McKinsey warns that AI agent adoption drives soaring corporate spending due to complex multi-step tasks, with costs varying up to 30 times for identical outputs. A survey reveals one-third of firms spend over 10% of IT budgets on AI, with 60% planning further increases. Software development teams face the highest costs from token-intensive coding. Consequently, companies like Coinbase and Salesforce are restricting usage as expenses strain operations, marking a shift from previous cost-saving chat tools to expensive autonomous agents.