Quick answer

Lawyers in 2026 use AI for: contract review (Spellbook, Robin AI) — biggest time saver; legal research (Lexis+ AI, Westlaw Edge AI, Harvey) — but always verify citations; document drafting; e-discovery; client communication drafts. Hallucinated case citations remain the biggest risk — multiple lawyers have been sanctioned in 2024-2026 for filing AI-fabricated cases.

Legal AI exploded into firms in 2024-2026. Some tools are genuinely transformative (contract review). Others are dangerous if used without supervision (legal research with AI citation generation). Here is the honest breakdown.

Tools that work

  • Spellbook — contract review and drafting directly in Word
  • Robin AI — contract review focused on first-pass analysis
  • Harvey — Allen & Overy's GPT-4-based assistant, now licensed broadly
  • Lexis+ AI — Lexis-grounded research (citations sourced from real cases)
  • Westlaw Edge AI — Thomson Reuters' equivalent
  • Even Up AI — automates demand letters for personal injury firms

The Mata v. Avianca case (2023) — lawyer used ChatGPT for research, filed brief with six fabricated cases, was sanctioned. Multiple repeat incidents in 2024-2026. Citation hallucination is the single biggest risk. Always verify every case AI cites against a real database.

Where AI saves the most legal time

  • Contract review — 60-80% time reduction on first-pass NDA/MSA review
  • Document drafting — first drafts of standard agreements in minutes
  • Discovery review — AI flags relevant documents in massive document sets
  • Client communication — diplomatic drafts of difficult emails
  • Brief structuring — outline generation, not legal arguments

Ethics and disclosure

Most state bars now require lawyers to be competent with AI (failing to use it where appropriate is itself an ethics issue). Many courts require disclosure of AI use in filings. Always verify citations, never share client-confidential info with consumer AI (use only platforms with attorney-client privilege agreements).

Related reading

How to Use AI at Work Without Getting in Trouble The EU AI Act Is Now in Full Effect — What It Actually Means for You What Does "Hallucination" Mean in AI — and Why Does It Happen?

Bottom line

Contract review tools (Spellbook, Robin) are genuinely transformative. Research tools require strict citation verification. Never use consumer AI for client-identifiable matters. Lawyers using AI well in 2026 are billing fewer hours but charging more per case.