Templates / Ai-driven Instagram reels creation and publishing with GPT, Creatomate and Slack

Ai-driven Instagram reels creation and publishing with GPT, Creatomate and Slack

Ready for 3.0

by Shun Nakayama ✓ · 827 views · created 2025-12-09 · Content Creation, Multimodal AI

Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.

What this workflow does

This AI workflow has 14 nodes and runs on a schedule (every hour). Along the way it connects Slack, Facebook Graph API, OpenAI Chat Model and Google Sheets. It also calls api.creatomate.com over HTTP.

How it runs

Trigger: On a schedule (every hour).

  1. Get Past Topics (Google Sheets): uses Google Sheets
  2. Generate Content Plan (Basic LLM Chain): sends a prompt to an LLM, with model: OpenAI Chat Model
  3. Parse LLM Output (Code): runs custom JavaScript code
  4. Slack: send and wait for a reply
  5. Check Approval (If): checks a condition and branches into true / false
  6. Save New Topic (Google Sheets): append or update
  7. Generate Video (HTTP Request): calls api.creatomate.com (POST)
  8. Wait: pauses before continuing
  9. Instagram Upload (Facebook Graph API): uses Facebook Graph API
  10. Wait: pauses before continuing

…plus 2 more steps. See the full node list below.

Services it uses

SlackFacebook Graph APIOpenAI Chat ModelGoogle Sheets

HTTP calls to: api.creatomate.com

Before you upgrade to n8n 3.0

Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.

Nodes used (10)

From the author

Automate your Instagram growth strategy by generating and posting viral Reels using AI and Creatomate. This workflow plans content topics based on trends, generates video assets, and handles the approval and posting process—all without manual video editing.…

Excerpt from Shun Nakayama's description on n8n.io.

View the original on n8n.io → Check your own copy

Get the weekly “what broke” email

New templates, newly broken ones, and n8n release changes. One short email a week.

Form not loading? Subscribe here.