Casus is an AI platform for French legal and fiscal research that delivers fast, accurate, sourced answers and professional document generation for legal professionals.
Casus is an AI-powered SaaS platform designed to transform legal and fiscal research for professionals specializing in French law. Trusted by over 1,300 users across seven countries, Casus dramatically reduces research time while ensuring accuracy and compliance with up-to-date, sourced information.
Ideal for tax lawyers, accountants, notaries, wealth managers, and corporate tax departments, Casus offers a user-friendly experience with no training required. Its natural language interface lets users ask questions as they would to a colleague, eliminating the need for precise legal terminology.
Key features include:
Casus Search for instant, sourced answers from over 2 million weekly updated legal and fiscal documents
Casus Draft to automatically generate professional documents like consultations, memos, and emails, exportable in Word and PDF
Casus Analyse to upload and analyze fiscal or legal documents for risk assessment and summaries
Secure hosting in France with AES-256 encryption and full RGPD compliance
A unified credit system simplifying usage across search, drafting, and analysis
Historical query tracking and flexible support options including priority response for business plans
Casus enhances productivity by enabling professionals to build structured legal arguments quickly, improve client responsiveness, and reduce reliance on costly manual research or consulting. Its zero hallucination approach ensures all answers cite real, dated official sources, providing confidence and compliance in every result.
While Casus focuses exclusively on French fiscal, accounting, and patrimonial law and does not replace professional judgment, it serves as an indispensable assistant for legal and fiscal professionals seeking reliable, rapid research and document generation.
Casus integrates seamlessly with standard office tools by allowing exports to Word and PDF formats, facilitating easy incorporation into existing workflows.
Experience a smarter, faster way to conduct legal and fiscal research with Casus, the trusted AI assistant for French law professionals.
Highlights
AI-powered legal and fiscal research specialized in French law with instant sourcing from over 2 million official documents
Automated professional document generation and risk analysis with export to Word and PDF
Secure French hosting with AES-256 encryption and full RGPD compliance ensuring data confidentiality and compliance
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Pricing is based on the duration and terms of your contract with the vendor. This entitles you to a specified quantity of use for the contract duration. If you choose not to renew or replace your contract before it ends, access to these entitlements will expire.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
30 credits per month. Legal and tax research with Search and Draft, for individual professionals.
$99.00
Pro Plan
100 credits per month. Everything in Starter, plus file uploads, automated CERFA audit, and volume credit top-ups, for high-usage professionals and teams.
You choose between two monthly plans priced by credit allowance. The Starter Plan gives you 30 credits per month for legal and tax research, covering Search and Draft. It suits individual professionals. The Pro Plan gives you 100 credits per month and includes everything in Starter. It adds file uploads, automated CERFA audit, and volume credit top-ups. Pricing scales by usage level, so the Pro Plan targets high-usage professionals and teams. Credits reset each month. The plans are tiers, not add-ons, so you pick one based on your expected monthly research volume.
Top-of-mind questions for buyers
What counts as one credit, and what can I do with it?
One credit equals one action within the platform. A single research query uses a Search credit, and each generated document (memo, email, or note) uses a Draft credit. Follow-up questions on a search do not consume extra credits. Credits are split across research, drafting, and document analysis functions.
What happens to credits I do not use by the end of the month?
Credits are allocated at the start of each monthly period and expire at its end. Unused credits do not carry over to the next month and are not refunded. Your allowance resets fresh each month, so plan usage within the monthly cycle rather than saving credits for later.
What does the Pro Plan add over the Starter Plan for the extra credits?
The Pro Plan includes everything in the Starter Plan and raises your monthly allowance from 30 to 100 credits. It adds file uploads, an automated CERFA audit, and the option to top up credits by volume. These extras support document analysis and higher research demand for teams.
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