In an ironic twist to the old stereotype of lawyers grappling with basic technology, a recent study by Harmonic Security, a leading provider of AI governance software, reveals that in-house legal departments are the most prolific users of artificial intelligence within the corporate sphere.

According to data from over 1.9 million classified AI-session minutes analyzed by Harmonic across its enterprise clientele, legal and governance departments lead with a significant 19.5 percent of all AI hours logged. They are closely followed by the Go to Market sectors—encompassing sales, marketing, and business development—which account for 17.7 percent. The design and development sectors trail behind at 13.3 percent.

The findings are even more striking considering the size disparities among these departments. Typically, Go to Market teams are substantially larger than their legal counterparts, suggesting that per capita, legal departments' AI usage is even more pronounced. Often viewed as cost centers rather than integral parts of business strategy, legal departments are leveraging AI to enhance efficiency and reduce reliance on costly external counsel.

Harmonic's report aligns with a Harbor/CLOC law department survey, which highlights a trend of general counsels reducing spend on outside counsel and using AI as a bargaining tool in fee negotiations. This shift is supported by anecdotal evidence from a Legal Geek panel where in-house counsel expressed a desire to manage more work internally, empowered by AI technologies.

However, the embrace of AI is not without its complexities. Another study by 8am last week indicated that small law firms are recording more billable hours per case in the AI era, contrary to expectations that AI would streamline processes and reduce workloads.

In terms of tool preferences, legal departments predominantly utilize ChatGPT, constituting 67 percent of their AI interactions. Other tools like Claude, Copilot, Gemini, and Perplexity have lesser footprints within these operations. Notably, Claude is favored for tasks requiring sustained analytical reasoning, particularly in strategy and finance roles.

Despite their enthusiastic adoption of AI, legal departments also exhibit cautious behavior, with only 4 percent of AI time occurring on free personal accounts—a stark contrast to less regulated use in other departments.

Harmonic CEO Alastair Paterson commended the legal sector for their prudent use of enterprise-grade tools, though he warned against even minimal reliance on personal accounts due to security risks.

This comprehensive utilization of AI by in-house lawyers not only underscores their unexpected tech-savviness but also positions them as front-runners in the corporate adoption of these transformative technologies. As AI continues to evolve, its strategic deployment by legal departments is likely to set precedents in efficiency and operational effectiveness across various industries.