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AI-Powered LinkedIn Content Engine (n8n + OpenAI + Perplexity + Replicate)

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Created by: Mariano Kostelec || marianokostelec

Mariano Kostelec

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Last update 6 hours ago

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A fully automated content engine that researches, writes, scores, and visualizes LinkedIn posts — built with n8n, OpenAI, Perplexity, and Replicate.

What it does:
✅ Researches any topic using real-time data
✅ Writes a personalized post in your voice
✅ Refines tone and structure
✅ Generates abstract, high-quality visual assets
✅ Scores the output and saves it to Google Sheets

How it works:

  • Triggered when you change a row status in Google Sheets
  • Uses Perplexity to research
  • GPT-4o (OpenAI) to create and polish content
  • Replicate (FLUX Pro) to generate images
  • Scores the post using heuristics
  • Appends everything back to your sheet