Does Lexnus give legal advice?

No. It applies the positions your lawyers approved. Advice and escalations stay with your firm.

Will our clients see Lexnus?

No. Lexnus is a tool your firm uses internally. Your clients use a connector with your firm’s name and logo, and the Lexnus brand does not appear in it. The data processing agreement with each client still names Lexnus as your sub-processor, as the GDPR requires.

Which AI assistants does it work with?

It works with any AI assistant that supports MCP, including Claude, ChatGPT and the assistant from Mistral.

Who sets the price to the client?

Your firm sets the price, and the client relationship stays with you.

What if a point can’t be established from the text?

The connector marks it for a lawyer to decide instead of guessing. Your counsel sees which rule it relates to and what was missing or unclear.

Your positions in your clients' AI assistant

Clients draft with AI and send you the result

Your clients no longer start from your template. They ask an AI assistant for an NDA or a supplier agreement, and the draft arrives in your inbox for review. The language reads well, but it carries the assistant’s defaults, so someone at the firm goes through it line by line.

Drafts written by AIThe assistant picks its own governing law, confidentiality period and liability cap. Each one has to be found and corrected by hand.

Review on a fixed feeThe client pays the same whether a draft takes twenty minutes or two hours. On a fixed fee or a subscription, every hour of redlining comes out of your margin.

Answers that vary by counselTwo lawyers in the firm may give a client different answers on the same point when each works from their own precedents.

How it works

01

Build a playbook for one contract type

Start from your templates or a positions memo, uploaded as a Word document. Lexnus proposes rules from it, such as the confidentiality period you accept or the governing law you insist on. A lawyer at your firm reviews each rule and publishes it, and no rule goes live before that.

02

Put your firm’s name on the connector

Lexnus applies your firm’s name and logo to a connector for your clients. Each client adds it to the AI assistant they already draft with.

03

The client drafts, and the connector checks

A client drafts a contract, or receives one from a counterparty, in their AI assistant (Claude, ChatGPT or Mistral, connected over MCP). The connector checks the text against your playbook. Each finding quotes the clause and names the rule behind it.

04

Your counsel sees what falls outside your positions

Points within your positions are handled in the client’s own workflow. Points outside them go to your counsel with the rule and the quoted text, so the review starts from the question that needs a lawyer.

Client’s AI draft

Mutual Non-Disclosure Agreement

Orrin Robotics Ltd (the client) and Marlow Clinics Ltd

3. Confidentiality period

3.1 Each party’s obligations continue for three (3) years from the date of disclosure.

7. Non-solicitation

7.1 Neither party shall solicit or employ any employee of the other party for twenty-four (24) months after this Agreement ends.

12. Governing law

12.1 This Agreement is governed by the laws of the State of Delaware.

Your firm’s connector · Mutual NDA

Checked against 8 firm rules

Violation · Fixed with your clauseGoverning lawDelaware law. Your position is the laws of England and Wales, and the connector offers your clause.

Gap · Fixed with your clauseReturn or destruction of informationThe draft says nothing about information when the NDA ends. Your playbook requires a clause and supplies the wording.

PassConfidentiality periodThree years from disclosure, within your range of two to five years.

Violation · Sent to counselNon-solicitationA 24-month restriction on hiring staff. Your playbook sends any non-solicitation clause in an NDA to counsel, with the rule and clause 7.1.

Firm playbook v2 · published 3 Sep 2026

Illustrative. Fictional client, counterparty, playbook and wording.

What goes into a playbook

A playbook holds your firm’s positions for one contract type. Your lawyers write and approve every part of it, and the connector checks drafts against nothing else.

Rules for each positionEach rule states one position, such as the governing law you require or the range you accept for a confidentiality period. A rule can carry conditions, such as a different limit above a certain contract value.

Your approved wordingThe playbook holds your clauses and fallback wording. When a draft breaks a rule or leaves out a required term, the connector offers your wording in its place.

What goes to counselEach rule has an escalation level. It can flag the point for the client, require approval from your counsel, or reject the term. You decide for each rule which points need a lawyer.

VersionsWhen you change a position, you publish a new version of the playbook. Every client’s next check uses it, and each result records the version it was checked against.

AI reads the draft and extracts the terms. Your published rules decide whether each term complies. Each finding is a violation, a gap where a required term is missing, or a point that needs review. When the text is unclear, the connector marks it for a lawyer instead of guessing. Read more about playbooks.

Why firms offer it

Your name in front of the clientThe connector carries your firm’s name, so the client sees it every time they draft a contract or check a redline.

One standard across the firmEvery client gets the same written positions, whichever of your counsel serves them.

A use of AI you can showYou can show clients how the firm uses AI in its own service, with your lawyers’ positions behind each check.

Alongside the AI tools you recommend

Your clients keep the assistant they use today. The connector adds your firm’s positions to it.

	AI tools clients use on their own	Your connector
Whose positions	The vendor’s defaults, or the client’s own	Your playbook
Whose name	The vendor’s	Yours
What reaches counsel	Questions clients choose to ask	The points that fall outside your positions

You own the advice. Lexnus runs the engine.

Area	The firm	Lexnus
Playbooks and their content	Owns and maintains them	Provides the authoring tools
Client relationship and pricing	Owns them	None
Legal advice and escalations	Responsible	None
Client support	First line	Second line, for technical issues
Engine, connector and hosting	None	Provides and runs them
Branding of the connector	Supplies the name and logo	Applies them

Who controls the data

Your client owns the contracts and the personal data in them, so the client is the controller. Your firm provides the service under its own agreement with the client and acts as processor. Lexnus runs the engine on EU hosting as your sub-processor.

A standard DPA template covers the whole chain. We welcome a review by your privacy counsel before the first client goes live.

Processed in the EEAThe platform runs on Clever Cloud in France. Contract files are replicated to OVHcloud in Germany for disaster recovery, as sealed ciphertext.

Never used to train modelsLexnus does not train on contract text, and does not let its AI sub-processors do so. That is a commitment in the DPA.

Named sub-processorsEvery system that touches contract text is listed by name on the Security page.

The assistant stays the client’sThe AI assistant your client drafts in runs under the client’s own agreement with its provider. It is not a Lexnus sub-processor, and the no-training commitment above does not cover it.

What a pilot looks like

A pilot runs on real client work, with a scope small enough that you can judge the result.

01PlaybooksOne or two contract types that your clients send in most often.

02ClientsTwo or three of your clients, using the connector for real work.

03DurationSeveral weeks, so each client runs several contracts through it.

04EscalationsYour counsel handles them in the same way as today.

What we measure

Review time on drafts that come from pilot clients.
Whether clients use the connector without being prompted.
How long it takes to write a playbook your lawyers find usable.
What your clients would pay for the service.

Your positions reach every client who drafts with AI, under your firm’s name.