Generate ad image variations using GPT-4, Dumpling AI & Google Drive

Beschreibung

## 🧾 What this workflow does This workflow takes a reference ad image and brand website, then uses GPT-4, LangChain, and Dumpling AI to generate 10 high-quality image variations for ad testing. These image variations are visually consistent but subtly different in background, mood, lighting, and tone — perfect for performance testing on platforms like Meta Ads or TikTok. --- ## 👤 Who is this for - DTC marketers and brand designers testing ad creatives - Creative teams automating visual experimentation - Content agencies using AI for fast ad mockups - Performance marketers running multivariate testing --- ## ⚙️ How to set up ### ✅ Requirements You’ll need the following tools set up in n8n: - Google Drive (OAuth2 credential) - Google Sheets (OAuth2 credential) - OpenAI API (for GPT-4 or GPT-4o) - Dumpling AI API (via HTTP header authentication) --- ### 🛠️ Steps to configure 1. **Google Sheet Setup** - Create a sheet with one column: `Image URL` - Update the She