Why AI Cost Collapse Breaks Traditional SaaS Economics

The dramatic drop in AI infrastructure costs is dismantling the unit economics that made SaaS defensible—high margins justified by expensive R&D and hosting. Incumbent software companies built their moats on the assumption that building and scaling was capital-intensive; when those barriers evaporate, so does their pricing power and competitive advantage. The speed of change here is driven by market pricing discipline, not technology adoption rates or cultural transformation timelines.