They don’t mention their crawler anywhere in their docs, either. So, if you wanted to block Brave from crawling and indexing and ultimately selling your content to third parties, your only option for the time being would be to block all crawlers, which is how Brave would be able to “respect robots.txt”.

Ivanovs, A. (2023, July 17). The shady world of Brave selling copyrighted data for AI training. Stack Diary. https://stackdiary.com/brave-selling-copyrighted-data-for-ai-training/