Over 75% of McKinsey employees now use the internal AI tool Lilli, which safely handles confidential information. McKinsey consultants are using the firm's proprietary AI platform to take over tasks that have traditionally been handled by junior employees. Kate Smaje, McKinsey's global leader of technology and AI, told Bloomberg on Monday that McKinsey employees are increasingly tapping into Lilli, the internal AI platform the firm launched in 2023. McKinsey employees who use Lilli turn to it 17 times per week on average, a McKinsey senior partner told BI. At Boston Consulting Group, employees use an AI tool called Deckster to fine-tune their PowerPoint presentations.