How Clausa uses AI

Who uses the AI

Solicitors, trainees and staff of the firms that buy seats. Clausa is not offered to the public. A firm's clients do not use the AI: the client portal shows them only what a solicitor in the firm approved.

Clausa is software for solicitors. It drafts and organises; the solicitor who signs off is responsible for the work. Check every fact, date and amount before you sign off.

Clausa drafts with AI from the documents in this matter. Every rule shows its source. Every fact shows the document it came from.

What the AI does and doesn't do

• Drafts start from the matter: the solicitor's instruction, the documents in the file, and the precedents and library items the firm approved.
• Every rule shows its source, checked word for word against the Act by Clausa's code, outside the AI model. Every fact shows the document it came from.
• A legal statement without a source is marked No source and cannot be signed off until a solicitor writes it or removes it.
• Dates from the AI or from a calculator go to the matter as Unconfirmed until a solicitor in the firm confirms them.
• The AI never offers an undertaking, never writes a witness statement and never cites or describes a court or tribunal decision.
• Only a solicitor in the firm signs off, in a session with two-factor authentication. Clausa does not send anything on the firm's behalf.

Which rules of the AI Act apply

Clausa is a tool for solicitors' practices. It is not used by or on behalf of a judicial authority, so it is not a high-risk system under Annex III, point 8. Its obligations are those of Article 50.

Under Article 50(2), the files Clausa exports are marked in a machine-readable way:

Files exported from Clausa carry document properties recording that an AI drafting tool produced the first version and that a solicitor in your firm reviewed and approved the version you export. Clausa adds these properties to meet its obligations under Article 50(2) of the EU AI Act. Keep them on the generated version. Nothing is printed in the body of the document.

• A version exported before sign-off is marked as generated by AI. A signed-off version is marked as drafted with AI and reviewed by the firm, with its sign-off code. The marks are in the file's properties: the custom properties of a .docx, the document information and XMP of a .pdf.
• Clausa treats a version the solicitor rewrote as output of the system too, as a precaution, and marks it the same way.
• On a submission to the WRC, a solicitor can turn on one sentence at the end saying that software using AI prepared a first draft. It is off by default; whether to include it is the firm's decision.

Models and the firm's data

• Clausa uses Claude models made by Anthropic, run through Google Cloud Vertex AI in the EU. Clausa's code refuses any Vertex AI location outside the EU.
• Search over legal texts and over the firm's documents and precedents uses Google's gemini-embedding-001 model on Vertex AI in europe-west1 (Belgium).
• Anthropic's own service is used only on a developer's machine with made-up data; Clausa's code refuses it anywhere else.
• Clausa does not use a firm's data to train AI models and never uses one firm's data for another firm.
• Clausa records the cost and timing of each AI call, never its content. Personal details are removed from a question before it is searched.

To be confirmed by the solicitor: That Google does not train on the data or keep it, in the signed Google Cloud terms for Vertex AI.