Daily LinkedIn Post Automation with Gemini, Stable Diffusion & Gmail

Automatically publish a daily client-focused LinkedIn post—powered by Gemini, Stable Diffusion, and Gmail

This n8n workflow runs every day to generate a professional LinkedIn post using Google Gemini, creates a matching image with Hugging Face’s Stability AI Stable Diffusion 3 Medium, publishes the post to LinkedIn with the generated image, and emails you a notification via Gmail.

What this workflow does

• Schedules daily publishing: Executes at 18:00 using an n8n schedule trigger (adjustable to your timezone).
• Generates the LinkedIn copy with Google Gemini: Produces a short, client-focused post advertising web development or automation services, following strict formatting rules.
• Creates an image prompt from the post: Uses Google Gemini again to produce a 12 to 15 word photographic image description.
• Generates an image via Stable Diffusion: Sends that description to Hugging Face Inference targeting Stability AI Stable Diffusion 3 Medium to generate an image file.
• Publishes to LinkedIn: Creates a LinkedIn post using the generated text and attaches the generated image.
• Notifies you by email: Sends a Gmail message containing the published post text so you know it went live.

Use cases

• Maintain consistent LinkedIn engagement for a web development/automation agency or consultancy.
• Automate thought leadership with on-brand formatting and daily publishing—no manual writing or image work.
• Keep stakeholders informed by receiving a Gmail confirmation after each LinkedIn post.

Technical details

• Schedule Trigger (runs daily at 18:00)
• Google Gemini (PaLM) API for both the post and the 12–15 word image description
• Hugging Face Inference (Stable Diffusion 3 Medium) via HTTP Request
• LinkedIn OAuth2 for publishing to a target profile/person ID
• Gmail OAuth2 for sending a publication notification email

Setup requirements: Add Gemini API credentials for both Gemini steps, a Hugging Face credential for Stable Diffusion 3 Medium inference, connect LinkedIn OAuth2 (and set the posting target), connect Gmail OAuth2 (set the notification recipient), and adjust the schedule time to your preferred hour.