LexGPT

AI & legal practice · 2026

AI wrote it.
Can you defend it in court?

LexGPT is the verification layer for AI-assisted legal work. Every citation checked, every clause traced to a source, every draft signed off by a human — before it reaches a client or a judge.

Get the free handbook See pricing

Written for solicitors, barristers and in-house counsel, not engineers. Nothing assumed.

Legal AI verification2 min read
The shift

Generating text is free. Defending it is the job.

Clients now arrive with AI-drafted documents. Courts impose sanctions for invented authority. The differentiator is no longer who can generate the fastest — it is who can stand behind every line.

Every citation checked

Each authority verified as existing, current, and standing for what it claims — with the pin cite and the date.

Every clause sourced

Each clause traced to the precedent, statute or instruction it came from, so the file is auditable.

Every draft signed off

A named lawyer reviews and approves. Nothing leaves the firm as an unreviewed AI output.

The failures

The seven ways legal AI gets it wrong

Fabricated cases

Citations to judgments that do not exist. Sanctions, embarrassment and costs.

Misquoted authority

A real case cited for a proposition it never decided.

Stale law

Overruled or superseded authorities, or a rule that changed last month.

Wrong jurisdiction

A US doctrine smuggled into an English or EU matter.

Confidentiality leaks

Privileged material pasted into a public model. Waiver risk.

Over-confident advice

A firm recommendation with a caveat buried or missing.

Precedent drift

A drafted clause that quietly changes the deal a client agreed.

Every one of these is caught by the same routine — taught in the free handbook.

The free handbook

The Legal AI Handbook, free.

The mindset, the seven failures, the four-file harness, a full worked example and a glossary — about forty minutes, in plain English.

Download the free book What's inside

The one rule

Every claim in a legal document is either authority you can cite or your own reasoning. Never let the second wear the costume of the first.

For firms

One standard across every matter.

We build the verification harness inside your own environment — your precedents, your practice areas, your confidentiality rules. Fixed scope, procurement-friendly.

Harness Sprint

$4,500 · two weeks. One team, one practice area, a working harness and a golden set from your own precedents.

Harness Build

$12k–25k. Firm-wide: rule packs per practice area, verification ledgers, training and rollout.

Harness Care

$750–2k/mo. Re-tested on every model update, refreshed precedents, audit exports, priority support.

Talk to us about your firm

Everything, at a glance

TierWhat you getPrice
FreeThe Legal AI Handbook + citation-check prompt pack$0
Pro book14 rules, 6 checklists, 3 procedures$99
Which AI?Model selection for legal work$49
TemplatesContract, research, intake and governance packs$19–99
CourseBuild your firm's harness, on screen$399
Firm buildDone for you, tuned to your practiceOn request
Start with the free handbook