Category
Legal research
Operator notes, not a ranking. Compare what each vendor actually sells, then open the official site.
| Company | Job | Fit | Official site |
|---|---|---|---|
| Harvey | Enterprise generative AI built for law firms and in-house legal teams. | Large firms and enterprise in-house departments with procurement processes, document-heavy transactional, litigation and compliance work, and enough seats for firm-wide rollout and usage analytics to matter. | Harvey |
| CoCounsel (Thomson Reuters) | Westlaw-backed legal AI assistant for research and drafting. | Firms and departments already paying for Westlaw or Practical Law, where the value is AI grounded in content they license rather than a model reasoning from the open web. | CoCounsel (Thomson Reuters) |
| Lexis+ with Protégé | Research and drafting over the LexisNexis corpus, with Shepard's cite checks. | Litigation and transactional teams, and in-house departments, that already pay for LexisNexis content and want Shepard's-checked research and first drafts rather than a general chatbot. A fit when iManage, NetDocuments, SharePoint, Google Drive, or OpenText already holds precedent, or the firm drafts in Microsoft 365 and can turn on Lexis Create+. | Lexis+ with Protégé |
| Eve | Plaintiff-firm workspace for intake, medical files, demands, and case-law search. | Plaintiff firms in personal injury, employment, medical malpractice, workers compensation, SSDI, or mass torts that already run SmartAdvocate, Litify, Lead Docket, or Clio and want intake, chronologies, and demands prepared in the matter, with a lawyer still approving anything sent to a client or a carrier. | Eve |
| Clio Work | Cited research and first drafts on Clio Library, with optional Clio Manage write-back. | Small and mid-size litigation or transactional firms that want matter-file analysis and cited research in one workspace. Strongest when the firm already runs Clio Manage or Clio Grow and wants write-back instead of a separate research login. Also fits a firm that will upload documents and use Work on its own. | Clio Work |
| Filevine AI | LOIS reads and writes Filevine matters. Research and Word are separate add-ons. | Litigation and plaintiff firms, including personal injury, that already run Filevine as the system of record and want AI to read and write the matter file. Strongest on LOIS Advanced or Expert, where Console and Word sit on those projects, and on Expert, where MedChron does too. A team that only wants cited research and drafting, with no case file, can use the LOIS Explore trial instead of buying the platform. | Filevine AI |
| Legora | Collaborative legal AI workspace for drafting and research. | Firms and in-house teams doing transactional, advisory and regulatory work who want firm precedent and playbooks driving the output, and who need ethical walls enforced across matters. | Legora |
| Paxton | Published-price legal AI assistant for research, drafting, and medical-record summaries. | Solo and small firms that want one drafting-plus-research tab with a published seat price instead of Harvey-class procurement, especially PI shops that will use the chronology and billing-summary workflows on uploaded records. Also in-house counsel who will upload their own files. | Paxton |
| vLex (Clio) | AI legal research tools, including Vincent; now part of Clio. | Research-heavy practices needing multi-jurisdiction or cross-border coverage, and litigators who want docket alerts and judge or opposing-counsel profiles alongside primary law in one subscription. | vLex (Clio) |
| Cetient | US case-law research and drafting over the public CourtListener corpus. | Price-sensitive solos, students, in-house counsel doing occasional US lookups, and self-represented litigants who need CourtListener coverage without a Westlaw or Lexis seat. Published plans and a free tier with usage limits are the buyer filter. | Cetient |
| Darrow | Legal-data / plaintiff-intelligence company. | Plaintiff firms building class action and mass litigation portfolios who want cases underwritten with projected returns before committing capital, and who can act on an opportunity quickly once it surfaces. | Darrow |
| Hebbia | Cited grids over data rooms, filings, and contracts for deal teams and their lawyers. | Deal teams at funds and banks, and the corporate lawyers who work those transactions, when the question is the same extraction across hundreds of VDR files, credit agreements, or filings and the answer has to trace to a source line. A fit when IntraLinks, SharePoint, or Box is already the room and the buyer will take an enterprise demo instead of a published price. | Hebbia |
| Alexi | Research, drafting, and firm workflows on US and Canadian law, with an optional private instance. | Mid-size and large North American firms (vendor range is about 50 to 500-plus lawyers) and in-house legal teams that want research and drafting shaped by their own precedent. A fit when iManage or NetDocuments is already the DMS and a KM or innovation owner can run SSO, SOC 2 review, and an optional private cloud. | Alexi |
| Trellis | Search US state trial court dockets, rulings, and judge analytics from one desk. | State-court litigators, knowledge-management teams, and insurance or in-house desks that try cases in county trial courts and need grant rates, sample pleadings, and opposing-counsel history for a named judge. Strongest where the coverage table shows documents, verdicts, and analytics, especially California, and for TX, NY, and FL shops that already check the county. Fits operators who want Claude or ChatGPT grounded in Trellis trial-court records rather than a general model. | Trellis |
| Clearbrief | Word add-in that fact-cites litigation briefs against your record and checks case cites on LexisNexis. | Litigation, appellate, and trial teams at boutiques through Am Law firms, plus in-house counsel, courts, government shops, and AAA-ICDR panelists, who already write in Word and have a document record to check. Fits desks that need every fact sentence tied to a page in the file, and partners who want a cite-check report before they sign. HR investigation teams using the same Word workflow for hyperlinked findings reports. | Clearbrief |