Reddit has rolled out large language models to spot coordinated inauthentic behavior the moment an account is created, targeting what the company calls "highly subtle, coordinated patterns of fake behavior and artificial hype." The automated systems now block 23 million spam views daily, remove roughly 25,000 posts and comments per day, and revoke nearly two million inauthentic votes each day. Between January and March 2026, user exposure to spam dropped 20 percent compared with the prior quarter, while the window from detection to enforcement has shrunk to under five seconds, cutting harmful-content exposure by more than 40 percent.

The platform also added a humanity-verification step for suspicious automated accounts. Beyond spam, the models now scan all English text for hate and violence, with additional language coverage planned. The move marks a pragmatic shift for a site that previously clashed with AI: last year, University of Zurich researchers were caught running unauthorized AI-comment experiments in r/changemyview, and Reddit introduced a licensing protocol to charge AI firms for scraping its data.

Reddit still embraces the technology on its own terms, recently launching the Reddit Answers search feature powered by its own models. By turning LLMs inward, the company aims to preserve the authenticity that differentiates its communities from synthetic feeds elsewhere.