Auto-Generate & Post AI Images to Facebook using Gemini & Pollinations AI
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Fahmi Oktafian
Description
This workflow is designed for content creators or AI artists who want to automate posting unique AI-generated images to their Facebook Page multiple times a day. It uses Google Gemini via LangChain to generate imaginative image prompts, and Pollinations AI to generate the images. Posts are published with hashtags and a clean caption.
Who Is It For
AI artists
Facebook page managers
Digital marketers looking for automated creative content
What It Does
Triggers 3x daily at 7:00, 11:00, and 17:00 (local time)
Generates random AI image prompts in a retro-futuristic, cinematic, or surreal style using Google Gemini
Fetches images from Pollinations AI using custom prompts
Posts images automatically to your Facebook Page with hashtags
Requirements
n8n self-hosted or desktop (workflow uses schedule trigger)
Pollinations API (no auth needed)
Facebook Page with Facebook Graph API token:
Required scopes: pages_manage_posts, pages_read_engagement, pages_show_list
Google Gemini API Key (used via LangChain node)
How to Customize
Change the prompt style in the Basic LLM Chain node (promptType: define) to suit your theme.
Adjust Set The Generator Image node if you want:
Different image sizes (width / height)
Different seed randomness
Other Pollinations models (&model=kontext)
Add Telegram/Twitter nodes if you want cross-posting
Use Set node to allow easy user-level configuration of models, hashtags, times, etc.