Weekly AI Tech News Digest n8n: RSS + Sitemaps, Gmail

Get a polished weekly AI tech news newsletter—automatically—using RSS + official sitemaps and Gmail

This n8n workflow curates a multi-story Weekly AI Tech News Digest by pulling articles from RSS feeds and official sitemaps, deduplicating previously sent URLs, writing the digest with OpenAI (GPT-4o-mini), and sending a formatted HTML newsletter via Gmail. If validation fails, it can alert via Telegram.

What this workflow does

• Runs weekly (or manually for testing) and loads a configurable catalogue of news sources and digest settings.
• Fetches candidates from active RSS feeds and discovers recent pages from configured official sitemaps, then normalizes them into a single article format.
• Filters freshness and completeness, then checks an n8n Data Table to remove any canonical URLs that were already sent.
• Scores and ranks the remaining candidates, keeping the top 30 for deeper verification.
• Extracts stronger evidence by fetching each finalist page to pull supporting text and images.
• Uses OpenAI to select the edition and generate the story write-ups, assembling one digest payload.
• Validates the AI output and re-checks page metadata to ensure each shortlisted story has a usable image—blocking sending if safety checks fail.
• Sends via Gmail as HTML, then records each sent canonical URL back into the Data Table; otherwise, it alerts via Telegram.

Use cases

• SaaS operators who want a consistent weekly AI and automation update for customers.
• n8n users building a news aggregation + newsletter pipeline without manual curation.
• Automation engineers needing reliable deduplication and output validation before publishing.

Technical details

• OpenAI (GPT-4o-mini chat model) for curation and writing
• Gmail OAuth2 to deliver the final HTML digest
• Data Table deduplication using canonical URLs
• Nodes referenced: if, set, code, gmail, merge, limit

Setup: Add OpenAI credentials for GPT-4o-mini and provide a Gmail OAuth2 credential (and configure the source catalogue/settings).