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Lexanon AI

Lexanon provides a secure interface for using your AI models through API keys. It automatically decodes pseudonymised responses for clear reading, helping legal professionals with matter context, custom commands and creation of coded and decoded documents and deliverables.

Available in Lexanon AI

Fable 5.1

Anthropic's latest model

AI conversation

Chat with your choice of model, without data leaks.

23:59 · You

Obligations

summarise the obligations for [ PERS1 ]

AI · Claude Opus 4.7 23:59

I am reviewing the attached pseudonymised document and cross-referencing mentions of [ PERS1 ], [ ORG1 ] and [ ORG2 ] to extract the obligations set out in the framework agreement…

Write to AI…

Configured models

Pseudonymised documents

Only pseudonymised documents with an associated mapping key are listed. Import the .lexanon-key file into the input bar if needed.

Saved in Lexanon, not imported from your computer.

Commands

AI responses are indicative. Check them before using them in a matter.

Lexanon Tools

Legal tools developed by Lexanon, triggered automatically by the model you use.

Analysis

Timeline

Key information

Instruction

Obligations

Rewrite

Summary

Visual

Artifacts

Infographics, dashboards and summaries generated in chat, exportable as HTML from Lexanon.

16 June, 15:36 · You

AI · Mistral Large 16 June, 15:36

I am preparing a revenue chart for [ORG 1] (2018–2024): stacked print/digital bars and a margin line. Amounts are pseudonymised using Lexanon codes.

Document list 1 document Completed

Reading excerpt “Revenue [ORG 1] · print / digital · margin…” Completed

Reading excerpt “2018–2024 segments · fictional data · comparison…” Completed

Pseudonymised data : Lexanon codes are replaced by the matter's values after decoding.

Would you like to:

Export as downloadable HTML?
Change the assumptions (other years, segments or growth rates)?
A fictional comparison with a competitor (LexisNexis, Lefebvre)?

Revenue [ORG 1], pseudonymised Chart

Revenue [ORG 1], pseudonymised Export HTML

Revenue [ORG 1], pseudonymised

Export HTML

[ORG 1], Consolidated revenue

2018–2024 trend · breakdown by activity

Pseudonymised data

2024 revenue[AMOUNT 1]

7-year growth+47 %

Digital share61 %

CAGR+5,7 %

Operating margin (%) Digital & databases (€m) Print publishing (€m)

Lexanon pseudonym codes; switch to Decoded to reveal the matter's values.

Artifact

Search library All artifacts Delete all (5)

Revenue [ORG 1], pseudonymised data

Chart

Dashboard [ORG 1], KPI trends…

Chart

Conclusion [ORG 1], commercial litigation

Document

Service agreement, draft v2…

Document

Formal demand [ORG 3], overdue payment reminder

Document

API key management

Monitor token usage and use each model's strengths according to your tasks.

Key	Created by	Saved on	Last used
Claude sk-···0QAA	user	16 June 2026	16 June 2026
Gemini AI···bxQ	user	10 June 2026	16 June 2026
Mistral sk-···pXvF	user	13 June 2026	16 June 2026

AI privacy

Lexanon keeps your AI use safe for personal data through an advanced security mode: review before import, consistent prompt pseudonymisation and no sensitive information visible to the model. Lexanon receives the model's response and then decodes it.

Enhanced protection (recommended) Disabled

Lexanon pseudonymised documents only (codes [PER1], [ORG2], etc.).
Quick pseudonymisation check before attaching.
No import from your computer.
Automatic prompt pseudonymisation.

Send to AI

Review the pseudonymised document before attaching it to the discussion.

INVOICE · pseudonymised preview

Invoice no. 2024-0847

Issuer: [ORGANISATION 1]

Customer: [PERSON 1]

Address: [ADDRESS 1]

Consultancy services, matter [REF 1]

Amount excl. VAT: €4,850.00 · VAT: €970.00

Total incl. VAT: €5,820.00

Fictional document; pseudonym codes are for illustration.

Send to AI

Invoice-6H6ZOW3S-0010_compressed.pdf

Lexanon will attach the same final PDF as the export. Review the pseudonymised document before opening the chat.

I have reviewed this document and confirm that it is correctly pseudonymised.

Tick the confirmation above to enable sending.

Chat using your API keysYour providers, your billing; nothing goes through Lexanon.Provider connectionsConnect each service in a few clicks.AI mattersGroup discussions by matter.Discussion historySearch, pin, rename or export.Document attachmentsAttach a file from the library or your computer.Document referencesReference a passage or file in the chat.Slash commandsCustomisable professional shortcuts (/obligations, /summary, etc.).Tokenised dataNo sensitive data leaves the computer in plain text.Context memoryKeep track of long threads without resending everything.Review after anonymisationAnalyse an anonymised document using its mapping key.Export discussionDownload a conversation or a complete matter.DashboardSpending, connections and usage at a glance.API key managementMonitor token consumption and choose the right model for each task.Security settingsControl what is sent to models.Custom commandsCreate your own slash prompts.Budget and capsDaily or monthly limits in euros.Model selectionChange models according to the task.Custom providersAdd an OpenAI-compatible service.