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Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable

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Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable preview
Open on n8n.io

Important notice

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

1. Workflow Overview

How the sequence works: 1. A "Schedule Trigger" node activates the automation at a defined schedule. 2. An "Airtable" node will search for previously posted questions in you...

Best for

  • Social Media automation workflows
  • Multimodal AI automation workflows
  • intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.aggregate, @n8n/n8n-nodes-langchain.chainllm, n8n-nodes-base.reddit, n8n-nodes-base.airtable, n8n-nodes-base.stickynote

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title
Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable
Workflow name
Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable

How the sequence works:

  1. A "Schedule Trigger" node activates the automation at a defined schedule.
  2. An "Airtable" node will search for previously posted questions in your question database.
    1. Airtable Base Template: here
  3. An "Aggregate" node will take all the questions from Airtable and compress them to a single output.
  4. ChatGPT, or a model of your choice, will generate a discussion question based on the options in the system prompt.
  5. The discussion question will be posted to the subreddit of your choice by the "Reddit" node.
    1. You can choose between a text, image, or link post!
  6. The recently-posted discussion question will then be uploaded to your Airtable base using the "Airtable" node. This will be used to prevent ChatGPT from creating duplicate questions.

Setup Steps

The setup process will take about 5 minutes. An Airtable base template is also pre-made for you here: https://airtable.com/app6wzQqegKIJOiOg/shrzy7L9yv8BFRQdY

  1. Set the recurrence in the "Schedule" node
  2. Create an Airtable account, you can use the link here.
  3. Get an Airtable personal access token here.
  4. Configure the "Get Previous Discussions" Airtable node.
  5. Configure the options in brackets in the "Generate New Discussion" node.
  6. Set the desired subreddit to post to and the post type(text, image, or link) in the "Post Discussion" node.
  7. Configure the "Create Archived Discussion" node to map to the Airtable base(required) and specific subreddit(optional).

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 - OpenAI Chat Model

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

Block 3 - Aggregate

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

Block 4 - Generate New Discussion

Type / Role
@n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices
Version 1.4

Block 5 - Post Discussion

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

Block 6 - Create Archived Discussion

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

Block 7 - Get Previous Discussions

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

Block 8 - Sticky Note

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

Block 9 - Sticky Note1

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

Block 10 - Sticky Note2

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

Block 11 - Sticky Note3

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

Block 12 - Sticky Note4

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

Block 13 - Sticky Note5

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

3. Summary Table

Workflow Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable
Complexity intermediate
Nodes 13
Categories Social Media, Multimodal AI
Author Josh Universe
Published 22 Jul 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/6255/6255.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

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

  4. 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. 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.

Frequently asked questions

What does Generate and schedule AI discussion posts for Reddit with GPT-4 and Airtable do?

How the sequence works: 1. A "Schedule Trigger" node activates the automation at a defined schedule. 2. An "Airtable" node will search for previously posted questions in you...

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 Social Media, Multimodal AI use case.