Generate Facebook marketing content from images with Telegram & Gemini

by Abdullah Alshiekh ✓ · 1,317 views · created 2025-07-29 · Content Creation, Multimodal AI

What this workflow does

This AI workflow has 20 nodes and runs on Telegram events. Along the way it connects Telegram and OpenRouter Chat Model.

How it runs

Trigger: On Telegram events.

1. Check if Message has Photo (If): checks a condition and branches into true / false
2. Extract Telegram Metadata (Edit Fields (Set)): sets 5 fields: photo_file_id, photo_caption, chat_id…
3. Generate Marketing Content (AI Agent): runs an AI agent, with model: Language Model (OpenRouter)
4. Get Telegram File Info (HTTP Request): calls an HTTP API
5. Parse AI Output (Edit Fields (Set)): sets 5 fields: headline, content, hashtags…
6. Build Telegram Image URL (Edit Fields (Set)): sets 2 fields: file_path, download_url
7. Decide Input is New or Old (Switch): routes items into 2 branches
8. Download Telegram Image (HTTP Request): calls an HTTP API
9. Send Content for Approval (New) (Telegram): send and wait for a reply
10. Send Content for Approval (Old) (Telegram): send and wait for a reply

…plus 8 more steps. See the full node list below.

Services it uses

TelegramOpenRouter Chat Model

Before you upgrade to n8n 3.0

Nodes used (9)

• Telegram Triggern8n-nodes-base.telegramTrigger
• Edit Fields (Set)n8n-nodes-base.set
• HTTP Requestn8n-nodes-base.httpRequest
• AI Agent@n8n/n8n-nodes-langchain.agent
• OpenRouter Chat Model@n8n/n8n-nodes-langchain.lmChatOpenRouter
• Ifn8n-nodes-base.if
• Telegramn8n-nodes-base.telegram
• Execute Sub-workflown8n-nodes-base.executeWorkflow
• Switchn8n-nodes-base.switch

From the author

📝 Description Instantly turn images into marketing content with one Telegram message. It automatically: Accepts an image and caption via Telegram Sends the image to an AI model with your brand’s content rules Generates copy with headline, body, hashtags, and…

View the original on n8n.io → Check your own copy