AI is quietly redrawing the legal industry
Legal work sits near the top of most AI exposure charts. In The Potentially Large Effects of Artificial Intelligence on Economic Growth, published on 26 March 2023, the Goldman Sachs economists Joseph Briggs and Devesh Kodnani put US legal work at 44 percent exposure to AI-driven automation, second only to administrative occupations at 46 percent. That is an exposure measure: how much of the work is open to automation, not how much has actually been automated. Three years on, that estimate reads less like a provocation and more like a project plan.
Adoption has caught up. Thomson Reuters reports generative AI use at 41 percent of law firms and 47 percent of corporate legal departments. Law firm use rose from 28 percent, up by about half; corporate departments moved from 23 percent, roughly doubling. The report frames this as adoption reaching critical mass rather than early experimentation. In a single budget cycle the tools moved from pilot to plumbing.
What changes is not whether lawyers exist but what surrounds them. Research and first drafts can reduce from days to hours. Knowledge that lived in inboxes becomes retrievable. Models that lean on many juniors billing many hours come under pressure. The differentiator shifts from headcount to judgment, and to the quality of the workflows and guardrails around the tools. The need for a lawyer stays; what changes is where that time is worth spending.
The organisations pulling ahead treat this as an operations question, with pilots, measurement and governance. The ones falling behind treat it as procurement. The technology is the easy part; redesigning the work is the transformation.
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