Startups · Jun 15
The Gym Nobody Goes To: How AI Flat-Rate Pricing Is Built on a Bet You Will Not Show Up
SaaS pricing assumed near-zero marginal cost. AI does not. Understanding that gap is the most important lesson in tech economics right now.
- AI flat-rate pricing is built on a low-utilization assumption: the product margin depends on most subscribers barely using it.
- Variable inference costs mean heavy or agentic AI use can flip a subscriber from profitable to loss-making, a structural risk traditional SaaS never faced.
- Builders should model AI usage against ARPU now and consider usage-based or tiered pricing before engagement patterns outpace flat-fee assumptions.