From Brave’s weblog:
Starting today, online users have a new independent option for search which gives them unmatched privacy. Whether they are already Brave browser users, looking to expand their online privacy protection with the all-in-one, integrated Brave Search in the Brave browser, or users of other browsers looking for the best-in-breed privacy-preserving search engine, they can all use the newly released Brave Search beta that puts users first, and fully in control of their online experience. Brave Search is built on top of a completely independent index, and doesn’t track users, their searches, or their clicks.
It seems like a competent search engine, but I’ve been using SearX lately — a self-hosted meta search engine — and haven’t found many reasons to look elsewhere.