"Whether the defendant failed to perform the contract is the key issue in this case. In particular, there is a discrepancy between the plaintiff's submitted materials and the defendant's rebuttal materials in the calculation of damages, so further review is necessary."
This was the response after uploading hundreds of pages of case files to the legal artificial intelligence (AI) AiLex and asking it to organize the issues. When instructed to draft a brief, a court-ready draft was completed in less than a minute. What would have taken a solo attorney several days was finished with a few clicks.
This was the AiLex demonstration observed at the Korea legal industry expo (LES 2026) at the aT Center in Yangjae-dong, Seoul, on the 24th. AiLex, developed by the legal tech startup A2D2, is an AI that organizes and analyzes evidence reaching tens of thousands of pages. It can be used for both civil and criminal cases.
AiLex's strength lies in quickly analyzing massive data to extract the core of a case. It rapidly analyzes documents numbering in the thousands to tens of thousands of pages, financial transaction records, call records, and KakaoTalk chat histories. Based on the uploaded materials, the AI automatically derives the case's key issues and the grounds for assessing advantages and disadvantages.
Work proceeds in a chatbot format. For example, if you enter in natural language, "Find the details of the amount the plaintiff remitted to the defendant last month," the AI analyzes the registered materials and locates the relevant information.
AiLex also provides a timeline that allows users to grasp the case in chronological order. This means there is no need to read through voluminous evidence documents to find dates, enter them one by one in Excel, and then rearrange them chronologically.
In particular, it can visualize the relationships among people appearing in the case so they can be understood at a glance. It can also cross-check the statements of those involved to identify even conflicting testimony.
Jang Il-jun, CEO of A2D2, said, "Unlike other legal AI, AiLex is differentiated by the fact that there is no limit on the volume or number of materials that can be uploaded," adding, "Since the service launched in Dec. last year, it has been used by 400 law firms, and monthly inquiries are increasing by 20%."