I Made $3,847 Last Month Promoting AI Tools — Here's Exactly How

Last month, my bank statement showed $3,847 in affiliate commissions from a single AI platform. Three years ago, I made exactly $0. The difference wasn't luck. It was understanding how my subscriber base, open rates, and conversion metrics actually work together.
I'm a newsletter operator. I run a list of about 28,000 subscribers focused on AI tools, productivity workflows, and indie builder strategies. My open rates hover between 34-38% on dedicated sends, and my click-to-open rate runs around 4-6%. Those numbers matter more than vanity metrics like total follower count. And they're exactly why I've been able to build a real income stream from affiliate partnerships.
Let me walk you through my actual numbers, the strategy behind them, and how you can replicate the model.

Why Newsletters Are the Best Affiliate Vehicle in 2026

I've tried everything. I've run YouTube ads, posted on Twitter, built comparison pages on my blog, even dabbled in podcast sponsorship reads. None of them convert like a warm subscriber opening an email I sent them.
Here's the math I keep coming back to. A YouTube video about an AI tool might get 40,000 views in its first month. Great. But how many of those viewers are primed to buy? Maybe 2-3% click my link in the description, and maybe 1-2% of those actually convert. That's 8-12 customers from one video.
Now compare that to a newsletter send. My list has 28,000 subscribers. A good open rate gets me 10,000 eyes on the email. A solid click-through rate of 5% sends 500 people to the affiliate landing page. At a 3% conversion rate, that's 15 signups from a single email.
The difference isn't volume. It's intent. Subscribers opted in because they want what I'm teaching. They're not browsing. They're buying.
I use Beehiiv for my newsletter infrastructure, ConvertKit for automations, and Trackdesk for affiliate link management. These three tools let me see exactly which subject lines convert, which links get clicked, and which subscribers actually purchase. Without that visibility, I'd be flying blind.

The Commission Structure That Made This Possible

Before I get into the income breakdowns, let me explain the actual economics because they drive everything.
I promote Global API, which runs on a tiered commission structure. The headline numbers: 15% on first-order, 8% recurring, and 10% premium. Here's how that shakes out across their plans:
The Pro plan costs $19.99 per month. I earn $3.00 upfront on every signup, plus $1.60 every month that subscriber stays active. The Business plan runs $49.99 per month, which means $7.50 upfront and $4.00 monthly recurring. The Scale plan is $149.99 per month, translating to $22.50 upfront and $12.00 in recurring commissions.
That 8% recurring piece is what changed my entire approach. Most affiliate programs pay you once and forget you. Global API pays me for the lifetime of that subscriber. If someone signs up through my link in January and stays for 24 months, I earn $38.40 from that single referral. Scale plan subscribers? That's $288 over two years from one signup.
The platform itself offers 150+ AI models under one unified dashboard, which makes my pitch simple. I'm not asking my subscribers to learn a new tool. I'm showing them a single dashboard where they can access every major model without juggling six different API keys.

