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Lex & Lexi
Lex & Lexi as sparring partners: two AI voices debate a case, and the moot court rehearses the hearing. The results remain suggestions for your own review.
All recordings use fictional sample data – no real cases, people or file numbers. AI output can contain errors and does not replace legal advice.
Debatte im Überblick
Images: 2Lex & Lexi: Two AIs Compete for the Best Argumentation
The start page of the Lex & Lexi debate explains in one sentence that two AIs compete for the best argumentation and arranges the tools in three groups: “Check arguments” with Pro & Con and pleading check, “Develop together” with argument search, chains of provisions and client memo, and “At the hearing” with the negotiation coach. Pro & Con is marked as the entry point; one click on a card starts the setup. Below follows the history of earlier sessions. The arguments of the two AI voices are material to review and do not replace your own legal assessment.
Lex & Lexi Opened from a Case: Tools with a Linked Case
The same overview, opened from a case: under the introduction is the note “Linked to case” with the case name, which you can detach again with the cross. The cards are Pro & Con, Pleading check, Argument search, Chains of provisions, Client memo and Negotiation coach. The linked case provides the context, so you do not have to enter it again. At the top of the page, a note reminds you that AI results can contain errors and must be checked before use.
Debatte aufsetzen
Images: 7Set Up Pro & Con: One Legal Question Is Enough, the Case Flows In
The “Pro & Con” form asks only for the disputed question in the “Legal question / thesis” field; Lex argues for it, Lexi against. A note explains that summary, facts and relationship graph of the linked case flow in automatically. Optionally you attach a document, choose models per side or have the question researched in depth instead. At the bottom, law and language show that they come from the case and can be changed, and masking is switched on. With “Continue — view usage and start” you reach the cost preview before the AI runs.
AI Cost Preview Before the Debate: Usage, Weighting, Duration
Before a debate begins, the “AI cost preview” opens. It states the estimated usage in tokens, the weighting of the chosen model and the resulting load on the quota, the expected duration and the remaining AI quota. With “Start now” the debate begins, with “Cancel” you close the window. So you know the effort in advance and decide deliberately; according to the note, the figures are a rough estimate.
Argument Search: Lex and Lexi Gather Arguments for Your Position
In the argument search, Lex and Lexi work together and gather arguments for your position. Under “Position / facts” you describe which position should be strengthened; summary, facts and relationship graph of the linked case flow in automatically. Optionally you attach documents, choose models per side and change law and language, which are prefilled from the case. Before the start, the next step shows the estimated usage, and the results are suggestions that you review.
Chains of Provisions: Claim Bases and Procedural Points Step by Step
In the chains of provisions, Lex identifies claim bases, Lexi adds procedural points and the burden of proof, step by step. You describe the facts, the linked case provides the context; optionally you add documents and choose the models for both sides. Law and language are prefilled from the case and can be changed, and PII masking is switched on. Only in the next step do you see the estimated usage and start the analysis, whose result is a suggestion to review.
Client Memo: Opportunities, Risks, Costs and Open Questions as a Draft
For the client memo, Lex gathers law and opportunities, Lexi the risks, costs and open questions. You define the client’s role, such as plaintiff, defendant or buyer, and describe the advisory case; the case provides summary and facts. The result is a draft of an advisory memo that you review yourself before passing it on to the client. The usage is shown before the start.
Pleading Check: Weak Points and Opposing Attacks in Your Own Pleading
The pleading check reviews a pleading of your own: Lex examines structure and gaps, Lexi attacks it from the opposing side’s point of view. You state the type of pleading, paste the text, upload a file or choose it from the case or DMS, and optionally add facts and context. The examples in the “Type of pleading” field come from several legal systems. The findings are notes for your revision and not legal advice.
To the feature: Lex & Lexi debate →To the feature: Pleadings & contracts →
Negotiation Coach: Live at the Hearing or Practice with Court and Opposing Side
The negotiation coach helps at the hearing: you ask questions, and Lexi answers with sources from your documents. To practice, you decide under “Practice roles” whether the AI remains an assistant or plays court, opposing side or both in turn, and which side you represent. A note refers to the moot court for practicing the whole proceedings; the live coach is meant for the day of the hearing. The answers are suggestions whose sources you verify.
To the feature: Lex & Lexi debate →To the feature: Moot Court →
Moot Court
Images: 8Moot Court: Three Ways into the Simulation
The “Set up simulation” page in the moot court offers three cards: “From a case”, “From a document” and “Set up manually — without AI, free”. For the first two, the AI prefills the master data; a note names a small part of your AI quota for it. From an uploaded pleading or judgment, the AI recognizes the type of proceedings and the parties and creates a standalone simulation. This way you practice a proceeding in advance against a simulated opposing side.
