LinkedIn Content Factory with OpenAI Research & Replicate Branded Images

Template Description: > Never run out of high-quality LinkedIn content again. This workflow is a complete content factory that takes a simple topic from a Google Sheet, uses AI to research a trending angle, writes a full post, generates a unique and on-brand image, and publishes it directly to your LinkedIn profile.

This template is designed for brands and creators who want to maintain a consistent, high-quality social media presence with minimal effort. The core feature is its ability to generate visuals that adhere to a specific, customizable brand style guide.

🚀 What does this workflow do?

Pulls content ideas from a Google Sheet acting as your content calendar. Uses an AI Researcher (OpenAI + SerpAPI) to find the most recent and engaging news or trends related to your topic. Employs an AI Writer to draft a complete, professional LinkedIn post with a catchy title, engaging text, and relevant hashtags. Generates a unique, on-brand image for every post using Replicate, based on a customizable style guide (colors, composition, mood) defined within the workflow. Publishes the post with its image** directly to your LinkedIn profile. Updates the status** in your Google Sheet to "done" to avoid duplicate posts.

🎯 Who is this for?

Marketing Teams:** Automate your content calendar and ensure brand consistency across all visuals. Social Media Managers:** Save hours of research, writing, and design work. Solopreneurs & Founders:** Maintain an active, professional LinkedIn presence without a dedicated content team. Content Creators:** Scale your content production and focus on strategy instead of execution.

✨ Benefits

End-to-End Automation:** From a single keyword to a published post, the entire process is automated. Brand Consistency:** The AI image generator follows a strict, customizable style guide, ensuring all your visuals feel like they belong to your brand. Always Relevant Content:** The AI research step ensures your posts are based on current trends and news, increasing engagement. Massive Time Savings:** Automates research, copywriting, and graphic design in one seamless flow. Content Calendar Integration:** Easily manage your content pipeline using a simple Google Sheet.

⚙️ How it Works

Get Topic: The workflow fetches the next "Pending" topic from your Google Sheet. AI Research: An AI Agent uses SerpAPI to research the topic and identify a viral angle. AI Writing: A second AI Agent takes the research and writes the full LinkedIn post. Generate Image Prompt: A Code node constructs a detailed prompt, merging the post's content with your defined brand style guide. Generate Image: The prompt is sent to Replicate. The workflow waits and checks periodically until the image is ready. Publish: The generated text and image are published to your LinkedIn account. Update Status: The workflow archives the image to Google Drive and updates the topic's status in your Google Sheet to "done".

📋 n8n Nodes Used

Google Sheets Langchain Agent (with OpenAI & SerpAPI) Code HTTP Request Wait / If LinkedIn Google Drive

🔑 Prerequisites

An active n8n instance. Google Account** with Sheets & Drive access (OAuth2 Credentials). OpenAI Account & API Key**. SerpAPI Account & API Key** (for the research tool). Replicate Account & API Token**. LinkedIn Account** (OAuth2 Credentials). A Google Sheet** with "Topic" and "Status" columns.

🛠️ Setup

Import the workflow into your n8n instance. Configure All Credentials: Go through the workflow and connect your credentials for Google, OpenAI, SerpAPI, Replicate, and LinkedIn in their respective nodes. Link Your Google Sheet: In the 1. Get Pending Topic... node, select your spreadsheet and sheet. Do the same for the final 8. ...Update Status node. Customize Your Brand Style (Highly Recommended): In the 4. Generate Branded Image Prompt (Code) node, edit the fixedImageStyleDetails variable. Change the RAL color codes and descriptive words to match your brand's visual identity. Populate Your Content Calendar: Add topics to your Google Sheet and set their status to "Pending". Activate the workflow!