United StatesProfessional services2023 – ongoing

McKinsey & Company

Lilli internal generative AI knowledge assistant

McKinsey reported 72% active adoption of its internal Lilli AI platform

WorkingCompany's own claimOfficial ↗

Problem

Employees needed to find and synthesize knowledge for client work and internal tasks.

Approach

McKinsey built Lilli as an internal generative AI platform and began its firmwide rollout in July 2023. Employees incorporated it into research and other daily work. Colleagues reported spending less time searching for and synthesizing knowledge.

Results

72%share of the firm active on Lilli, as reported by McKinseyCompany's own claim[1]

up to 30%employee-reported time savings in knowledge search and synthesisCompany's own claim[1]

More than 500,000monthly prompts, as reported by McKinseyCompany's own claim[1]

Takeaway

Active use and time savings measured different aspects of the rollout. The time-saving estimate came from employees' reports.

Sources

Rewiring the way McKinsey works with Lilli, our generative AI platform
McKinsey & Company5 Sep 2024Company publication

Source summaries

[1]McKinsey & Company5 Sep 2024

McKinsey described building and rolling out Lilli internally. It reported 72% active adoption, more than 500,000 monthly prompts and employee-reported time savings of up to 30% for knowledge search and synthesis.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026