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Selected comparison

Lexis+ AI vs Thomson Reuters CoCounsel

This comparison was retrieved by database IDs selected from the catalog.

Lexis+ AI favicon

Lexis+ AI

LexisNexis

Thomson Reuters CoCounsel favicon

Thomson Reuters CoCounsel

Thomson Reuters

Overview
Rating
—
—
Category
Developer Tools
Developer Tools
Subcategory
AI Legal Research
AI Legal Research
Company
LexisNexis
Thomson Reuters
Status
Active
Active
Launch year
2023
2023
Tags
legalairesearchcontractslexisnexisenterprise
legalairesearchcontractswestlawenterprise
Pricing
Starting price
FreeBest value
Free
Pricing model
Enterprise
Enterprise
Free plan
No
No
Free trial
✕
✕
Pricing notes

Enterprise subscription through LexisNexis. Pricing by seat and feature set. No public pricing or individual consumer access.

Enterprise licensing through Thomson Reuters legal product subscriptions. Integrated into Westlaw subscriptions. No standalone consumer purchase.

Capabilities
Best for
Legal researchContract drafting and reviewLitigation brief preparationCorporate legal operationsPractice guidance
Legal researchContract drafting and reviewDue diligenceLitigation preparationCorporate legal operations
Target audience
LawyersLaw firmsCorporate legal departmentsLegal operationsParalegals
LawyersLaw firmsCorporate legal departmentsLegal operationsParalegals
AI type
Document Analysis LLM
Document Analysis LLM
Modalities
TextDocument
TextDocument
Technical
Model provider
LexisNexisMicrosoft
Thomson ReutersOpenAI
Model names
—
—
API available
✕
✕
Open source
✕
✕
Deployment
EnterpriseSaaS
EnterpriseSaaS
Platforms
WebLexisNexis integrated
WebWestlaw integrated
Integrations
LexisNexis productsMicrosoft 365API
WestlawPractical LawMicrosoft 365API
Team collaboration
✓
✓
Trust & security
Security

SOC 2 Type II. ISO 27001. GDPR compliant. Attorney-client privilege and legal confidentiality in enterprise agreements.

SOC 2 Type II. ISO 27001. GDPR compliant. Attorney-client privilege and legal confidentiality in enterprise agreements. FedRAMP authorised.

Privacy notes

Legal documents processed under enterprise data handling agreements with attorney-client privilege protections. Customer data not used to train AI models per LexisNexis enterprise terms.

Legal documents processed under enterprise data handling agreements with attorney-client privilege protections. Customer data not used to train AI models per Thomson Reuters terms.

Verdict
Pros
  • Grounded in LexisNexis's authoritative legal database for law firms already subscribing to LexisNexis
  • Integrated into existing LexisNexis workflow without requiring new platform adoption
  • Shepard's Citations integration for citation validation within AI-generated research
  • Covers case law, statutes, regulations, AND secondary sources like law review articles
  • Grounded in Westlaw's authoritative legal database rather than general internet content
  • Integrated into existing Westlaw workflow for law firms already subscribing
  • Legal research citations to verified authoritative sources
  • Enterprise legal confidentiality protections in data handling agreements
Cons
  • Enterprise-only through existing LexisNexis subscriptions
  • All AI outputs require attorney review — not a replacement for legal judgment
  • Competes with Thomson Reuters CoCounsel — choice depends on existing database subscription
  • Enterprise-only through existing Thomson Reuters subscriptions
  • All AI outputs require attorney review — not a replacement for legal judgment
  • Premium pricing through existing Westlaw subscription costs

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