📱 Automate image editing & Instagram posting with Nano Banana & GPT-5 captions
⚡ 2,207 views · 📱 Social Media & Email Marketing
💡 Pro Tip — Heads up — if this workflow’s Instagram scraping breaks (it happens whenever Meta updates their frontend), ScraperNode is a community node that handles profiles, posts, reels, and comments without any HTML parsing.
Description
Auto-Edit Google Drive Images with Nano Banana + Social Auto-Post
Drop an image into Google Drive and let this workflow handle the rest: it auto-cleans and enhances the image with Google’s Nano Banana (via Wavespeed API), generates a catchy caption with GPT-5, and publishes directly to your connected social accounts using Postiz.
**👉 Watch step-by-step video tutorials of workflows like these on **https://www.youtube.com/watch?v=4wk6PYgBtBM&list=PL05w1TE8X3bb1H9lXBqUy98zmTrrPP-s1
What it does
- Triggers from Google Drive when a new image is uploaded
- Sends the image to Nano Banana to declutter, brighten, and make it real-estate/photo-listing ready
- Polls for the edited result until it’s complete
- Logs the edited image URL into Google Sheets for tracking
- Downloads and uploads the edited image into Postiz media library
- Generates an engaging caption with GPT-5 Caption Agent
- Publishes instantly to Instagram (can be extended to TikTok, LinkedIn, etc.)
Perfect for
- Real-estate agents posting property shots
- Ecommerce sellers updating product catalogs
- Social media marketers needing fast, polished posts
- Apps & Services
Tools Used
- Google Drive (Trigger)
- Wavespeed API – Google Nano Banana (Image editing)
- Google Sheets (Logging)
- Postiz (Social scheduling/posting)
- OpenAI GPT-5 (Caption agent)
Setup
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Connect your Google Drive and select the upload folder.
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Add your Wavespeed API key for Nano Banana.
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Connect Google Sheets for logging.
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Add Postiz API credentials and set the integration ID for your channel(s).
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Enter your OpenAI API key for GPT-5 captioning.
Customization
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Adjust the edit prompt for different use cases (e.g., product cleanup, lighting tweaks).
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Change Postiz post type to scheduled instead of “now.”
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Add more Postiz posts for multi-platform publishing.
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Insert an approval loop (Slack/Email) before posting.
Logs
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Edited Image Log (Sheets): stores final image URL + timestamp.
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Publishing Log (Sheets): tracks workflow status per asset.
Notes
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Sticky notes in the template explain each major block.
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Replace sample IDs with your own (folder IDs, sheet IDs, Postiz integration).
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Keep all API keys in n8n Credentials, not in node parameters.
🔗 Nodes Used
Google Sheets, HTTP Request, Google Drive Trigger, AI Agent, OpenAI Chat Model
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File