“AI enabled document review” has fast become the most overused and least defined phrase in the industry. With promises of faster timelines, substantial cost savings, and maintained accuracy, it’s a hot topic for a reason.
Alternative Legal Service Providers (ALSPs), eDiscovery companies, and many law firms claim to offer “AI Review.” On the surface it sounds like a shared capability. The reality is that the phrase has increasingly become a catch-all marketing label used to signal innovation, attract attention, and capture market share, despite often describing fundamentally different workflows, technologies, and levels of human involvement.
Legal teams should absolutely be embracing AI. As data volumes continue to increase alongside mounting pressure on legal budgets, AI plays an essential role in modern document review and eDiscovery workflows. However, when the same phrase is used to describe everything from light-touch document prioritization to deeply integrated AI led review models, meaningful comparisons between providers become increasingly difficult. When every proposal relies on the same language and buzzwords, the operational nuances that actually determine cost, risk, and defensibility are often lost.
The result is a growing gap between what legal teams believe they are purchasing and how document review is ultimately being delivered.
AI is Only as Effective as the Human Judgement Behind It
One of the most significant differences between these models is the checks and balances integrated into the workflow alongside the quality and role of the “human-in-the-loop.” AI must be trained, its decisions must be calibrated, and its output must be validated if the final work product is to be accurate and defensible.
At one end of the spectrum, AI is used to support large scale human review workflows by prioritizing documents, surfacing potentially relevant material, or accelerating reviewer decisions. At the other end, some providers are moving toward highly autonomous workflows with minimal human intervention beyond exception handling or final quality control. Neither approach is wrong, both have value depending on the circumstances of the matter in hand. The issue is they carry very different implications for cost, speed, defensibility and risk.
The appropriate model depends heavily on the nature of the matter and the risk appetite of the legal team. A lower risk internal investigation may be well suited to a highly automated workflow designed for cost efficiency and speed. A high-stakes regulatory investigation or litigation may require significantly greater human effort and judgement. This is where the quality and placement of the “human-in-the-loop” becomes critical. The key distinction is how human judgment is incorporated into the workflow, who is making those decisions, and how the outputs are validated.
The sophistication of the technology matters but understanding how the workflow is designed around risk and defensibility matters more. Technology is only ever as good as the process, workflow, and human judgement behind it.
The Workflow Matters More Than the Label
There is no single way AI is integrated into document review workflows. Providers may use similar language while deploying fundamentally different workflows behind the scenes. These differences extend beyond the technology itself. Operational differences change how work gets done, how human judgment is applied and how results are defended.
In some workflows, AI is used to accelerate early stage review, helping teams identify relevant documents or prioritize what should be reviewed first or reducing the volume requiring human assessment. In others, it’s embedded more deeply into the process, influencing substantive review decisions, escalation paths, validation protocols and how outputs are ultimately validated.
As a result, two providers describing their offering as “AI Review” may in practice be delivering vastly different levels of oversight, accountability and auditability. This may in turn impact accuracy, defensibility and how legal teams evaluate the work product.
That distinction becomes particularly important when facing a challenge from opposing counsel, regulators or the court. A provider relying on automation without human oversight may struggle to explain the logic behind a production. In contrast, models that integrate human judgment at key intervals provide a much stronger narrative for the process, turning a technical output into a defensible legal position.
The question is no longer simply whether AI was used. It is how the workflow was designed, executed, governed and documented.
The Risk of Assuming Equivalence
Highly automated review models may appear more cost effective on paper because they reduce the number of human review hours involved in the process. In the right circumstances, that efficiency can deliver significant value. However, lower upfront review costs do not automatically translate into lower overall risk or lower total cost.
Treating different models as equivalent creates significant risk. Two providers may both use the label “AI enabled review” while offering completely different levels of automation, validation and documentation. Teams often fall back on surface level comparisons or guess what the service actually does, leading to “expectation gaps” where a legal team assumes a level of human oversight that isn’t actually part of the provider’s workflow.
If an overly aggressive workflow results in over production, inconsistent privilege determinations, missed context or the need for substantial downstream re-review, the initial efficiency gains can quickly erode. In some matters, the operational cost of correcting errors or defending review decisions may outweigh the savings generated by increased automation. This is why legal teams can no longer evaluate document review models based solely on speed, reviewer counts or headline cost reductions.
Selecting the appropriate workflow requires a clear understanding of how AI is being applied and how human judgement is being integrated:
- How is AI used at each stage of the review?
- Where does human oversight sit within the process?
- How are decisions validated and documented?
- What audit mechanisms are in place?
- How does the process stand up under scrutiny?
These are not new considerations in document review but they are more important now that AI is at the centre of the work. Transparency, governance and defensibility are more critical than ever.
Beyond the Labels
Legal teams need to drill down into what “AI Review” actually means by asking more detailed questions about how AI is being incorporated into the proposed document review workflow.
Instead of settling for generalized claims, organizations should understand how AI is applied, where human judgement is integrated, how review decisions are validated and documented, and how the workflow is designed to balance efficiency, defensibility and risk.
There is no universally “correct” workflow but understanding these distinctions is the only way to select the right approach for each individual matter. The goal should not be to maximize or minimise the use of AI for its own sake. The goal should be to apply the right level of automation to the right matter in a way that aligns with legal, commercial and risk priorities.
As AI continues to reshape document review and eDiscovery, the most important differentiator will not simply be whether a provider uses AI. It will be how transparently, strategically and defensibly that AI is integrated into the workflow itself.
At present, there is no universally accepted industry definition of what constitutes ‘AI-enabled review,’ which makes direct provider comparisons increasingly difficult. The legal teams that will navigate this shift most successfully will be those able to look beyond the marketing labels and evaluate the underlying workflow, governance and risk model behind the technology, making the ability to look past the “AI” label one of the most valuable skills a legal professional can have.
