Case Studies

When Scale Meets Defensibility: How Array Leveraged AI-Powered Review for Complex Litigation

Written by Array | Sep 15, 2026, 3:54:27 PM

The Challenge:

A top-tier Canadian insurance defense litigation boutique firm needed a scalable, defensible review approach for a complex class action involving 4.9M+ collected documents across 20 custodians and a 750K+ document review population.

CHALLENGE

Complex class action with 4.9M+ collected documents and a 750K+ document review population.

RESULTS

Array combined Relativity aiR, advanced analytics, expert oversight, and defensible validation to achieve 99.5% recall, 1.1$ elusion, and 70.8% precision.

 

 

The Solution:

By combining Relativity aiR, advanced analytics, and senior review lawyer expertise, Array delivered scalable review efficiencies while maintaining quality, defensibility, and transparency. 

 

  • AI-Assisted Review Workflow: Array combined Relativity aiR with senior review lawyer expertise, prompt refinement, and targeted quality control to accelerate and improve review decisions. 

 

  • Large-Scale Review Optimization: Advanced analytics and workflow optimization streamlined and managed a review population exceeding 750,000 documents. 

 

  • Defensible Validation: AI results were validated through statistical sampling, senior lawyer review, and post-aiR quality control to ensure defensible outcomes. 

 

 

 

 

The Results:

  • Applied Relativity aiR and advanced analytics to efficiently manage a 750K+ document review population at scale

 

  • Achieved 99.5% recall through a defensible validation framework and targeted quality control

 

  • Improved AI classification performance through prompt refinement, expert oversight, and statistical sampling

 

  • Maintained a 1.1% elusion rate, demonstrating exceptionally low rates of potentially missed relevant documents

 

  • Delivered the primary review workflow under budget while maintaining quality and transparency throughout the matter

 

 

 

 

Expertise Meets Action

Array, a Relativity Gold Partner, has long been at the forefront of innovation within the Relativity ecosystem. With a team of over 57 RelativityOne-certified professionals holding more than 113 certifications, we bring deep expertise to every engagement. As an early adopter of Relativity aiR, our team has built custom generative AI workflows to reduce friction and deliver better outcomes for clients.