n8n Workflow: 9:16 AI Image Generator from Airtable Content

Turn Airtable content into 9:16 AI images—automatically

This n8n workflow generates 9:16 aspect ratio AI images for short-form video thumbnails and scenes. It pulls your brand guidelines and SEO keywords from Airtable, uses GPT-4 to create a 4-scene script and thumbnail prompts, then calls Leonardo.ai API to generate the images and save the results back into Airtable with metadata.

What this workflow does

• Starts manually in n8n when you trigger the workflow.
• Retrieves brand guidelines (style, tone, and related guidance) from Airtable.
• Pulls SEO keywords and blog post content from Airtable to shape the image story and messaging.
• Prepares content using OpenAI: GPT-4 is used to produce a 4-scene script and thumbnail prompts tailored to short-form video.
• Generates AI images with Leonardo.ai:
  • Thumbnail images for the 9:16 format
  • Scene-specific images in 9:16 aspect ratio
• Saves generated assets back to Airtable, including image URLs and file sizes as metadata.

Use cases

• Create vertical (9:16) thumbnails and story frames from your existing blog posts in minutes.
• Maintain consistent brand style by pulling brand elements directly from Airtable.
• Generate image concepts optimized around SEO keywords for faster short-form iteration.

Technical details

• Airtable: brand guidelines, blog/SEO inputs, and asset storage (URLs + file size metadata)
• OpenAI (GPT-4 / GPT-4O-MINI): generates the 4-scene script and thumbnail prompts
• Leonardo.ai: improves prompts and generates the 9:16 images
• n8n nodes shown in this workflow: set, wait, limit, filter, airtable, split out