Overview
vLex is a global legal research platform covering case law, legislation, and legal commentary from more than 150 countries and jurisdictions, making it the most internationally comprehensive legal research database available. For US firms with cross-border practices, vLex provides access to EU law, Latin American jurisdictions, Commonwealth countries, and many more legal systems where Westlaw and LexisNexis coverage is thin. Vincent AI, vLex's native AI legal research assistant, generates cited summaries and answers legal questions in natural language. vLex's US coverage includes all federal courts and state supreme and appellate courts. The platform offers flexible per-user or firm-wide subscriptions. Law schools that train students for international practices often license vLex alongside a domestic research tool. vLex acquired Fastcase in 2023 and was subsequently acquired by Clio in late 2025, bringing together the largest global legal research database with the most widely deployed practice management platform in North America. For US practitioners, vLex Fastcase remains the most accessible legal research option through bar association partnerships. Non-US practitioners benefit from vLex's deep country-specific content in civil law jurisdictions where common law database coverage is limited. Pricing for direct subscriptions varies by jurisdiction and user count; access through bar memberships is typically included at no additional cost.
Key features
Global Jurisdiction Coverage
Case law, legislation, and legal commentary from 120+ jurisdictions. Unmatched breadth for international research — covers jurisdictions that Westlaw and LexisNexis do not include.
Vincent AI
Natural-language legal research assistant that answers questions, summarizes cases, and identifies relevant authorities across the vLex database. Available in multiple languages for international research.
US Case Law and Statutes
Full US federal and state case law database. Adequate for most US research needs at a significantly lower price than Westlaw. Not recommended as the sole research tool for high-stakes US litigation.
Comparative Law Research
Research how multiple jurisdictions treat the same legal question simultaneously. Particularly valuable for international arbitration, cross-border M&A, and regulatory compliance in multiple markets.
Legal Commentary and Journals
Law review articles, legal commentary, and secondary sources from global academic and practitioner publications — broader internationally than any US-focused platform.
Fastcase Integration
vLex's acquisition of Fastcase means subscribers access Fastcase content, and many bar associations provide vLex Fastcase access as a member benefit.
Pros and cons
Pros
- Broadest international jurisdiction coverage — 120+ countries vs Westlaw and LexisNexis's US-centric depth
- $65/user/month is a fraction of Westlaw or LexisNexis pricing
- Vincent AI provides natural-language research and document analysis across the full global database
- Acquired Fastcase — combined network reaches more attorneys than any other legal research platform
- Good for comparative law, international arbitration, and cross-border transactional research
Cons
- US case law editorial depth is thinner than Westlaw — no equivalent to KeyCite or West headnotes
- Less trusted than Westlaw or LexisNexis in US courts and BigLaw for high-stakes litigation research
- Secondary source library for US practice areas is narrower than Matthew Bender or West treatises
- Vincent AI lags CoCounsel and Lexis+ AI on citation verification reliability
- Interface is functional but less refined than Westlaw's current platform
Pricing
7-day free trial — no credit card required.
Pricing current as of May 2026; verify with vendor before purchasing.
Who it's best for
Best fit for
- International law firms and practices doing cross-border research in multiple jurisdictions
- US small and mid-size firms wanting comprehensive research at a lower cost than Westlaw or LexisNexis
- International arbitration attorneys who need comparative law research across multiple legal systems
- Academic institutions and researchers studying comparative and international law
Not a fit for
- BigLaw litigators doing high-stakes appellate work who need KeyCite reliability (use Westlaw)
- US-only practices where Westlaw's editorial depth is a professional standard of care
- Attorneys who need the full Matthew Bender or West treatise library
Frequently asked questions
vLex starts at $65/user/month. This is the published base rate; enterprise pricing varies by firm size and content subscriptions.
For most US research, vLex is adequate and significantly cheaper. For high-stakes US litigation requiring the most authoritative citator and editorial depth, Westlaw is preferred. vLex is best when international coverage or cost savings are priorities.
vLex acquired Fastcase in 2021. vLex Fastcase is the combined platform, and Fastcase access through bar membership now routes through vLex. Members who had free bar access to Fastcase have it rebranded as vLex Fastcase.
Yes. Vincent AI provides natural-language research, case summarization, and document analysis across the vLex database. Included in the subscription.
Yes — vLex is often the primary research platform for international law firms and cross-border practices because of its 120+ jurisdiction coverage. No other platform matches this breadth.