They fetch web content on-demand to answer user queries. They may apply technical filters like robots.txt or block certain domains, but they do not parse or enforce each website’s Terms of Service (ToS). Web-enabled features are focused on convenience, not legal compliance. Perplexity AI: Received cease-and-desist letters from The New York Times and other publications for allegedly scraping and summarizing content against site policies (munckwilson.com, en.wikipedia.org, businessinsider.com).