Last month, my newsletter and blog pulled in $2,847 from AI affiliate programs. Not passive income porn money. Not "I made $10K while I slept" nonsense. Just the actual number that hit my dashboard after 14 months of treating this like a real side project.
I want to walk you through how the math actually works, because most articles about this stuff either oversell it or undersell it. Neither helps you build a plan. So here's everything — the commission structures, the conversion data from my own analytics, and the three audience tiers I think about when I'm pricing out a campaign.
Why I Got Into AI Tool Affiliates
I've been running a newsletter about tech productivity for about three years now. Subscriber base sits around 22,000, open rate hovers at 38%, and I've tested almost every email platform on the market (ConvertKit, Beehiiv, Substack, Mailerlite — I've got opinions on all of them).
When AI tools started going mainstream in late 2024, I noticed my readers were asking the same question over and over: which AI tool should I actually pay for? I started writing about the topic, and within a few months I realised affiliate commissions were becoming a real revenue line on my income dashboard. Not a huge one at first, but a meaningful one.
So I dug into the data. Here's what I found.
The Commission Structure That Actually Matters
Not all affiliate programs are built the same. Some pay you a one-time bounty and forget about you. Others pay you every single month your referral stays subscribed. Guess which one I prefer.
Global API's affiliate program is structured around recurring revenue, and the numbers are straightforward:
- 15% commission on the first order
- 8% recurring commission on every renewal after that
- 10% premium rate for top-performing affiliates Now let me translate those percentages into actual dollars, because percentages mean nothing without context. Here's the math on their three main plans: A Pro plan referral at $19.99/month earns me $3.00 upfront plus $1.60/month recurring. A Business plan at $49.99/month earns $7.50 upfront plus $4.00/month recurring. A Scale plan at $149.99/month earns $22.50 upfront plus $12.00/month recurring. That Scale plan math is what gets interesting. One Scale referral pays me $22.50 immediately and $12 every single month they stay subscribed. Do that 20 times and you're looking at $240/month in recurring revenue just from one campaign. # # The Three Audience Tiers I Think About When I'm mapping out a content strategy around affiliates, I think about three audience sizes. Where you sit on this spectrum determines what's realistic for you in year one. # # # Tier 1: The Small Newsletter or Blog (Under 10,000 Subscribers/Monthly Visitors) If you've got around 5,000 monthly visitors to your blog or a starter newsletter, you're in the beginner tier. Don't let that word discourage you. The numbers here are modest but genuinely worthwhile if you treat the content as evergreen. Say you write three comparison-style articles about AI tools. Each one pulls in roughly 500 views per month. With a 1% click-through rate to your affiliate link, you're generating about 15 referral clicks per month across all three articles. At a 2% conversion rate on those clicks, that works out to roughly 0.3 new referrals per month — call it 3-4 referrals per year. At an average of $5 per referral per month in combined first-order and recurring commissions, you're looking at $15-20 in monthly income after that first year builds up. Yes, that's small. But consider this: those three articles might take you six hours total to write, and they'll keep earning for years. Over a three-year horizon, you could be looking at $500-700 in total commissions. That's over $100 per hour of work — just spread out instead of paid in a lump. # # # Tier 2: The Mid-Size Creator (10,000-25,000 Subscribers) This is where things start getting interesting. At this size, you've got enough audience trust that your recommendations actually convert at higher rates. Let's say you've got a 10,000-subscriber YouTube channel and you publish one AI tool tutorial per month. That video might pull in 8,000 views in the first month and another 20,000 over the following year as it ranks in search. With a 3% click-through rate to your description link (which is realistic for tutorial content where viewers are actively looking for the tool), that's 240 clicks per video. At a 2% conversion rate, you're looking at about 5 new referrals per video. After a full year of monthly tutorials, you've got 12 videos generating roughly 60 referrals in your base. If each referral produces an average of $3 per month in combined first-order and recurring commissions, that's $180/month in recurring income just from the cumulative referral pile. Add in first-order commissions