Reddit Sues Perplexity and Three Companies for Allegedly Stealing Content to Train AI Models

Oct 23, 2025
The Verge
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Summary

Reddit files lawsuit against AI search engine Perplexity and three data-scraping companies, alleging they illegally circumvented protections to steal Reddit content for training AI models without permission, despite cease-and-desist warnings.

Key Points

  • Reddit sues Perplexity and three data-scraping companies for allegedly circumventing protections to steal Reddit content for AI training without permission
  • Reddit claims Perplexity continues using Reddit data despite a May 2024 cease-and-desist letter, with citations actually increasing after the warning
  • The lawsuit highlights Reddit's strategy of monetizing its human-generated content through paid AI partnerships while pursuing legal action against companies that scrape data without agreements

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