Codex is changing how finance teams handle monthly business reviews, reporting, and planning. Instead of manually piecing together spreadsheets, dashboards, and notes, you just feed Codex your existing materials—like close workbooks, revenue dashboards, forecast updates, and owner notes—and it generates a review-ready narrative document with source-backed numbers, key variances, risks, and follow-ups. No coding required. It can also clean up and QA your financial models before high-stakes reviews, checking formulas, hardcodes, and assumptions, then producing a cleaned version and a memo highlighting issues. The goal is to cut down the grunt work so teams can focus on analysis, storytelling, and decision-making. Why it matters: This represents a shift from AI as a simple calculator to AI as a collaborative financial analyst that handles the tedious parts of month-end close and planning, letting human judgment take the lead.