In a major escalation of tensions between social media platforms and artificial intelligence companies, Reddit has filed a copyright infringement lawsuit against Perplexity AI, accusing the San Francisco-based startup of illegally scraping its vast database of user-generated posts.

The lawsuit, filed in a New York federal court on Wednesday, claims that Perplexity and its partners harvested Reddit’s copyrighted material without consent to train their AI systems. This case joins a growing wave of legal battles challenging how AI firms collect and use online data.

Alongside Perplexity, Reddit also named three additional entities in the suit — Lithuanian data firm Oxylabs, Texas-based SerpApi, and AWMProxy, which Reddit described as a “former Russian botnet.” According to the complaint, the

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