Five9 guided 2026 revenue to a midpoint of $1.254 billion and non-GAAP EPS to $3.18, targeting at least a 24% adjusted EBITDA margin. Management expects continued subscription growth and improved profitability driven by AI and platform expansion. Enterprise AI bookings more than doubled year-over-year, driving enterprise AI annual run-rate past $100 million with roughly 50% growth in Q4. Core CCaaS revenue also accelerated to 8% year-over-year, and 228 customers with over $1 million in ARR saw subscription revenue grow 24%. Five9 reported Q4 revenue of $300 million, up 8% year-over-year, with subscription revenue comprising 82% of total and growing 12% year-over-year. Adjusted EBITDA margin expanded to 26% and free cash flow rose to $67 million, marking a more than twofold increase versus prior year. Amit Mathradas assumed the CEO role on February 2, succeeding Mike Burkland after 18 years. Mathradas has prioritized product innovation, AI solutions, partner engagement and operational execution, spending his initial weeks meeting customers, partners and employees to assess roadmaps.