Inside the AI boom that's transforming how consultants work at McKinsey, BCG, an

Major consulting firms including McKinsey, BCG, Deloitte, KPMG and PwC are rapidly deploying internal generative AI chatbots, agents and applications that are changing how consultants do their work. At McKinsey, the in-house chatbot Lilli is used by over 70% of its 45,000 employees, who turn to it about 17 times a week, according to senior partner Delphine Zurkiya. BCG reports that about 40% of its associates use its slide editor Deckster weekly, and that the firm estimates employees reinvest about 70% of saved time into higher-value activities. Deloitte blocks ChatGPT internally in favor of its own Sidekick tool, while PwC has built over 250 internal agents.