OpenCase brings frontier AI to the work of a law practice: research, drafting and document review, built for solo attorneys and small firms. Ask a question in plain English and get an answer from primary law: court opinions, statutes, regulations and court rules. Every answer cites its sources, so you can check the work. Citations open to the passage they rely on, and OpenCase flags cases that later courts have questioned or overruled. Upload your case files once and ask across them with the law alongside, review contracts against your firm's playbook, and research and edit inside Microsoft Word. Sign up online and start the same day, on a monthly plan you can cancel anytime.