Today, we’re announcing the next generation of CoCounsel Legal, now available in Beta. Built from the ground up, it delivers on the vision we set out from the start: an AI companion that works alongside lawyers through every task and every stage of a matter, grounded in the trusted sources of knowledge they rely on.

Built on the most advanced AI, and engineered for how legal work actually gets done

Built on Anthropic’s Claude Agent SDK, the next generation of CoCounsel Legal is a unified agentic platform that plans, selects tools, retrieves authoritative content, and adapts mid-workflow just as a senior associate would, not a first-year waiting for the next instruction. Critically, the lawyer remains in control—able to see the agent’s reasoning as it unfolds, step in to redirect its approach, challenge its assumptions, and probe whether alternative angles have been considered.

CoCounsel Legal doesn’t reason from the web – it’s built with Westlaw and Practical Law content and tools natively embedded. Different by design, the technology and the sources are built as one system, making defensibility part of the architecture rather than a feature. As a result, when CoCounsel Legal produces a deal term sheet, contract, or litigation strategy memo, every step of its reasoning is grounded in authoritative legal sources, guided by 35 million West Key Number classifications and 3.9 million Precision Research attributes, and fully transparent through verifiable Practical Law resources and Westlaw citations. Developed and evaluated by practicing-attorney editors working alongside top AI data scientists, the breakthrough isn’t simply faster task completion – it’s the ability to produce complex work product across the many decision points of a legal matter, moving beyond task execution to true legal reasoning.

Our leading evaluation framework encodes quality at each step. This means before any capability ships; we measure it. Licensed attorneys, including our Practical Law editors, define what the correct output looks like for each task type. Every new capability must demonstrate measurable improvement against that benchmark before it reaches production. The framework evaluates not just final outputs, but the full chain of reasoning that produced them, because an agent that arrives at the right answer through flawed reasoning cannot be trusted to do so consistently.

And we’ve gone further to protect the integrity of that reasoning, with patent-pending tools for citation integrity and output verification:

• Verification and grounding as system primitives. Authoritative retrieval, explicit source handling, and verifiable citation flows are product infrastructure -not post-processing or marketing language.
• Patent-pending citation integrity. Our citation ledger architecture creates a session-verifiable evidence trail for legal citations, ensuring the agent can only cite what it actually retrieved and enabling trustworthy, clickable references in output.

This is ; outputs grounded in authoritative content and customer context – making verification part of the system’s architecture rather than an afterthought. In a profession where a single missed citation can cost a client their case, defensibility isn’t a nice-to-have. It’s the whole point. In a profession where a single missed citation can cost a client their case, defensibility isn’t a nice-to-have. It’s the whole point.

What our customers are telling us

The feedback we’re hearing from customers reflects this.

Brooke Conkle, partner in Consumer Financial Services at Troutman Pepper Locke, asked CoCounsel Legal a broad question about recent TCPA developments across two circuits and the solution “immediately zeroed in on the precise ascertainability nuances” between them, the kind of careful parsing that typically requires significant time and research. Her conclusion: “The underlying legal analysis genuinely blew me away and made me rethink what is possible with AI in complex litigation work.”

That’s not the response of someone who found a faster tool. That’s the response of someone who found a different kind of tool.

Andrew Medeiros, managing director of Innovation at Troutman Pepper Locke, captures something I think is fundamental to why this matters: “Lawyers don’t want to just operate software, and that’s not what great AI should do.” What he’s seeing is that CoCounsel Legal keeps lawyers in the analytical mindset they were trained for, going back and forth, challenging answers and steering the work.

He added: “The next generation of CoCounsel Legal seems to be a total game changer as we’ve introduced it to litigation and transactional attorneys. It’s meeting them within their workflows, allowing them to ask plain language questions and then see the step-by-step approach that CoCounsel [Legal] takes to help them draft the document relying upon Westlaw Deep Research and the Practical Law guidance.”

The AI Knowledge Management Department at Morgan Lewis, shared, “We were really impressed with the enhancements to the CoCounsel Legal platform. In our evaluation, it demonstrated strong capabilities in supporting efficient document drafting and in addressing gaps in information, such as filing party details, with both speed and accuracy when prompted. The outputs were well-structured and immediately usable, and the overall workflow was intuitive and easy to navigate. Performance was consistently fast. We are really looking forward to what’s next!”

Why we’re launching this as a beta, and building in public

Just as important as what we’re building is how we’re introducing it to customers.

We are deliberately launching the next generation of CoCounsel Legal as a beta, with a clear commitment to building in public and in partnership with our customers. This beta includes leading law firms such as Troutman Pepper Locke, Morgan Lewis, Carlton Fields, and Caplin & Drysdale, as well as four large enterprise customers. As we move through successive beta waves ahead of general availability later this year, we’re putting the solution in the hands of real lawyers working on real matters – listening closely to where it earns confidence, where it doesn’t, and incorporating that feedback directly into how the product evolves.

We’re inviting customers to help shape what CoCounsel Legal becomes – an AI that works at the level of a senior associate, built with Anthropic with cutting edge technology, engineers for legal work with authority and verification at its core.

This reflects a core belief I hold: the solution itself should be the argument. The strongest validation won’t come from launch announcements or benchmarks alone, but from sustained use – when lawyers choose to rely on the product because it holds up under real professional accountability.

Today’s beta is just the beginning. I’m excited to put the next generation of CoCounsel Legal in the hands of more customers as the year progresses.

I encourage you to explore how it works.

