Seo blog content automation with GPT-4o-mini and human approval in Google Docs

Overview This n8n workflow automates the entire content creation process for SEO blog posts, from topic submission and AI drafting to human approval, revision, and final storage in Google Docs. It ensures high-quality, SEO-optimized content is generated efficiently while keeping a human in the loop for quality control.

Prerequisites To use this workflow, you need the following accounts and credentials:

Google Sheets Account: To manage the content tracker. The sheet must contain columns for Topic, Reference URL, Title, Status, and Link to document.

OpenAI API Key (for GPT-4o-mini): To power the initial content drafting and subsequent revisions.

Gmail Account: To send the content for human approval and wait for feedback.

Google Docs Account: To create and store the final approved blog posts.

How It Works The workflow operates in four main stages: Topic Submission, AI Content Creation, Human Approval & Revision Loop, and Final Publishing.

Stage 1: Topic Submission and Tracking This stage captures a new blog topic and adds it to the content tracker.