Auto-create & post social media reels with Google Veo-3 AI and GPT

🚀 GPT-5 + Veo-3 Instagram Reel Auto-Creator & Auto-Poster

Description: This n8n workflow is a fully automated short-form video content engine that takes your creative idea, turns it into a cinematic video using Google Veo-3 via Wavespeed API, writes an engaging Instagram caption with GPT-5, and instantly posts it to Instagram via Postiz—all without lifting a finger.

It’s designed for content creators, social media managers, and brands who want to produce high-quality, on-brand reels at scale without manual editing or posting.

Watch Step-by-step build: www.youtube.com/@automatewithmarc

💡 Key Features: 💬 Chat-Triggered Automation (You can replace this with On Schedule trigger for automated generation) – Start the workflow with a simple message describing your video idea.

🧠 GPT-5 Video Prompt Agent – Transforms your concept into a visually rich, cinematic prompt optimized for Veo-3.

🎥 Veo-3 AI Video Generation – Creates a polished short-form reel with cinematic motion, effects, and branding.

✍️ GPT-5 Caption Writer – Crafts an impactful, scroll-stopping caption tailored for Instagram engagement.