How to Build a $2.4K-per-Week Auto-Blog With n8n, ChatGPT, and Reddit
Reddit Trend Mining with RSS
Reddit’s niche subreddits surface viral topics hours before mainstream media notices them. By subscribing to RSS feeds from high-signal communities—such as r/technology, r/futurology, r/science, and r/interestingasfuck—you capture fresh, search-worthy ideas the moment they spike in upvotes. An automation trigger in n8n checks these feeds on a tight schedule, extracts the post title and summary, and flags only those crossing a predefined popularity threshold, guaranteeing that every article you publish aligns with real-time user interest and high click-through intent.
Selecting High-Traffic Subreddits
Focus on subreddits that consistently trend on Google Discover and carry broad commercial keywords. Cross-check subreddit demographics with ad network RPM benchmarks to ensure the audience aligns with lucrative ad categories.
Filtering for Evergreen Potential
Not every hot thread converts into sustainable traffic. Apply regex or keyword filters inside n8n to reject memes, low-information reposts, or fleeting news so your content remains valuable weeks after publication.
Building the Automation Workflow in n8n
n8n serves as the orchestration core, chaining every micro-task into a single, hands-free pipeline. The flow typically starts with an RSS Trigger node, moves through JSON Transform nodes for data cleanup, and then branches to OpenAI and DALL·E modules before finishing at WordPress and Notion endpoints.
Essential n8n Nodes
- RSS Trigger – polls subreddits.
- Function – extracts title, permalink, and post text.
- OpenAI – sends a structured prompt to ChatGPT.
- DALL·E – generates a featured image via the prompt returned by ChatGPT.
- Notion – stores text and media for backup and manual review.
- WordPress – publishes the post with tags, slug, and scheduled date.
- HTTP Request – notifies Ezoic for rapid indexing.
Error Handling and Rate Limits
Set retry logic on OpenAI and WordPress nodes to gracefully handle API hiccups. Use n8n’s built-in Wait node between image generation and publishing to respect DALL·E rate limits and avoid incomplete posts.
Generating High-Quality AI Content with ChatGPT
The content prompt is engineered for conversational, reader-first copy. It instructs ChatGPT to mimic a friendly coffee-chat tone, eliminate clichés, keep paragraphs short, and front-load value. ChatGPT returns a full article plus multiple image prompt suggestions, ensuring text and visuals remain thematically aligned.
Prompt Optimization
– Specify audience persona and desired reading grade level.
– Inject stylistic guardrails: contractions, first-person anecdotes, and bullet lists.
– Include a “no filler” directive to prevent generic intros and repetitive phrasing.
Human Review Loop
Despite automation, skim every draft for factual accuracy and originality. Adjust headlines for keyword density, insert internal links, and layer schema markup for FAQ or How-To rich results.
Creating Unique Visuals with DALL·E
Stock photos rarely win SERP clicks. Passing ChatGPT’s image prompt to DALL·E yields bespoke graphics that reinforce topical authority and improve social-share rates.
Image Performance Tips
– Generate at 1024 × 1024, then compress to WebP to keep Core Web Vitals healthy.
– Overlay subtle branding or URL watermarks to deter scraper sites while preserving aesthetic quality.
Auto-Publish to WordPress
n8n pushes the final article, alt-tagged image, and meta data directly to WordPress. The post is auto-tagged, categorized, and scheduled, emulating a fully staffed editorial calendar.
SEO Configurations
– Use an SEO plugin’s REST endpoint to prefill focus keyphrase, meta title, and meta description.
– Auto-generate an Open Graph image from the DALL·E asset to enhance click-through on social previews.
Monetization with Ezoic and AdSense
Ezoic consistently outperforms vanilla AdSense due to AI-driven ad placement and higher RPMs. Linking WordPress to Ezoic via the official plugin activates automatic caching, layout testing, and revenue reporting.
Traffic Acceleration
Reddit-derived topics often surface in Google Discover within hours, driving thousands of high-EPMV mobile sessions. Pair this with aggressive sitemap pings to accelerate indexation.
Common Mistakes and Tips for Improvement
Q&A
Q1: How many posts should the workflow publish daily to hit similar revenue?
Publishing 10–15 trend-aligned articles per day balances volume with quality and keeps the site within safe content velocity limits.
Q2: Can this system be replicated on Substack instead of WordPress?
Yes. Swap the WordPress node for Substack’s API endpoint, but note that display-ad monetization options are limited compared to Ezoic.
Q3: What’s the fastest way to boost RPM after launch?
Enable Ezoic’s Leap optimization, experiment with ad-placement AI, and prioritize tech-focused subreddits whose audiences attract premium advertisers.