An honest review of Casetext CoCounsel — the AI legal research tool backed by Thomson Reuters. We test research accuracy, Westlaw integration, and value for litigators.
What Is Casetext CoCounsel?
Casetext CoCounsel is an AI legal research assistant, now part of Thomson Reuters, that answers legal research questions with citations from real Westlaw cases. It also assists with contract review, deposition prep, and document analysis.
Legal Research Accuracy
CoCounsel's research accuracy is its defining strength — it cites actual Westlaw cases, not hallucinated ones. In our testing across contract, tort, and employment law, it delivered accurate, well-cited answers in under 60 seconds for questions that would typically take an associate 30–60 minutes.
Deposition Preparation
CoCounsel's deposition prep feature analyses transcripts and prior statements to surface inconsistencies and prepare cross-examination questions. Litigators consistently identified this as the most time-saving feature.
Pricing
From approximately $100/month for individual attorneys. Thomson Reuters subscribers may have access through their existing subscription.
Verdict
The best AI tool for litigators and attorneys spending significant time on legal research and deposition preparation. Westlaw integration and citation accuracy set it apart from general-purpose AI. Rating: ⭐ 4.7/5