McDonald’s just rolled out a massive AI upgrade at drive-thrus nationwide, and it’s already getting orders wrong—here’s how it’s hitting your wallet. The new system, dubbed “McAI,” started replacing human cashiers this week in over 100 locations, promising faster service—but early reports show it’s adding up to 15% more errors on bills, meaning you could be overcharged for extra fries or wrong combos. Worse, McDonald’s is testing a new “dynamic pricing” feature that raises prices during peak hours, so the same McFlurry might cost you $1 more at lunchtime. Consumer advocates warn the push to cut labor costs just transfers the savings to corporate profits, not your pocket, while you wait longer for remakes. Check your receipts—if you spot an error, demand a refund fast, because this upgrade might be bad for your budget.