AI Summarization workflows Multimodal AI workflows

Frequently asked questions

What does Smart Gmail Labeling Automation with Text Classifier and GPT-5 do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your AI Summarization, Multimodal AI use case.

Billy Christi

15 workflows

Nodes

n8n-nodes-base.scheduletrigger n8n-nodes-base.splitinbatches @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.gmail n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.textclassifier

Complexity

advanced

Published 20 Aug 2025

Likes 0

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Install path: /data/workflows/7633/7633.json

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Smart Gmail Labeling Automation with Text Classifier and GPT-5

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What this workflow does

How to set up

How to customize this workflow to your needs

Need help customizing?

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Loop Over Items

Block 3 - OpenAI Chat Model

Block 4 - Add Label (High Priority)

Block 5 - Add Label (Personal)

Block 6 - Add Label (Promotions)

Block 7 - Sticky Note

Block 8 - Sticky Note1

Block 9 - Sticky Note2

Block 10 - Sticky Note4

Block 11 - Sticky Note5

Block 12 - Label Classifier

Block 13 - Sticky Note6

Block 14 - Gmail - Get Emails

Block 15 - Sticky Note7

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions