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🚀 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.
📤 Auto-Posting with Postiz – Uploads and schedules (or instantly posts) your reel to Instagram without manual steps.
⏳ Automated Progress Checking – Wait & retry logic ensures posting only happens when the video is fully generated.
🔧 Tech Stack:
GPT-5 via OpenAI API – AI for prompt engineering & caption creation.
Google Veo-3 (via Wavespeed API) – Next-gen text-to-video model for short-form content.
Postiz API – Multi-platform social media posting automation.
n8n – Orchestration & automation engine.
📌 Ideal Use Cases:
Instagram Reels / TikTok Creators who want to post daily without editing.
Fitness, Fashion, Travel & Lifestyle Brands looking for high-quality, thematic reels.
Social Media Agencies producing client content at scale.
Event Marketers creating same-day recap videos.
🛠 Setup Instructions:
Add your API keys for OpenAI (GPT-5), Wavespeed (Veo-3), and Postiz.
Connect Postiz to your Instagram account.
Trigger the workflow with a chat message describing your desired video.
Watch your idea transform into a reel—fully captioned and posted automatically.
🎯 Why This Workflow Stands Out:
End-to-end automation from idea → video → caption → Instagram post.
AI-driven creative consistency for brand identity.
Scales your content production without hiring editors.
SEO & engagement-ready captions crafted for social virality.