Founders Report That AI Features Break the Zero-Marginal-Cost Assumption SaaS Was Priced On
Reddit r/SaaS·medium signal
A widely discussed r/SaaS post argues that founders adding AI features expect software's near-zero marginal cost math to hold and it does not, because every AI action carries real variable cost. The consequence is that flat-rate subscription pricing silently inverts margin on power users. This is the practitioner-level version of the same pressure driving platforms toward per-outcome pricing, and it is showing up in solo-founder P&Ls, not just enterprise contracts.