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LinkedIn content factory with OpenAI research & Replicate branded images

OnurOnur
1042 views
2/3/2026
n8n
Official Page

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

  1. Get Topic: The workflow fetches the next "Pending" topic from your Google Sheet.
  2. AI Research: An AI Agent uses SerpAPI to research the topic and identify a viral angle.
  3. AI Writing: A second AI Agent takes the research and writes the full LinkedIn post.
  4. Generate Image Prompt: A Code node constructs a detailed prompt, merging the post's content with your defined brand style guide.
  5. Generate Image: The prompt is sent to Replicate. The workflow waits and checks periodically until the image is ready.
  6. Publish: The generated text and image are published to your LinkedIn account.
  7. 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

  1. Import the workflow into your n8n instance.
  2. Configure All Credentials: Go through the workflow and connect your credentials for Google, OpenAI, SerpAPI, Replicate, and LinkedIn in their respective nodes.
  3. 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.
  4. 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.
  5. Populate Your Content Calendar: Add topics to your Google Sheet and set their status to "Pending".
  6. Activate the workflow!

n8n LinkedIn Content Factory with OpenAI Research & Branded Images

This n8n workflow automates the creation and publishing of LinkedIn content. It leverages AI for research and content generation, and integrates with Google Sheets for content management, allowing you to streamline your social media strategy.

What it does

This workflow simplifies your content creation process by:

  1. Triggering Manually: The workflow is initiated manually, allowing you to control when new content is generated and published.
  2. Retrieving Content Ideas: It reads data from a Google Sheet, presumably to get content ideas, topics, or drafts.
  3. Conducting AI Research: It uses an AI Agent with a SerpAPI tool to perform Google searches based on the input from Google Sheets, gathering relevant information.
  4. Generating AI Content: The AI Agent then utilizes an OpenAI Chat Model to generate content, likely incorporating the research findings.
  5. Parsing AI Output: A Structured Output Parser extracts specific data from the AI-generated content, ensuring it's in a usable format.
  6. Conditional Processing: An "If" node checks a condition, potentially determining if the content is ready for publishing or requires further processing.
  7. Editing Fields (Set): If the condition is met, an "Edit Fields" node (Set) transforms or prepares the data for LinkedIn.
  8. Publishing to LinkedIn: The processed content is then published to LinkedIn.
  9. Waiting (Optional Delay): A "Wait" node introduces a delay, which could be used for rate limiting or scheduling posts.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running instance of n8n.
  • Google Sheets Account: Configured credentials for Google Sheets to read your content ideas.
  • OpenAI API Key: Credentials for OpenAI to utilize its chat model for content generation.
  • SerpAPI API Key: Credentials for SerpAPI to enable Google search capabilities for the AI agent.
  • LinkedIn Account: Configured credentials for LinkedIn to publish posts.

Setup/Usage

  1. Import the Workflow: Import the provided JSON into your n8n instance.
  2. Configure Credentials:
    • Set up your Google Sheets credentials.
    • Set up your OpenAI API Key credentials.
    • Set up your SerpAPI API Key credentials.
    • Set up your LinkedIn credentials.
  3. Configure Google Sheets Node (ID: 18):
    • Specify the spreadsheet ID and sheet name where your content ideas are stored.
    • Ensure the sheet contains the necessary columns that the AI agent will use for research and content generation.
  4. Configure AI Agent Node (ID: 1119):
    • Ensure the SerpAPI tool (ID: 1199) and OpenAI Chat Model (ID: 1153) are correctly configured within the AI Agent.
    • Adjust the agent's prompt and instructions to guide its research and content generation according to your needs.
  5. Configure Structured Output Parser Node (ID: 1179):
    • Define the schema or structure for the output you expect from the AI-generated content.
  6. Configure If Node (ID: 20):
    • Set the condition that determines whether the generated content should proceed to LinkedIn publishing. This could be based on content length, keywords, or a specific flag from the AI output.
  7. Configure Edit Fields Node (ID: 38):
    • Map the parsed AI output to the fields required by the LinkedIn node for posting (e.g., post text, image URL).
  8. Configure LinkedIn Node (ID: 367):
    • Specify the type of LinkedIn post (e.g., text post, image post) and map the content from the "Edit Fields" node.
  9. Activate and Execute:
    • Activate the workflow.
    • Click "Execute workflow" on the "Manual Trigger" node (ID: 838) to run it.

This workflow provides a powerful foundation for automating your LinkedIn content strategy, allowing you to focus on high-level content planning rather than manual execution.

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