What is RegAI

RegAI is an AI assistant built for legal professionals. It answers your questions from Taiwan's laws and court decisions and shows the sources it cites, so you can check them right away. Open regai.tw to use it: nothing to install, and no need to sign up first.

What RegAI can do

• Ask questions: ask in plain language. RegAI searches the laws and decisions itself, answers from what it found, and lists the articles and decisions it cites.
• @DB database search: search laws and court decisions directly, read the full text, or add a result to the chat and ask RegAI about it.
• Workspaces and documents: keep chats and documents apart by matter or practice area; upload documents and ask about them.
• Groups: share a workspace with other RegAI Pro members.
• RegAI Editor: draft and revise briefs, with RegAI proposing changes with reasons and checking statute citations.
• MCP: use RegAI's laws and decisions in Claude, ChatGPT or another AI assistant you already use.
• LINE: look up laws and ask legal questions on LINE.

Which plan includes which feature: see Plans compared.

Where the data comes from

• Laws: the laws and regulations in force from the Laws & Regulations Database of the ROC, over 14,000 of them.
• Court decisions: from the Judicial Yuan's published judgments, the decisions of the courts of last resort such as the Supreme Court and the Supreme Administrative Court, over 500,000 of them.
• Constitutional: the Interpretations of the Council of Grand Justices (Nos. 1 to 813) and the Constitutional Court's judgments.

The data is updated regularly. The latest amendment to a law or a decision just published may not be included yet, but you can still find recent decisions under Courts > Latest; for an important citation, follow its source link and check the original.

Before you rely on an answer

• RegAI's answers are generated by AI. They can contain errors or omissions and are not legal advice. The original laws and decisions cited are what count, and the judgement is yours.
• The citations listed below an answer are the material RegAI actually found. If RegAI mentions an article or a decision that is not among the citations, check it with extra care.
• The rules of use are in the Terms; how your data is handled is in the Privacy Policy.

In this section

• Plans compared
• Signing in and your account