Moot Court: Choose a Case and Prefill with AI
Here a case is already chosen under “From a case”, next to it is the button “Prefill with AI”. The AI uses summary, checked facts and documents of the case and suggests type of proceedings, parties and instance; you only confirm. Below remain the routes via an uploaded document and the free manual setup. This saves typing the master data, but you should still review the AI’s suggestions before the start.
Moot Court Setup: Choose Civil, Criminal, Labor, Family or Arbitration
Setting up a moot court proceeding begins with jurisdiction and type of proceedings. Available are civil, criminal, administrative, labor and family proceedings, among others, each with the typical course in one line, for example complaint, statement of defense and exchange of pleadings up to the judgment. A step bar at the top shows the five steps: type of proceedings, instance, jurisdiction, parties and summary. You play through the proceedings against an AI judge and an AI opposing side, as practice material.
Moot Court: Court, Amount in Dispute and Economics Shape the Prognosis
In the “Jurisdiction & economics” step you can, if you wish, enter court name, chamber and region as well as amount in dispute, currency, settlement offer, cost risk on losing and collectability. All fields are optional; they control how the prognosis factors in the economic viability of the proceedings. A note under the collectability field explains the scale from zero to one: one stands for secure solvency, and below it the enforcement risk rises. The more you state, the better the prognosis can take your situation into account, and it remains a suggestion to review.
Moot Court: Name the Parties and Choose Your Own Role
In the “Parties” step you name plaintiff and defendant and can add a description for each. Under “Your role” you decide whether you represent the plaintiff’s side or the defendant’s side; the AI then takes over court and opposing side. With “Next” you reach the summary, with “Back” you correct earlier steps. This way you prepare the proceedings from your point of view before the simulation starts.
Moot Court Session: Courtroom, Procedural Phases and Course of Proceedings
The session shows the proceedings in its phases from preparation to judgment, below it the courtroom with bench, plaintiff and defendant; your own side is marked. Below, you choose the model for the AI steps, a note names the weighting in the AI quota, and “Deep thinking” can optionally be activated. The course of proceedings logs the events and can be filtered by event and phase. A note in the image makes clear that the results are practice and working material and that professional responsibility stays with you.
Moot Court: AI Actions for Prognosis, Opponent Reaction and What-If
To the right of the course of proceedings are the AI actions of the simulation, for example “Draft complaint”, “Update prospects of success” with pro/con analysis, “Simulate opponent reaction” and “Simulate judicial order”. For what-if scenarios, suggestions such as a settlement offer or a deviating witness statement offer a quick start, and you type your own question freely. Further down follows the strategic advisor with recommendations for next steps. The simulation helps think through courses of proceedings in advance; the results are practice material.
Moot Court: AI Cost Preview Before Every Simulation
Before an AI action of the simulation starts, the AI cost preview opens. It states the estimated usage and roughly how many pages of text that corresponds to, the weighting of the chosen model, the expected duration and the remaining AI quota. You start only with “Start now”; with “Cancel” you close the dialog without anything running. Results that are already cached are not calculated again, and the figures are a rough estimate according to the note.
Mobil unterwegs
Images: 2Lex & Lexi on the Smartphone: Tools as a Card List
On the smartphone the tools of the Lex & Lexi debate are shown as cards one below the other, grouped into “Check arguments”, “Develop together” and “At the hearing”. Each card has a symbol, a name and a short description, such as “Lex and Lexi debate — pro against con”; Pro & Con is marked as the entry point. With a tap you begin the setup. This way you prepare arguments on the go as well and review the results yourself as on the computer.
Mobile: Moot Court Session with Procedural Phases on the Smartphone
On the smartphone the moot court session sits in one column: at the top title, status and type of proceedings, below the phase bar from preparation to the later procedural stages. Next come the collapsible courtroom, the model choice for the AI steps with a note on the weighting in the quota, and the course of proceedings with filters. A note reminds you that the results are practice and working material and do not replace your own review. This way you prepare a hearing on the go as well.
More categories
- Case file & facts 40
- Deadlines 13
- Pleadings & editor 20
- AI assistant 19
- Contracts 15
- Firm & DMS 24
- Research & knowledge 20
- Client portal 11
- Settings & firm 8
- Understanding proceedings 28
- Letters & replies 13
- Creating contracts 11
- Checking a contract 9
- AI legal information 7
- Calculators 9
- Tools 28
- Legal knowledge 6
- Account & credits 6
- The website 40
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