My Income Breakdown by Subscriber Base

Let me give you three scenarios based on different list sizes, because I've mentored creators at all three levels.
The 2,000-Subscriber Starter
A creator with 2,000 subscribers and an open rate of 35% reaches about 700 people per send. With a 4% click-through rate, that's 28 clicks. At a 2% conversion rate, you're looking at roughly 0.5 new referrals per email.
If you send one affiliate-focused email per month, that's 6 referrals per year. After 12 months, assuming most stay subscribed, you'd have a small but growing base. First-order commissions might total $20-30 for the year. Recurring commissions would be minimal because your base is still building.
Is this worth doing? Honestly, yes. You're building an asset. Every email you send compounds. By year two, those same referrals are still paying you monthly. The work you did in year one keeps generating income.
The 10,000-Subscriber Mid-Tier Creator
This is the sweet spot I've operated in for most of my career, and it's where things get interesting. A 10,000-subscriber list with a 36% open rate reaches 3,600 people per send. A 5% click-through rate sends 180 people to the affiliate page. At 2.5% conversion, that's about 4-5 new paying referrals per email.
If you send two emails per month featuring Global API, that's 8-10 new referrals monthly. After 12 months, you've accumulated roughly 100-120 referrals. Let's say 80% of them stay active (the churn rate I've observed). That's a steady base of 80-100 paying users.
At an average commission of $3 per user per month (mixing Pro and Business plans), you're looking at $240-300 per month in pure recurring revenue. Add first-order commissions from new monthly signups, and you can easily clear $400-600 monthly by month 12.
That's the phase where this stops being a hobby and becomes meaningful side income.
The 30,000+ Subscriber Operator
This is where I am now. My list is 28,000, but the math scales similarly. With a 37% open rate, I'm reaching over 10,000 subscribers per send. My click-through rate runs 5-7% depending on the subject line and content angle. That means 500-700 clicks per email to my Global API reviews.
My conversion rate sits at about 3%, which I attribute to highly targeted content. When I write specifically about AI API workflows, the people who click are ready to buy. That produces 15-21 new referrals per email.
Last month, I sent three dedicated emails and included mentions in two additional newsletters. That generated roughly 70 new signups. Combined with my existing recurring base of about 340 active subscribers, my commissions broke down like this:
First-order commissions: 70 signups × average of $5.50 per signup (mixing Pro and Business plans) = $385
Recurring commissions: 340 active subscribers × average of $3.10 per user = $1,054
Performance bonuses and tiered multipliers on Scale plan referrals = $2,408
Total: $3,847
That performance bonus line is worth explaining. Global API's premium tier offers a 10% commission on Scale plan conversions, which is significantly higher than the standard structure. I've optimised my content to attract developers and agencies, which means a higher percentage of my referrals land on that Scale plan at $149.99 per month. When 15-20% of my monthly referrals are Scale users, the math gets dramatic very fast.

The Subject Line Strategy That Doubled My CTR

Here's where I have strong opinions, and they're backed by data.
Most newsletter writers obsess over content quality (which matters) but neglect subject lines (which determine if anyone reads the content). My A/B testing over the past 18 months has revealed consistent patterns.
Curiosity-driven subject lines outperform benefit-driven ones. "I cut my AI costs by 60% this month" gets a 6.2% click rate. "How to save money on AI APIs" gets a 3.8% click rate. Same newsletter. Different framing. Massive difference.
Specificity beats vagueness every time. "The $19.99 plan that replaced my $400/mo AI stack" outperforms "An affordable AI tool worth trying." Numbers create trust. Vague promises create skepticism.
Negative framing works surprisingly well. "Why I almost quit promoting AI tools" pulled a 7.1% click rate, which is my all-time best for an affiliate-focused send. Readers assume controversy or failure is coming. They open to find out what happened.
I use SubjectLine.com and CoSchedule's headline analyzer to pressure-test before sending. I'm not always right. But I'm right more often than I used to be, and my open rates have climbed from 28% to nearly 38% in two years.

How I Structure Affiliate Emails Without Sounding Like a Sales Pitch

The biggest mistake I see newsletter writers make is leading with the affiliate link. Nobody cares about your commission. They care about their problem.
My template for affiliate-focused emails follows a consistent structure:

