Track Every Penny You Spend on AI — A Plain-English Guide to Fiorino.AI Developer desk with coffee and code Running a SaaS that uses large-language models (LLMs) feels a bit like owning a sports car: the acceleration is thrilling, but the fuel bill can arrive as an unpleasant surprise. One month you burn 200onOpenAI,thenextmonthitis2,000, and nobody on the team can tell you exactly which customer or feature caused the jump. Fiorino.AI is an open-source cost-tracking and billing helper designed for this exact headache. It sits quietly between your app and the LLM provider, counts every token, attaches it to an …