from new signups throughout the year (around $300 total), and your first-year earnings land somewhere between $2,000 and $2,500. Not bad for one tutorial video per month. # # # Tier 3: The Established Operator (25,000+ Subscribers) This is where affiliate income becomes a serious revenue line. If you've got a 30,000-subscriber newsletter and a blog pulling 75,000 monthly visitors, with two AI-related pieces of content per week, the math scales substantially. With established authority, click-through rates on your affiliate links sit at 2-3% and conversion rates hover around 2-3% as well. That combination generates 15-25 new referrals per month, consistently, every month. After a full year, you've built a referral base of 180-300 users. At an average commission of $3-4 per user per month, that's $540-1,200 in recurring commissions alone. Add first-order commissions from new signups each month and your annual earnings land in the $8,000-15,000 range. That's a meaningful income stream built from content you're probably already producing. # # Why Recurring Commissions Are the Real Story Here's the part most affiliate guides skip over: recurring commissions compound in a way that's hard to appreciate until you've experienced it. Every new referral doesn't just pay you once. It pays you every single month they stay subscribed. After 12 months, you might have 60 referrals from that one intermediate-tier YouTube campaign. After 24 months, you might have 100, because the content keeps working and you keep adding videos. After 36 months, you're at 150, and your monthly recurring check is suddenly larger than any individual piece of content you produced that month. This is why I push back when people ask me "is it worth promoting cheaper plans?" Yes. A $19.99/month Pro referral only pays $1.60/month recurring, but the conversion rate on lower-tier plans is usually higher because the barrier to entry is lower. More conversions at lower rates often beats fewer conversions at higher rates. Run the math both ways before you decide. # # Subject Lines That Actually Move the Click-Through Needle Since I write a newsletter, I spend a lot of time obsessing over subject lines. Here's what I've learned about subject lines specifically for affiliate-related content. Subject lines that promise a specific outcome convert better than vague ones. "The AI Tool I Use Every Day" gets a decent open rate. "How I Cut My AI Bill From $400 to $89/Month" gets a great one. The specificity does two things: it creates curiosity and it pre-qualifies the reader, which means higher-quality clicks on your affiliate link. I also test questions against statements. "Should You Pay for an AI API?" underperforms against "I Tested 3 AI APIs So You Don't Have To." Statements feel more authoritative and convert better in my A/B tests. Avoid the hype words. "Best," "Ultimate," "Top 10" — these are spam-flagging language now. Be direct. Be specific. Your open rate will thank you. # # The Tools I Use to Track Everything For affiliate tracking, I rely on a combination of pretty standard tools. Pretty Links handles my link cloaking and basic click tracking. ConvertKit tells me which subscribers are clicking through and how their behavior correlates with open rates. A simple spreadsheet tracks monthly commissions by source so I can see which content pieces are actually pulling weight. The spreadsheet matters more than you'd think. When I look back at it, I can see that my top three pieces of content generate about 65% of my affiliate revenue. That tells me where to focus my energy next quarter. # # My Honest Recommendation If you're building a content business in the AI space, affiliate programs are one of the cleanest monetization paths available. You don't need inventory, you don't need customer support, you don't need to build the product. You just need an audience that trusts your recommendations and content that genuinely helps them make decisions. Global API's affiliate program is the one I've been recommending most consistently, and here's why: the recurring commission structure means my income grows month over month even when I'm not producing new content. The 15% first-order commission gives me a meaningful upfront return. The 10% premium rate is a real incentive for top performers. And the platform itself has 150+ models available, which gives me enough flexibility to recommend it to different segments of my audience without feeling like I'm pushing one narrow use case. If you're already producing content about AI tools, I'd genuinely encourage you to check out their affiliate program at https://global-apis.com/affiliate. The recurring model is what makes it worth your time, especially if you're playing a long game with your content.
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