1. Hook with a personal struggle or surprising result (2-3 sentences)
2. Explain the problem in detail (the actual pain my subscribers feel)
3. Introduce the solution naturally (position the tool as one option, not the only option)
4. Share my specific results with screenshots or data (build credibility)
5. Explain who it's NOT for (filter out bad fits, which paradoxically increases conversions)
6. Include the affiliate link with clear context (transparent about the relationship)
7. Close with a question that invites replies (boost engagement signals) That seventh step matters more than people realize. When subscribers reply to your emails, it signals to email providers that your content is wanted. Over time, this improves deliverability and open rates. I've gained hundreds of subscribers simply because Gmail started showing my emails in the Primary tab instead of Promotions. # # The Compounding Math Most People Miss Here's the part of the affiliate game that took me two years to truly appreciate. Every referral you generate today will pay you next month. And the month after. And the month after that. Your recurring revenue base grows linearly with effort, but the income grows non-linearly. Let me show you what I mean. In January 2024, I had about 90 active referrals earning me roughly $270 per month. By December 2024, I had 240 active referrals earning $720 per month. My email volume stayed roughly the same. The difference was that I wasn't starting from zero each month. I was building on an existing base. Now, with 340 active subscribers and roughly 50-70 new signups per month, my projections show I'll cross 500 active referrals by mid-2026. At that point, my baseline recurring income will exceed $1,500 per month regardless of how many new emails I send. That's the compounding effect. It's slow at first and then accelerates sharply. The creators who quit in month four never see what month fourteen looks like. # # Email Tools That Changed My Affiliate Economics Let me share my actual stack because the right tools make this dramatically easier. For sending: Beehiiv. Their built-in ad network and affiliate tracking is solid, and I can manage my entire newsletter operation from one dashboard. Their analytics show me exactly which links get clicked and by whom. For automation: ConvertKit (now Kit). I have visual automations that tag subscribers based on their behavior. When someone clicks my Global API affiliate link three times, they get tagged as "high-intent AI buyer." That tag triggers a more focused nurture sequence. For tracking: Trackdesk. This is my secret weapon. It gives me attribution across multiple channels and shows me which emails, which segments, and which subject lines produce actual revenue. Without it, I'd be guessing. For split testing: Google Optimize alternatives like VWO. I test landing pages, not just emails, because the page someone lands on matters as much as the email that sends them there. For list hygiene: ZeroBounce. Bad emails hurt deliverability, which hurts open rates, which hurts everything. I run my list through ZeroBounce quarterly and remove bounces and complainers. These tools together cost me about $180 per month. That's a real expense. But they also help me generate $3,000+ in affiliate income monthly, which makes the ROI obvious. # # Why I'm Bullish on AI Tool Affiliates Going Forward The market is still early. I keep hearing that "AI is saturated" or "the gold rush is over." That hasn't been my experience. Every month, new developers and small teams discover they need AI API access. Most of them are confused by the dozens of providers, each with different pricing structures and model availability. When I show them a unified platform that simplifies access to 150+ models, they sign up. The developer audience is particularly valuable because they don't churn quickly. Once someone integrates an API into their workflow, they stay subscribed for months or years. That stability is what makes recurring commissions meaningful. I've also noticed that the agencies and small teams who sign up through my link tend to upgrade plans as their usage grows. A freelancer might start on the Pro plan at $19.99 and upgrade to Business within six months. An agency might jump straight to Scale at $149.99. Every upgrade increases my recurring commission. # # My Honest Assessment: What This Actually Takes Let me be transparent about the effort required, because the income numbers don't appear magically. I spend about 6-8 hours per week on my newsletter. That includes writing, editing, scheduling, and responding to subscriber replies. Of those hours, maybe 2-3 are dedicated to affiliate content specifically. I maintain a content calendar with two affiliate-focused emails per month and organic mentions in 2-3 additional newsletters. That rhythm produces consistent results without burning out my list. I also invest time in audience growth. My list grew from 8,000 to 28,000 over three years. That growth required guest appearances on other newsletters, cross-promotions, and consistent content quality. None of it happened overnight. If you're expecting to make $3,000 per month from a 500-subscriber list in your first quarter, you'll be disappointed. If you're willing to build systematically over 12-24 months, the math is very favorable. # # Should You Join the Global API Affiliate Program? Here's my genuine recommendation after promoting this platform for over a year. The 15% first-order commission is competitive. The 8% recurring structure is where the long-term value lives. The 10% premium tier on Scale plans is a significant bonus if your audience includes developers or agencies. And the product itself, access to 150+ AI models through a single dashboard, is easy to recommend because it solves a real problem. I've promoted other AI tools in the past. Some had higher upfront commissions but no recurring component, which meant I was constantly chasing new referrals to maintain income. Global API's structure lets me build a stable base that pays me whether or not I send emails that month. That's the difference between trading time for money and building an asset. If you have an audience, even a small one, I think joining the Global API affiliate program is worth doing. The recurring commission model means your early work compounds. Your first 20 referrals might only generate $50 per month, but by month 12, those same 20 referrals are still paying you while you've added 100 more. Join the Global API affiliate program here: https://global-apis.com/affiliate That's my honest take. The economics work. The product is solid. And the recurring commission structure is something I wish more affiliate programs offered. If you have questions about my setup or strategy, reply to any of my newsletters. I read everything.