AI Eats SaaS Margins: Incumbents Trapped by Legacy Cost Structures
signulll · x · 2026-08-11
The author argues that traditional SaaS was built on the assumption of zero marginal cost for software, a premise entirely blown up by AI: every AI action now costs money.
- Incumbent Dilemma: To handle soaring costs, legacy SaaS companies must create more expensive tiers or introduce usage-based pricing. This forces customers into new purchasing decisions while revenue doesn’t automatically increase, compressing gross margins and creating adoption uncertainty.
- The Squeeze: Incumbents (especially public companies) are trapped between model labs subsidizing AI usage to undercut them, and AI-native startups burning venture capital to acquire users.
- Legacy Baggage: Traditional SaaS is now stuck carrying a pricing model, cost structure, customer base, and investor expectations built for the old world.
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