Repurpose Reddit posts into AI tweets with Gemini and Google Sheets

Automatically turns trending Reddit posts into punchy, first-person tweets powered by Google Gemini AI, Reddit, and Twitter API, with Google Sheets logging.

🧩 Overview

This workflow repurposes Reddit content into original tweets every few hours.
It’s perfect for creators, marketers, or founders who want to automate content inspiration while keeping tweets sounding human, edgy, and fresh.

Core automation loop:

1. Fetch trending Reddit posts from selected subreddits.
2. Use Gemini AI to write a short, first-person tweet.
3. Check your Google Sheet to avoid reusing the same Reddit post.
4. Publish to Twitter automatically.
5. Log tweet + Reddit reference in Google Sheets.

🧠 Workflow Diagram

🪄 How It Works

1️⃣ Every 2 hours → the workflow triggers automatically.
2️⃣ It picks a subreddit (like r/automation, r/n8n, r/SaaS).
3️⃣ Gemini AI analyzes a rising Reddit post and writes a fresh, short tweet.
4️⃣ The system checks your Google Sheet to ensure it hasn’t used that Reddit post before.
5️⃣ Once validated, the tweet is published via Twitter API and logged.

🧠 Example Tweet Output

📊 Logged Data (Google Sheets)

Each tweet is automatically logged for version control and duplication checks.

⚙️ Key Components

🧩 Setup Tutorial

1️⃣ Prerequisites

2️⃣ Import the Workflow

1. Download Reddit Twitter Automation.json.
2. In n8n, click Import Workflow → From File.
3. Connect your credentials:
   • Gemini → Gemini
   • Reddit → Reddit account
   • Twitter → X
   • Google Sheets → Gsheet

3️⃣ Configure Google Sheet

Your sheet must include these columns:

4️⃣ Customize Subreddits

In the Code Node, update this array to choose which subreddits to monitor:

const subreddits = [
  "n8n",
  "microsaas",
  "SaaS",
  "automation",
  "n8n_ai_agents"
];