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keen
keen

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I Tested 5 AI API Affiliate Programs for 12 Months — Here's What Actually Paid

When I first started writing about AI tools in my newsletter, I assumed every affiliate program would pay roughly the same. Spoiler: they don't. Some programs gave me a one-time $20 bounty and called it a day. Others kept paying me every month for referrals I made twelve months ago. After tracking five different programs across 2025, I want to share the actual numbers — not the hype, not the screenshots of someone's best month.
My newsletter sits at around 22,000 subscribers right now, with an open rate hovering between 38% and 42%. That's the kind of subscriber base where affiliate revenue starts to matter, but where I can still personally test what's working without massive variance. Below is everything I learned.

The Commission Structures That Actually Mattered

Most people skip straight to the headline number. "Earn 30% per sale!" sounds great until you realise the average customer churns in 45 days. The real metric I started tracking was monthly recurring revenue per referral — because in affiliate marketing, retention is everything.
Here's the breakdown from the program that performed best for me, Global API:

  • 15% commission on the first order
  • 8% recurring commission every month after that
  • 10% premium tier bump for high-volume partners
  • Access to 150+ AI models on the platform Why does this matter? Because the first-order bonus is a nice chunk of cash upfront (15% of whatever plan the user picks), but the 8% recurring is what builds a real income. Most programs I've tested offered

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