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Thomson Reuters
Artificial Intelligence

CoCounsel Legal and DeepJudge integration brings firm knowledge into a 360° AI experience

24 Jun 2026

 

 

CoCounsel Legal helps lawyers draft, analyse, and research with powerful AI tools alongside Westlaw and Practical Law to ground their analysis in trusted authority. However, relying on external sources alone creates a critical gap.

Whether assessing a new case, negotiating an agreement, or advising a client, lawyers need access to both trusted legal authority and their firm’s own experience. The most relevant starting point often already exists, but it’s buried in prior matters, negotiated positions, and internal work product. That insight is valuable, but difficult to access and apply in the moment.

CoCounsel Legal now integrates with DeepJudge, the institutional intelligence platform that indexes and activates a firm’s full knowledge base. This integration is now available to joint subscribers and unifies that context in a single workflow.

CoCounsel Legal, we thought, was the premier platform to begin with, and then the addition of Deep Judge just gave it an additional ability that we’d not seen before to access our own material and our own IP.Ben Mathis, Managing Partner, Freeman, Mathis & Gary, LLP

 

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​​​​How the CoCounsel Legal and DeepJudge integration works

Give lawyers the right context at the right moment

New ways of operating, built on your firm’s strongest work

Operationalising firm knowledge is the future

 

How the CoCounsel Legal and DeepJudge integration works

CoCounsel Legal users can now find firm knowledge and judgment, wherever they live, and bring those documents directly into the CoCounsel chat. DeepJudge enables this by creating a unified foundation across a firm’s repositories and business systems, enriching existing metadata and uncovering additional insights from unstructured data.

Using the integration is straightforward, whether you’re in the CoCounsel web app, Westlaw, or Practical Law. From the CoCounsel Chat interface, users can access DeepJudge search, explore their firm’s indexed materials, and attach up to 10 files to their session in a single step. They can then apply any CoCounsel Skill or workflow to begin using that content.

The process takes seconds, moving from document selection to applying them within the same session. From there, CoCounsel Legal draws on firm precedent, Practical Law, and Westlaw to support drafting, analysis, and research without requiring users to move between tools.

Give lawyers the right context at the right moment

The integration removes the context switching that slows execution down, so lawyers can use firm insights alongside CoCounsel Legal’s trusted content and AI in one place.

Users may see improvements across several areas:

  • Faster time to first draft: Begin from proven firm precedents instead of a blank page or generic templates.
  • Higher-confidence outputs: Apply trusted internal knowledge from DeepJudge alongside Practical Law and Westlaw content to produce well-supported results.
  • Enterprise-grade governance: DeepJudge’s permission-aware search retrieves and synthesises information from internal documents and data across systems, so access controls, permissions, and ethical walls carry through to CoCounsel results unchanged.
  • Less switching between tools: Find the right language and documents in DeepJudge and bring them into CoCounsel without downloading or re-uploading.

Together, these capabilities help legal teams move faster, maintain consistency, and produce work grounded in both firm precedent and trusted legal authority.

New ways of operating, built on your firm’s strongest work

The connection between CoCounsel Legal and DeepJudge unifies fragmented processes and opens new opportunities to capitalise on institutional and legal expertise. Here are different examples of how firms can use it.

Draft contracts from existing firm precedent
Use DeepJudge to locate your firm’s best templates and most relevant prior agreements. Pull them into CoCounsel and kick off a drafting project using proven firm knowledge, Practical Law market standards, and legal expertise working together from the start.

Inform new matter strategy with your firm’s case history
At the outset of a new matter, use DeepJudge to find prior cases with similar claims, counterparties, or fact patterns. Bring those documents into CoCounsel and generate a structured summary of strategic decisions, arguments, and outcomes before strategy discussions begin.

Give clients a balanced view of litigation risk
At the case assessment stage, use DeepJudge to pull the firm’s most relevant prior pleadings or position papers on the same claim type and bring them into CoCounsel. Run the Arguments and Counterarguments skill to generate a balanced picture of the strongest arguments on both sides, grounded in Westlaw and your firm’s own established positions. The advising partner gets a fully informed foundation for a litigation risk memo without starting the analysis from scratch.

Operationalising firm knowledge is the future

Firms leading the next phase of AI adoption aren’t just generating answers faster. They’re gaining a competitive edge through how effectively they apply their own precedent, perspective, and past decisions to new matters.

We’ve never been able to use our own IP before in a consistent way, and now we have the ability to do that.Ben Mathis, Managing Partner, Freeman, Mathis & Gary, LLP

Freeman, Mathis & Gary, LLP is already operationalising this approach, moving from limited access to applying that insight in real time. Large and mid-sized firms are best positioned to benefit from this shift.

Thomson Reuters and DeepJudge give joint subscribers a seamless way to connect institutional insight directly into research, drafting, and analysis workflows. As more processes build on this connection, firms can extend how they apply their expertise across the business.

See how CoCounsel Legal and DeepJudge operate together in practice. Request a demo and explore how this integration fits into your firm’s workflow.

CoCounsel Legal and DeepJudge

CoCounsel Legal and DeepJudge

Apply intelligent search across legal workflows

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