AI Tools Index / Legal research
category · 4 reviewed

Legal research

Research, citation and analysis tools. Judged mainly on whether a citation can be verified before it reaches a client.

Harvey

Harvey AI
78 /100 B
Legal research · Firm copilots

The enterprise legal-AI default: research, drafting and analysis over firm content, with the procurement paperwork to match the price.

Data protection21
Confidentiality19
Evidential transparency14
Professional usability13
Commercial honesty11
Sep 2026read the review →

Legora

Legora
80 /100 B
Legal research · Drafting & writing

A fast-moving assistant with strong tabular review and Word-native drafting; popular with transactional teams that want output they can edit, not just read.

Data protection21
Confidentiality19
Evidential transparency16
Professional usability13
Commercial honesty11
Sep 2026read the review →

CoCounsel

Thomson Reuters
81 /100 B
Legal research

Research, summarisation and review anchored to a first-party citator — the most defensible answer in the category to the hallucinated-citation problem.

Data protection21
Confidentiality19
Evidential transparency18
Professional usability11
Commercial honesty12
Sep 2026read the review →

Vincent AI

vLex
74 /100 B
Legal research

Research assistant over a large international corpus, with citation-first answers and a breadth that suits cross-border work.

Data protection20
Confidentiality18
Evidential transparency15
Professional usability11
Commercial honesty10
Sep 2026read the review →

Not sure this category is your problem?

The AI use audit finds what is actually deployed across the firm — declared or not — and tiers it by what it does to client confidentiality. Two weeks, £2,500.

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