Generate AI-Powered LinkedIn Posts with Ollama, Image Creation, and Gmail Delivery

Description

This automation flow is designed to generate professional, research-backed LinkedIn posts based on a user-submitted topic and audience, enhance it with a visually aligned image prompt, and then automatically send the post and image via Gmail and/or publish it to LinkedIn.
⚙️ How It Works (Step-by-Step):
📝 Form Submission (Input Trigger)

A user fills out a form with:

Email

Topic of the Post

Target Audience

This form submission acts as the entry point of the workflow (Form Trigger node).

🤖 LinkedIn Post Generation Agent

An AI agent is triggered that:

Uses Tavily API to fetch real-time web search content related to the topic.

Processes the topic and audience data using an Ollama Chat Model.

Generates a well-structured LinkedIn post that includes:

Hook

Educational insight

Professional tone

Source citations

Hashtags and call to action

🎨 Image Prompt Agent

The generated post is passed to a second agent that:

Extracts the core message.

Converts it into a graphic prompt using a different Ollama LLM.

The prompt is written to be used by an image-generation model like DALL·E or Gemma/GPT-based image tools.

🖼️ Image Generation

The image prompt is passed to a local image generation endpoint (localhost:8098) or OpenAI (api.openai.com) to generate a visual asset.

The base64 image is converted into a file.

📩 Email Dispatch

The post text and the generated image are then sent to the user’s email address via the Gmail node.

The email includes:

The full LinkedIn post

The auto-generated image as an attachment

🔗 LinkedIn Publishing (Optional)

If OAuth is enabled, the post can also be published directly to LinkedIn using the LinkedIn node.

🛠️ Tools Used:

n8n: Orchestration platform

OpenRouter & Ollama: Local/hosted LLMs for post and prompt generation

Tavily API: Real-time web search

OpenAI or Local Endpoint: Image generation from text

SMTP (Gmail): For sending emails

LinkedIn API: For automated posting

📦 Key Features:

End-to-end automation from form to email/post

Uses real-time research for accuracy

Creative visual generation with professional branding intent

Works locally or with cloud APIs

Modular: Can switch tools or endpoints (OpenAI ↔ Localhost, Ollama ↔ OpenRouter)

🚀 Ideal Use Cases:

Marketing teams needing fast content turnaround

Personal branding assistants

Founders, freelancers, and executives sharing thought leadership

University or organization-wide communication systems