Summarize Telegram-shared webpages with OpenAI GPT-4o

by Dr. Firas ✓ · 35 views · created 2026-07-09 · Document Extraction, AI Summarization

What this workflow does

This AI workflow has 13 nodes and runs on Telegram events (message). Along the way it connects Telegram and OpenAI Chat Model.

How it runs

Trigger: On Telegram events (message).

1. Configuration (Edit Fields (Set)): sets 3 fields: openai_model, max_page_size, include_raw_url_in_prompt
2. Extract URL (Code): runs custom JavaScript code
3. URL Valid? (If): checks a condition and branches into true / false
4. Fetch Webpage (HTTP Request): calls an HTTP API
5. Send Invalid URL Error (Telegram): uses Telegram
6. Extract Page Content (HTML): parses or builds HTML
7. Prepare Summary Input (Edit Fields (Set)): sets 3 fields: page_title, page_text, source_url
8. Summarize Page (AI Agent): runs an AI agent, with model: OpenAI Model; output parser: Summary Output Parser
9. Format Summary (Edit Fields (Set)): sets 1 field: telegram_text
10. Send Summary to Telegram (Telegram): uses Telegram

Services it uses

TelegramOpenAI Chat Model

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Nodes used (10)

• Telegram Triggern8n-nodes-base.telegramTrigger
• Edit Fields (Set)n8n-nodes-base.set
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if
• HTTP Requestn8n-nodes-base.httpRequest
• HTMLn8n-nodes-base.html
• AI Agent@n8n/n8n-nodes-langchain.agent
• OpenAI Chat Model@n8n/n8n-nodes-langchain.lmChatOpenAi
• Structured Output Parser@n8n/n8n-nodes-langchain.outputParserStructured
• Telegramn8n-nodes-base.telegram

From the author

Quick overview This workflow listens for Telegram messages containing a URL, fetches and cleans the webpage content, summarizes it with an OpenAI chat model, and replies in the same Telegram chat with a formatted summary including key points and action items.…

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