CaseMark vs CoCounsel: pricing, features and which to choose

CaseMark builds AI for litigation teams, court reporters and litigation support companies. It first became known for AI deposition summaries, and its main product is now Para, which it describes as an AI colleague for legal teams; Para was formerly called CaseMark Operator. Its users include personal injury and commercial litigation firms, paralegals, legal nurse consultants and court reporting agencies that resell summaries under their own brand. CaseMark says it is SOC 2 Type II audited and HIPAA compliant, encrypts data with AES-256 at rest and TLS 1.2 in transit, and does not use customer data to train models on its Pro and Enterprise plans.

Para takes requests in email, Microsoft Teams, Slack, meetings and its web app, and it records meetings on Zoom, Google Meet, Teams and Webex. It connects to Clio, Smokeball, Google Drive and Microsoft 365 for documents. Teams assign it work such as reviewing medical records, drafting demand letters, writing motions for summary judgment or preparing deposition bundles, and Para keeps working after hours, then reports back with drafts and questions. CaseMark says Para checks with an attorney before anything leaves the firm and that work going to a court or client goes out under an attorney's name. Projects, automations, skills and meetings are included on every plan.

CaseMark's strengths are low entry prices, pay-per-file summaries with no subscription, page-level citations, multiple deposition formats, white label options for court reporters and Para's ability to work in email and chat tools lawyers already use. Its weaknesses are a smaller company than the major legal platforms, no case management of its own and inconsistent published rates for some summary types. Filevine and Litify include deposition and medical AI inside full case management. EvenUp and Supio focus on personal injury demands and case analysis. CoCounsel and Harvey offer broad legal AI for research and drafting. Choose CaseMark if you want affordable, cited summaries or an AI colleague without changing systems.

CoCounsel is a professional legal AI assistant made by Thomson Reuters and descended from Casetext's product of the same name. Casetext launched CoCounsel in March 2023, and Thomson Reuters announced a $650 million acquisition of Casetext that year. The product now sits across Thomson Reuters' legal portfolio rather than operating as an independent Casetext service. Thomson Reuters said in February 2026 that one million professionals across 107 countries and territories had chosen CoCounsel across legal, tax, audit, compliance, and related products. Legal users are the clearest audience, including litigators, transactional lawyers, in-house teams, and firms that already buy Westlaw or Practical Law. The acquisition brought Casetext's product expertise into Thomson Reuters, while the current offering adds licensed content and broader distribution.

A typical workflow starts with a natural-language request, an uploaded file, a connected document repository, or a Thomson Reuters research collection. Users can summarize and compare documents, extract information, identify missing provisions, prepare deposition materials, build timelines, draft text, and check contract policies. Knowledge Search can find material in a firm's own repositories, while Browse Library exposes expert-built prompts and skills. Agentic workflows handle multi-step assignments, and Deep Research gathers and synthesizes authority for a more complete answer. Outputs are designed to include citations or links where selected content supports them, but lawyers still need to check quotations, authorities, privilege, confidentiality, and final work product before relying on it. The system assists legal judgment rather than replacing professional review.

CoCounsel's strongest case is a research-heavy practice already invested in Thomson Reuters content. Its citations, document skills, repository connections, Microsoft 365 integrations, and agentic workflows can reduce switching between research and drafting tools, though outputs remain subject to legal review. Law firms should compare it with Harvey, Lexis+ AI, and Legora rather than assume the content advantage settles the decision. Independent 2025 benchmarking placed CoCounsel among the stronger tools across document tasks, while Law360 reported that some early adopters preferred Harvey or Legora for interface and workflow reasons. Privacy terms prohibit using customer prompts and content to train third-party models, with configurable retention, encryption, and zero-retention model APIs. Choose CoCounsel when Westlaw or Practical Law is central and authoritative citations matter most.