Jus IA

Jus IA is an AI legal assistant from Jusbrasil that helps lawyers and legal teams research laws, court decisions, and legal references quickly and with high reliability. It is built on top of Jusbrasil’s extensive Brazilian legal database, which contains more than 1.2 billion legal documents, including case law, legislation, and court records. The tool is designed to reduce errors common in generic AI tools by always grounding answers in real legal documents that users can open and verify.

Key Features

• AI legal research that answers questions in natural language and links directly to legal documents, court decisions, and standards used in the answer.
• Document drafting assistant that helps create petitions and other legal documents based on the user’s description, already suggesting relevant legal grounds.
• Reference analysis that checks if citations to case law and legal provisions are real and exist in the Jusbrasil database, reducing the risk of “fake” citations.
• Continuous improvement with human-in-the-loop review by legal experts to keep answers aligned with real legal practice and increase reliability.

​Use Cases

• Lawyers researching case law, legislation, and precedents for ongoing cases, with direct links to the original sources.
• Legal professionals drafting petitions, objections, and other documents faster, using AI-generated drafts that can be edited and finalized.
• Law firms and legal departments checking the validity of citations in documents created internally or by other AI tools, to avoid incorrect or non-existent references.