🔍 What is Casetext?

Casetext is an AI-powered legal research platform that helps lawyers find relevant cases, statutes, regulations, and legal arguments faster and more accurately than traditional research methods. Developed by Casetext Inc., the platform uses natural language processing and proprietary AI models including CARA (Context-Aware Research Assistant) and CoCounsel to transform how legal professionals conduct research. Casetext has become one of the most widely adopted AI legal research tools, used by thousands of law firms, corporate legal departments, and government agencies.

The platform's breakthrough technology allows lawyers to research using plain English questions rather than Boolean operators. Users can ask questions like "Can a landlord evict a tenant for having an emotional support animal?" and Casetext's AI will find the most relevant cases, statutes, and regulations with explanations of why each result is relevant. The AI also provides citator information, showing whether cases are still good law and how they've been treated by subsequent courts. This dramatically reduces the time lawyers spend on research from hours to minutes.

Casetext's CoCounsel, powered by GPT-4, represents the next generation of legal AI. CoCounsel can perform complex legal tasks including document review, deposition preparation, contract analysis, and chronology creation. It can review thousands of documents to find relevant information, compare deposition testimony against exhibits, and identify inconsistencies. Casetext was acquired by Thomson Reuters in 2023, combining its innovative AI technology with the global legal publishing leader's resources and reach, while continuing to operate as an independent platform within the Thomson Reuters portfolio.

✨ Key Features

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Natural Language Legal Search Ask research questions in plain English and receive relevant cases, statutes, and regulations with AI-generated relevance explanations.

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CARA Brief Analysis Upload a legal brief to automatically identify missing citations, find relevant cases for cited points, and discover opposing authority.

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CoCounsel AI Assistant GPT-4 powered legal assistant that performs document review, contract analysis, deposition preparation, and timeline creation.

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Citator & Case Validation Comprehensive citator showing case treatment, subsequent history, and whether cited authority remains good law.

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Statutory & Regulatory Research Search and analyze federal and state statutes, regulations, court rules, and municipal codes with AI-powered cross-referencing.

💰 Pricing

Casetext Standard

Contact for pricing

Full legal research platform with natural language search, CARA brief analysis, citator, and access to federal and state case law.

CoCounsel

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All Standard features plus GPT-4 powered AI assistant for document analysis, deposition review, contract analysis, and automated workflows.

📊 Pros and Cons

Pros

Natural language search dramatically reduces research time compared to traditional Boolean-based legal databases
CoCounsel AI assistant performs complex legal analysis tasks that previously required hours of associate time
CARA brief analysis is unique in identifying missing citations and opposing authority from uploaded briefs

Cons

Pricing is not publicly disclosed, requiring consultation for cost assessment
AI-generated research results should always be verified by human attorneys for accuracy and completeness

🎯 Best For

Legal research: attorneys quickly find relevant case law and statutes using natural language questions instead of complex search queries Brief preparation: lawyers upload draft briefs to CARA for citation verification, gap analysis, and opposing authority identification Document review: CoCounsel analyzes thousands of documents to find relevant information, compare testimony, and create case chronologies

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