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AI vs. manual review: Why more organizations are automating legal billing

11 July 2025

In today’s fast-paced legal landscape, claims organizations are under constant pressure to do more with less. The sheer volume of invoices generated in litigated casualty claims can overwhelm even the most organized teams, forcing tough decisions between thoroughness and efficiency. But what if you didn’t have to choose?

A smarter approach to legal invoice review

Milliman Datalytics-Defense® is helping organizations rethink their approach to legal e-billing. By harnessing artificial intelligence (AI), Datalytics-Defense automates the review, audit, and approval of routine invoices, allowing teams to focus their time and expertise where it matters most.

What the data shows

Based on an analysis of 2 million invoices for litigated casualty insurance claims from Datalytics-Defense, the numbers are clear:

  • 10% of all invoices are under $100
  • 20% of all invoices are under $250
  • 50% of all invoices are under $1,000

Yet the majority of savings potential lies elsewhere:

  • 0.1% of audit savings come from invoices under $100
  • 0.3% from invoices between $100 and $250
  • 3.0% from invoices between $250 and $1,000
  • 96.6% of audit savings come from invoices greater than $1,000

That means half of all invoices contribute just 3.4% of savings, while the other half holds nearly all the value—96.6%.

AI vs. human review: Reducing errors and costs

Manual invoice review is not only time-consuming but also prone to human error. Even the most diligent teams can overlook details or apply standards inconsistently, leading to missed savings or compliance issues. Datalytics AI-driven approach ensures every invoice is evaluated objectively and consistently, minimizing costly mistakes.

Additionally, automating the review of routine invoices significantly reduces the need for manual labor. This translates directly into cost savings—organizations can reallocate or reduce human resources previously dedicated to low-value tasks, decreasing operational expenses and improving overall efficiency.

Key benefits of using Datalytics-Defense

  • Efficiency gains: Routine invoices are processed quickly and accurately.
  • Resource optimization: Teams concentrate on the invoices that drive the greatest impact.
  • Consistency: AI ensures every invoice is evaluated against the same objective criteria.
  • Cost savings: Lower reliance on manual review translates to reduced operational expenses.

Why it matters now

As legal costs continue to grow, automating routine tasks is no longer optional for organizations that want to stay competitive. Solutions like Datalytics-Defense aren’t just about technology—they’re about unlocking the full potential of your team and delivering meaningful results.

About Milliman Datalytics-Defense®

Datalytics-Defense is an advanced legal spend management platform designed specifically for litigated casualty claims. Combining robust data analytics with AI-driven automation, Datalytics-Defense empowers claims organizations to improve efficiency, reduce costs, and achieve greater control over legal spend. Its unique approach enables teams to focus on high-value legal work while automating routine invoice reviews—delivering both savings and consistency.


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