Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets

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Important notice

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

1. Workflow Overview

Who’s it for This workflow is for marketers, founders, and content strategists who want to identify business opportunities by analyzing Reddit discussions. It’s ideal for B2B, SaaS, and tech profes...

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.googlesheets, n8n-nodes-base.reddit, n8n-nodes-base.splitinbatches, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.filter

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets
Workflow name: Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets

Who’s it for

This workflow is for marketers, founders, and content strategists who want to identify business opportunities by analyzing Reddit discussions. It’s ideal for B2B, SaaS, and tech professionals looking for fresh LinkedIn post ideas or trend insights.

How it works / What it does

This workflow automatically:

Fetches Reddit posts & comments based on a selected subreddit and keyword.
Extracts pain points & insights using OpenAI (ChatGPT) to identify key frustrations and trends.
Generates LinkedIn post ideas with headlines, hooks, and CTAs tailored for professional audiences.
Saves all results into Google Sheets for easy tracking, editing, and sharing.

It uses AI to turn unstructured Reddit conversations into actionable content marketing opportunities.

How to set up

Clone this workflow in your n8n instance.
Configure credentials:
- Reddit OAuth2 (for fetching posts & comments)
- OpenAI API key (no hardcoding—use credentials in n8n)
- Google Sheets OAuth2 (for output)
Run the workflow or trigger it using the built-in Form Trigger (provide subreddit & keyword).
Check the generated Google Sheet for analyzed insights and post suggestions.

Requirements

n8n (self-hosted or cloud)
Reddit account with API credentials
OpenAI API key (GPT-4o recommended)
Google Sheets account

How to customize the workflow

Change the AI prompt to adjust tone or depth of insights.
Add filtering logic to target posts with higher engagement.
Modify the Google Sheets output schema to include custom fields.
Extend it with Slack/Email notifications to instantly share top insights.

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 - OpenAI Chat Model

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

Block 2 - Output The Results

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 3 - Get Posts

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

Block 4 - Get many comments in a post

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

Block 5 - Loop Over Items

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

Block 6 - Suggest post topics

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 7 - Sticky Note

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

Block 8 - Generate insights

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 9 - Filter only posts with comments

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.2

Block 10 - Aggregate comments to single field

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

Block 11 - Construct post with comment object

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 12 - Merge insights with post content and comments

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

Block 13 - Construct post ideas

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 14 - Construct insights

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 15 - Merge insights and post suggestions

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 16 - Sticky Note1

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

Block 17 - Sticky Note2

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

Block 18 - On form submission

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.2

Block 19 - Create spreadsheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 20 - Prepare output columns

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 21 - Sticky Note3

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

3. Summary Table

Workflow	Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets
Complexity	advanced
Nodes	21
Categories	Content Creation, Multimodal AI
Author	clearcue.ai
Published	24 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6383/6383.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 Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets 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 Content Creation, Multimodal AI use case.

clearcue.ai

1 workflow

Nodes

@n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.googlesheets n8n-nodes-base.reddit n8n-nodes-base.splitinbatches @n8n/n8n-nodes-langchain.openai n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.agent n8n-nodes-base.filter

Complexity

advanced

Published 24 Jul 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/6383/6383.json

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Transform Reddit discussions into LinkedIn post ideas with GPT-4o and Google Sheets

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

How it works / What it does

How to set up

Requirements

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - OpenAI Chat Model

Block 2 - Output The Results

Block 3 - Get Posts

Block 4 - Get many comments in a post

Block 5 - Loop Over Items

Block 6 - Suggest post topics

Block 7 - Sticky Note

Block 8 - Generate insights

Block 9 - Filter only posts with comments

Block 10 - Aggregate comments to single field

Block 11 - Construct post with comment object

Block 12 - Merge insights with post content and comments

Block 13 - Construct post ideas

Block 14 - Construct insights

Block 15 - Merge insights and post suggestions

Block 16 - Sticky Note1

Block 17 - Sticky Note2

Block 18 - On form submission

Block 19 - Create spreadsheet

Block 20 - Prepare output columns

Block 21 - Sticky Note3

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