Artie Beaty/ZDNETBig changes could be on the way for Reddit. The site is testing a major injection of AI into the platform and considering putting certain content behind a paywall.Also: The best AI search engines: Google, Perplexity, and moreJust as Google tried (and eventually failed) to do earlier this year, Reddit is bringing AI to its search results.In an earnings call earlier this week, Reddit CEO Steve Huffman announced plans to test AI-powered search results that summarize content for the site’s 1 billion searches every month. This follows an announcement four months ago that Reddit would be using AI to moderate communities. Many people, Huffman explained, use Reddit like a search engine, “literally typing into a box exactly what they’re interested in.” With the new results, users will see both the answers they’re looking for and new communities related to that search, hopefully helping them dive deeper into the site. More