The legal research landscape is being transformed by AI. Understanding these tools — their capabilities and limitations — is essential for modern law students.
1. Specialist Legal AI Tools
| Tool | Provider | Key Features |
|---|---|---|
| Harvey | Harvey AI | Built on GPT-4; trained on legal data; used by Allen & Overy and others |
| CoCounsel | Thomson Reuters | Integrated with Westlaw; document review, legal research, drafting |
| Lexis+ AI | LexisNexis | Conversational legal research with citations to Lexis content |
| Luminance | Luminance | AI-powered contract review and due diligence |
| Casetext | Thomson Reuters | AI-assisted brief analysis and legal research |
2. General-Purpose AI for Legal Research
Tools like ChatGPT, Claude, and Gemini can assist with legal research but have significant limitations:
- Strengths: Explaining legal concepts, brainstorming arguments, drafting outlines, summarising long documents
- Weaknesses: Hallucinating case citations, providing outdated law, lacking jurisdiction-specific accuracy, no access to subscription databases
3. Best Practices for Students
- Use AI as a starting point, not an endpoint: Generate initial research directions, then verify everything on Westlaw/LexisNexis
- Never cite an AI-generated case without verification: AI models frequently invent plausible-sounding but non-existent cases
- Specify jurisdiction and date: Always tell the AI you need English law (or whichever jurisdiction) and specify whether you need current law
- Cross-reference multiple sources: Do not rely on a single AI tool — compare outputs across tools and against primary sources
- Document your process: Keep a record of the prompts you used and the verification steps you took
4. Ethical Considerations
- Academic integrity: Check your university's policy on AI use in assessments
- Confidentiality: Never input confidential client information into public AI tools
- Disclosure: If your university requires disclosure of AI use, comply fully
- Professional responsibility: Lawyers remain personally responsible for the accuracy of their work, regardless of whether AI assisted
Pro Tip
LexIQ's AI Chat Tutor is designed specifically for law students — it provides explanations grounded in UK legal principles and encourages you to verify its outputs against primary sources, building good research habits from the start.