Multi-agent AI content creator for SEO blogs & newsletters with OpenRouter, DALL-E, Gemini

by Hemanth Arety ✓ · 2,677 views · created 2025-10-29 · Content Creation, Multimodal AI

What this workflow does

This AI workflow has 14 nodes and runs when someone submits an n8n form (“SEO Blog & Newsletter Generator”). Along the way it connects OpenRouter Chat Model, Google Gemini Chat Model, Airtable and Google Sheets. It also calls api.openai.com over HTTP.

How it runs

Trigger: When someone submits an n8n form (“SEO Blog & Newsletter Generator”).

1. Research Agent (AI Agent): runs an AI agent, with model: OpenRouter Chat Model
2. Outline Agent (AI Agent): runs an AI agent, with model: OpenRouter Chat Model
3. Writer Agent (AI Agent): runs an AI agent, with model: OpenRouter Chat Model
4. Editor & SEO Agent (AI Agent): runs an AI agent, with model: OpenRouter Chat Model
5. Route by Content Type (Switch): routes items into 1 branches
6. Blog Publisher Agent (AI Agent): runs an AI agent, with model: Google Gemini Chat Model
7. Newsletter Publisher Agent (AI Agent): runs an AI agent, with model: Google Gemini Chat Model
8. Generate Featured Image (DALL-E) (HTTP Request): calls api.openai.com (POST)
9. Save Newsletter to Google Sheets (Google Sheets): append or update
10. Convert Image to File (Convert to File): converts data to a file (to binary)

…plus 1 more step. See the full node list below.

Services it uses

OpenRouter Chat ModelGoogle Gemini Chat ModelAirtableGoogle Sheets

HTTP calls to: api.openai.com

Before you upgrade to n8n 3.0

Nodes used (9)

• n8n Form Triggern8n-nodes-base.formTrigger
• AI Agent@n8n/n8n-nodes-langchain.agent
• OpenRouter Chat Model@n8n/n8n-nodes-langchain.lmChatOpenRouter
• Switchn8n-nodes-base.switch
• Google Gemini Chat Model@n8n/n8n-nodes-langchain.lmChatGoogleGemini
• HTTP Requestn8n-nodes-base.httpRequest
• Convert to Filen8n-nodes-base.convertToFile
• Airtablen8n-nodes-base.airtable
• Google Sheetsn8n-nodes-base.googleSheets

From the author

Who is this for This workflow is designed for content creators, digital marketers, bloggers, and businesses who need to produce high-quality, SEO-optimized blog posts and newsletters at scale. Perfect for marketing teams, content agencies, solopreneurs, and…

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