AI for Law Practices

Home / AI Legal Research

Westlaw

Legal research service whose AI tiers add AI-Assisted Research, Jurisdictional Surveys, Deep Research, a Litigation Document Analyzer and Claims Explorer.

Visit legal.thomsonreuters.com

What the AI doesAI-Assisted Research, AI Jurisdictional Surveys, Deep Research, Litigation Document Analyzer, Claims Explorer, CoCounsel
Who it servesSolo attorneys, Small law firms
Starting price$170.95/mo (Westlaw Edge with AI-Assisted Research); Westlaw Advantage $288.60/mo
Pricing modelPer month flat
Free trialYes
Best fitSolo attorney, Small firm
CategoryAI Legal Research
Also fitsKnowledge Management & Firm AI Assistants
Works withMicrosoft Word, CoCounsel Legal
ConfidentialityPosted on the vendor's site: client data is not used to train AI models; SOC 2; ISO 42001; ISO 27001 named.
Checked2026-10-31, against the vendor's own page

Who it's for

Westlaw is listed as a fit for solo attorneys and small firms, and the vendor names solo attorneys and small law firms on its own site. The job it gets hired for: answering a legal question with citations you can check, and drafting the memo or brief from them. It also fits the Knowledge Management & Firm AI Assistants category.

What it costs

Westlaw starts at $170.95/mo (Westlaw Edge with AI-Assisted Research); Westlaw Advantage $288.60/mo, per month flat. There is a free trial.

Good to know

Westlaw's AI tiers post public starting prices — Westlaw Edge with AI-Assisted Research from $170.95/month and Westlaw Advantage from $288.60/month — and Thomson Reuters sells them online to new-customer firms of up to 10 attorneys. Deep Research and the Litigation Document Analyzer come with the Advantage tier.

More in AI Legal Research