Different thing. That's their Brave Rewards thing, which shows you ads (your choice how often) as toaster popups and gets you a part of the revenue as BAT (which can be used to support creators with Brave's tipping service).
The search engine itself shows keyword based ads on search results pages, and Brave offers a $3/mo subscription for ad-free search.
The search engine itself shows keyword based ads on search results pages, and Brave offers a $3/mo subscription for ad-free search.