Generate catalog concept PNGs with OpenAI gpt-image-1 and CSV manifests

by Shisan Hua · 0 views · created 2026-09-16 · Content Creation, Multimodal AI

What this workflow does

This workflow has 9 nodes and runs manually, when you click “Execute workflow”. It uses only n8n's built-in nodes. It also calls api.openai.com over HTTP.

How it runs

Trigger: Manually, when you click “Execute workflow”.

1. Configuration (Edit Fields (Set)): sets or maps fields
2. Validate catalog before any charge (Code): runs custom JavaScript code
3. Create one request per SKU (Code): runs custom JavaScript code
4. Demo without paid API (If): checks a condition and branches into true / false
5. Offline response fixtures (Code): runs custom JavaScript code
6. Generate PNG once per SKU (HTTP Request): calls api.openai.com (POST)
7. Validate responses and materialize PNG (Code): runs custom JavaScript code
8. Attach batch review summary (Code): runs custom JavaScript code

HTTP calls to: api.openai.com

Before you upgrade to n8n 3.0

Nodes used (5)

• Manual Triggern8n-nodes-base.manualTrigger
• Edit Fields (Set)n8n-nodes-base.set
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• HTTP Requestn8n-nodes-base.httpRequest

From the author

Quick Overview This workflow runs manually to turn a small product catalog JSON, approved scene descriptions, and target aspect ratios into a validated matrix of product-image creative briefs, then exports the briefs as a downloadable CSV for review and…

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