Definely vs CoCounsel (formerly Casetext)
In the face-off between Definely vs CoCounsel (formerly Casetext), which AI Legal tool takes the crown? We scrutinize features, alternatives, upvotes, reviews, pricing, and more.
In a face-off between Definely and CoCounsel (formerly Casetext), which one takes the crown?
If we were to analyze Definely and CoCounsel (formerly Casetext), both of which are AI-powered legal tools, what would we find? Both tools are equally favored, as indicated by the identical upvote count. Join the aitools.fyi users in deciding the winner by casting your vote.
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Definely
What is Definely?
Definely is a LegalTech platform built for lawyers who review complex contracts in Microsoft Word. The company offers a suite of Word add-ins that help legal teams navigate definitions, proof documents, track ripple effects from edits, search precedents, and ask questions about contract language without leaving the document.
The product grew out of a real accessibility challenge. Co-founder Feargus MacDaeid, a former Magic Circle lawyer who is registered blind, could not move through long contracts the way sighted colleagues could. Definely started as a way to reach defined terms and cross-references from inside a clause, then expanded into broader contract review workflows.
Law firms and in-house legal teams use Definely to cut review time, keep formatting consistent, and reduce risk in negotiations. The company reports more than 150 customers worldwide, including firms such as Dentons, A&O Shearman, and DLA Piper plus in-house teams at KPMG, Samsung, and BT Group.
CoCounsel (formerly Casetext)
What is CoCounsel (formerly Casetext)?
CoCounsel is a legal research and drafting assistant now owned by Thomson Reuters after acquiring Casetext in 2023 for $650 million. It runs case law research, document review, contract analysis, and guided drafting grounded in Westlaw and Practical Law rather than the open web.
Standalone legal chatbots pull from generic training data. CoCounsel ties every answer to Thomson Reuters authority, which means citations trace back to Westlaw primary law and Practical Law guidance. The 2026 next-generation release adds Workspaces for matter-specific context, Brief Builder for agentic motion drafting, and a firm-intelligence layer for encoding internal expertise.
Litigation teams, transactional lawyers, and in-house counsel at firms already paying for Westlaw use it to cut research time and review contracts at scale. Pricing is sales-led with no public rate card, and the tool delivers the most value when bundled with an existing Westlaw subscription.
Definely Upvotes
CoCounsel (formerly Casetext) Upvotes
Definely Top Features
Read turns definitions and cross-references into hyperlinks so you can jump through a contract without endless scrolling
Proof runs hundreds of formatting and proofreading checks, from uncapitalized defined terms to leftover placeholders
Cascade traces how edits ripple across clauses, definitions, and references in long agreements
Enhance lets you ask questions about contract language in natural language, with answers tied to specific clauses
Vault searches your document management system for precedent clauses and inserts them with updated cross-references
Works inside Microsoft Word with integrations for iManage, NetDocuments, and SharePoint
Built for enterprise security with SOC 2, GDPR, ISO 27001, and ISO 42001 certifications
CoCounsel (formerly Casetext) Top Features
Deep Research workflows search Westlaw primary law and Practical Law guidance with traceable citations
Document review summarizes contracts, demand letters, and deposition transcripts from uploaded files
Brief Builder drafts complex motions and briefs with built-in citation checking and issue spotting
Workspaces maintain matter-specific documents, precedents, and context across sessions and colleagues
Microsoft 365 and document management system integrations keep drafting inside existing firm workflows
Firm intelligence layer lets lawyers encode internal expertise for reuse across matters
Definely Category
- Legal
CoCounsel (formerly Casetext) Category
- Legal
Definely Pricing Type
- Paid
CoCounsel (formerly Casetext) Pricing Type
- Paid