Start-up valuations for the hottest start-ups have come down somewhat since 2021, but public multiples have fallen -66% for top Cloud companies.VCs are now paying a 3.2x premium to public valuations to get into hot deals, making it more expensive.AI spend is increasing, and there are expectations that it can 4x the spend on software and software infrastructure by displacing service and labor.To justify the highest start-up VC premiums ever, AI needs to deliver a lot more growth for SaaS and Cloud start-ups.