Automate Instagram carousel creation with GPT-5, Nano Banana, and Blotato

🎨 Instagram Carousel & Caption Generator on Autopilot (GPT-5 + Nano Banana + Blotato + Google Sheets)

Description

Watch the full step-by-step tutorial on YouTube: https://youtu.be/id22R7iBTjo 

Disclaimer (self-hosted requirement): This template assumes you have valid API credentials for OpenAI, Wavespeed/Nano Banana, Blotato, and Google. If using n8n Self-Hosted, ensure HTTPS access and credentials are set in your instance.

How It Works

Chat Trigger – Receive a topic/idea (e.g. “5 best podcast tips”).

Image Prompt Generator (GPT-5) – Creates 5 prompts using the “Hook → Problem → Insight → Solution → CTA” framework.

Structured Output Parser – Formats output into a JSON array.