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The AI impact gap: Why law firms are failing at AI implementation

By:
Lisa Burtch
September 8, 2026
Lisa Burtch
,
Tom Snavely
September 8, 2026
Tom Snavely
,
Eric Lein
September 8, 2026
Eric Lein
,
September 10, 2026
September 10, 2026
11 min

This is the first in a three-part series from the Thomson Reuters Transformation Services team exploring how law firms can move beyond AI aspiration and toward measurable impact.

Key takeaways

  • 91% of professionals say their organizations are falling short of AI's potential value delivery.
  • 78% of clients see AI-enabled quality improvements as essential, yet only 6% believe providers deliver.
  • Successful firms treat AI implementation as strategic discipline, not just technology procurement.
The following scenario is a composite drawn from patterns observed across multiple client engagements.

The managing partner and leadership team thought they had done everything right. They invested in cutting-edge AI tools. The partnership vote was unanimous. The firmwide announcement email highlighted leadership’s commitment to innovation. Expectations were clearly set around required training and appropriate use.

Six months later, the usage reports told a different story. Only a fraction of attorneys had logged into the AI tools more than once. Despite the worrying data, no meaningful action was taken until the firm lost an important opportunity with a valued client. The firm’s team told the client it would take weeks and tens of thousands of dollars in research time just to develop an initial strategy. Meanwhile, a competing firm delivered a preliminary case assessment quickly using AI analysis, outlined strategic options, estimated costs for each of those options, and identified key risks before the engagement letter was signed. The opportunity wasn’t lost because the firm lacked AI tools. It was lost because those tools were unused while competitors had already reimagined how they delivered value.

When the firm dug deeper, they found that a quiet rebellion had been underway for months. Lawyers complained that no one had trained them on the new tools beyond a single 90-minute webinar. Partners admitted they didn’t understand how the AI tools worked and felt uneasy discussing anything to do with AI with clients.

This scenario is unfolding in firms around the world and reflects a growing disconnect across the legal profession. While law firm executives debate market positioning and competitive advantage, their own professionals are struggling with a different reality. AI adoption is no longer the obstacle, but 91% of professionals say their organizations are falling short of what the technology could deliver, a shortfall the Thomson Reuters 2026 Future of Professionals Report labels an “AI value gap.”

Even where an AI strategy exists, execution is lagging. Thirty-five percent of professionals say ambitions are not reflected in their day-to-day work, and one in four say they would consider leaving within two years if they don’t see the value they expect. Clients are reaching the same conclusion: 78% now see AI-enabled quality improvements as essential, yet just 6% believe most providers are delivering, and 32% have reconsidered or plan within 12 months to reconsider relationships with firms they view as falling behind. This gap between leadership vision and daily experience represents more than a missed opportunity. It is an existential risk that may determine which firms thrive and which become cautionary tales.

The illusion of AI impact

Too many law firm leaders are operating under a fundamental misunderstanding of their organization’s true AI impact. They see technology budgets approved, vendor contracts signed, and training sessions scheduled and assume transformation is underway. The reality inside the firm often tells a very different story.

Leadership frequently interprets activity as progress, even when daily behavior does not reflect strategic accomplishment. Attorneys may remain uncertain about how the tools work, practice groups may not adapt their workflows, and partners may hesitate to introduce AI into client conversations. This mismatch creates an illusion of impact that masks deeper capability gaps.

The consequences extend far beyond internal inefficiency. Forty-six percent of lawyers report that they do not know enough about AI to answer basic questions posed by their clients about its potential benefits. This gap highlights a growing disconnect between executive enthusiasm for AI and the level of understanding among practicing lawyers.

Much of this disconnect stems from a focus on procurement rather than capability building. Buying technology is relatively simple. Changing habits, workflows, and client engagement practices is far more challenging, and many firms underestimate the investment required to support that shift.

The message is clear. Access to the latest technology does not guarantee value for law firms. As the legal profession reaches an inflection point, the firms most likely to succeed are not those with the largest technology budgets, but those willing to assess whether their attorneys are genuinely prepared to use these tools effectively.

The innovation leaders: What they know that others don’t

The formula for successful firms is not just buying better technology. They are approaching AI implementation as a strategic discipline rather than a technology project, and that difference consistently separates leaders from the rest of the market.

These leading firms understand a critical truth: AI success depends not only on the sophistication of the tools they buy but also on how accurately leadership understands the current state of their organization. Leadership invests time in developing a clear, shared understanding of the firm’s current state before setting expectations or defining success. Decisions are made with explicit strategic intent, grounded in how AI will support client service, practice priorities, and competitive positioning.

Just as importantly, innovation leaders treat implementation as an ongoing process rather than a milestone. They regularly evaluate whether expected benefits are being realized, identify gaps between intention and execution, and adjust accordingly. This ability to measure, reflect, and course correct allows them to translate ambition into sustained performance rather than isolated success.

Understanding how these firms operate provides a practical reference point for firms seeking to move from aspiration to measurable impact.

Moving beyond the illusion

The window for incremental AI adoption is closing rapidly. The firms that will dominate the next era of legal practice are those whose leaders insist on a clear, evidence-based view of impact rather than assuming technology procurement equals transformation.

In the second part of our series, we’ll explore the five critical dimensions successful firms use to assess their AI strategy and identify exactly where capability, confidence, and alignment are still missing.

Because in a market where innovation increasingly shapes client satisfaction, revenue growth, and competitive positioning, honest assessment has become a business imperative rather than a strategic ambition.

You can find out more about the challenges AI poses to the legal profession here

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Table of
Contents
H2
H3
H4
H5
H6
September 10, 2026
The AI impact gap: Why law firms are failing at AI implementation
This is the first in a three-part series from the Thomson Reuters Transformation Services team exploring how law firms can move beyond AI aspiration and toward measurable impact.
11 min
September 10, 2026
Legal AI & Technology
The AI impact gap: Why law firms are failing at AI implementation
Lisa Burtch
Project Specialist
Thomson Reuters Institute
Tom Snavely
Principal in Transformation Services
Thomson Reuters Institute
Eric Lein
Business Process Analyst
Thomson Reuters Institute
Law Firm Marketing
Law Firm Profitability
Recruiting & hiring
Lawyer Staffing & Headcount
Agentic AI
Generative AI
AI literacy
Professional Development
Legal professionals
AI & Future of Professions
How AI is hollowing out the legal profession's judgment pipeline — and how to fix it
Premortem: Your 2028 agentic AI pilot program failed
The 2030 legal department: 5 ways AI will transform how in-house teams work