The search results from Brave are a mixture of Bing results with other results generated by Brave’s index.
The company says they anonymously check Brave’s search results against third-party results and mix them on the results page. Additionally, an option exists to include Google results anonymously.
For the sake of transparency, Brave provides a “Results Independence” metric. This anonymous calculation shows the percentage of search results that come from Brave versus these third parties.
Additionally, Brave relies on Bing for most image and video results. However, even when using these external results, the Brave search engine still preserves user privacy, according to the Frequently Asked Questions page.