At the conference, we are unveiling new beta features for CoCounsel Legal that tackle document review and agentic execution in a much more powerful way. Over the coming months, these new features will expand CoCounsel Legal’s capability to handle the broadest range of legal work with even more precision. We’ve also released several drafting improvements and announced a new partnership to seamlessly bring our trusted, authoritative content together with a law firm’s proprietary work product.

Built for How You Work

Focusing on speed, security, and collaboration, we’re making CoCounsel Legal faster, more intuitive, and more collaborative – all while maintaining the professional-grade trust and compliance our customers require.

Bulk Document Review (beta)

The beta release of CoCounsel Legal’s bulk document review redefines the approach to high-volume document analysis. Designed to tackle one of legal practice’s most resource-intensive challenges, this powerful solution will empower legal professionals to ingest vast document sets and receive intelligently structured, sortable results in an intuitive table format.

This capability will overhaul traditional review cycles, moving beyond the limitations of manual methods by enabling the efficient analysis of up to 10,000 documents in a fraction of the time. This can directly reduce the number of write-offs firms take when reviewing documents – an area that often impacts profitability per attorney.   CoCounsel Legal’s structured analysis provides immediate access to critical data, allowing for rapid filtering and sorting to pinpoint key information across a spectrum of vital workflows: from optimizing litigation discovery and streamlining M&A due diligence to enhancing regulatory compliance reviews and accelerating contract analysis.

Agentic AI, Grounded in Expertise

Leveraging an unmatched foundation of expertise and authoritative content from Westlaw and Practical Law, CoCounsel uses advanced AI to plan and execute complex, multi-step legal workflows.

Independent Execution of Legal Tasks (beta)

CoCounsel Legal will independently plan and execute complex, multistep legal workflows. With a single natural language prompt, legal professionals can trigger sophisticated workflows – whether conducting legal analysis, drafting documents, or researching case law. The platform intelligently interprets each request, maps the optimal execution strategy, and completes the entire workflow by integrating ¶¶ŇőłÉÄę authoritative Westlaw and Practical Law content with the law firm’s proprietary knowledge base. The result? Less time managing tasks, more time delivering strategic counsel.

Custom Workflows (beta)

CoCounsel Legal’s workflow builder lets legal professionals design, save, and share custom workflows that combine ¶¶ŇőłÉÄę’ trusted content with their firm’s own expertise. It’s a straightforward way to build repeatable processes that capture institutional knowledge and scale best practices across the entire firm—making everyone more efficient and consistent in how they work.

Deep Research on Westlaw – Expanded coverage, enhanced precision

Deep Research now covers state administrative materials in addition to federal sources, giving customers a more complete view of the regulatory landscape. Customers also get timely, curated updates on case law, regulatory changes, and practice developments from JD Supra, Quinlan, and Westlaw Daily Briefings. Plus, the new Clarifying Questions feature asks for additional details when it spots gaps, then reruns the analysis to make each report more precise and tailored to what customers actually need.

Identifying Citation Issues

CoCounsel’s Identifying Citation Issues feature allows users to upload a brief or memo and get an instant review for inaccurate or missing citations eliminating tedious, line by line checks. CoCounsel flags potential errors and presents a clear side by side table showing the original cite and the issue detected, allowing the ability to fix problems fast. Every check is validated against the trusted authority of Westlaw, delivering confidence that the cited sources are accurate before filing. The result: tighter documents, fewer surprises, and more time for the substance of the argument.

AI Overview for Statutes Compare

Comparing statute versions just got easier. With AI Overview in Statutes Compare, users can click once to get a clear, plain language summary of what changed materially between two versions – so less time is spent wading through long sections and cosmetic edits, and more time spent understanding the impact. It filters out formatting and nonsubstantive tweaks to spotlight the revisions that matter for analysis, improving efficiency, reducing the risk of missing a key change, and briefing clients or colleagues with confidence.

Find Practical Law Drafting Language

Find Practical Law drafting language is a new skill available to quickly find the drafting language needed by simply entering in a prompt for specific clauses or to fit certain scenarios, such as “find me drafting language where party A resides in a different state but agrees to this state’s forum.” This AI-powered search capability eliminates the need to navigate complex taxonomies or remember exact clause titles, reducing drafting time while maintaining the rigor and reliability users trust and expect from Practical Law.

Practical Law Search & Summarize in Word

Designed to deepen the Practical Law integration within Word, this feature, coming soon, lets legal professionals ask how-to questions and get summarized, synthesized answers pulled from Practical Law’s full collection of practice notes, checklists, and standard documents. Responses include citations to source materials, making it easy to verify information or dig deeper.

Update Contract Terms

CoCounsel can now handle the tedious work of updating contract terms. Upload a term sheet, and it populates your template or precedent agreement with tracked changes and annotations showing what was revised. It’s a straightforward time-saver that reduces manual data entry errors and frees up legal professionals to focus on higher-level work

Rooted in Your Knowledge

By integrating with document management systems, precedents, and templates, CoCounsel Legal delivers insights that draw from both a firm’s institutional knowledge and ¶¶ŇőłÉÄę authoritative sources

NetDocuments and the ndConnect Program

A with NetDocuments delivers another advantage for legal professionals. With the introduction of ndConnect, NetDocuments’ new interoperability program, legal professionals can securely incorporate AI capabilities from CoCounsel Legal into their document management workflows. Users can now conduct legal research with Westlaw and Practical Law, draft documents based on both their own internal content and that of ¶¶ŇőłÉÄę, and analyze documents with advanced review capabilities – all while maintaining their documents’ integrity and metadata within NetDocuments.