Reddit has filed a lawsuit against Perplexity AI and three other companies, accusing them of scraping data from the Reddit site without authorization. According to the lawsuit filed Wednesday in Manhattan federal court, the data scraping companies Oxylabs UAB, AWMProxy, and SerpApi collected Reddit data through Google search results with the intention of reselling it. The lawsuit alleges that Perplexity purchased the data from at least one of the companies. With the rise of AI models that rely on large amounts of data to train and deliver relevant results, Reddit's growing data repository has become a valuable commodity. Reddit has signed agreements with OpenAI and Alphabet to license the use of Reddit data for training, but has also taken legal action against some companies that do not have formal agreements with it. Earlier this year, Reddit filed a similar data scraping lawsuit against Anthropic in San Francisco court.