Dmitry Perelygin — AI SaaS CFO

Dmitry Perelygin is a fractional CFO working with AI SaaS founders on pre-seed and seed rounds. ACMA/CGMA, MBA Manchester. Based in Piedmont, Italy. His work sits on one observation: AI SaaS companies rarely die at the bottom. They die at the peak, killed by their own growth — because the cost of serving a customer moves with usage, and a classical SaaS model does not see it. Inference cost that scales with the product. A small group of heavy users consuming many times the average. Humans in the loop sitting in COGS, not OpEx. Gross margin that looks like software on the summary page and like services underneath. The models published here are built around that gap. Every formula is visible, every benchmark carries its source, and nothing is presented as a forecast — a financial model is an instrument for interrogating assumptions, not a prediction of the future. Writing on AI SaaS unit economics, plus four free calculators for founders: perelygin.expert Author of "How to Design an AI SaaS That Survives".

A three-year monthly financial model for AI SaaS startups, built…

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