Reddit is replacing Automod with AI that reads intent, not keywords. Old Reddit’s days are numbered.

Reddit announced plans to replace core moderation infrastructure that has run the platform for years. The most significant change: Rules Hub, a new moderation system that uses large language models to evaluate whether posts and comments match the intent of a community rule, will eventually replace many of Automod’s enforcement workflows. Unlike Automod, which relies on exact keyword and pattern matching, Rules Hub can handle nuance, natural language, and edge cases. It has been testing in over 700 communities and will now be available to all newly created ones.

The platform is also restricting public API access further. Third-party apps must transition to Reddit’s Developer Platform, and new API requests will be gradually restricted. Reddit launched a $1 million migration programme to help developers move. This follows the 2023 API pricing changes that killed popular third-party apps like Apollo and triggered a site-wide protest. The new restrictions complete that transition: all trusted automation will eventually run within Reddit’s own ecosystem.

Old Reddit, the 21-year-old legacy desktop interface, will face “complex follow-up steps” beyond the current login requirement. Reddit framed the changes as anti-scraping measures, but the language signals that Old Reddit’s unrestricted access is ending. Google replaced its traditional search with AI summaries and faced a backlash from users who preferred the old version. Reddit is making the same kind of forced migration, replacing a system users chose with one the platform controls.

Reddit now has over 130 million daily visitors across 100,000+ communities. The LLM-powered moderation is the most technically interesting change: if Rules Hub works as described, moderators set rules in plain language and the AI enforces them contextually, reducing the regex-writing and keyword-list maintenance that Automod required. Wharton researchers found people accept AI outputs 80% of the time, and the question for Reddit is whether moderators will trust an LLM to interpret their rules correctly, or whether AI-powered moderation creates a new class of false positives that are harder to understand and appeal than a keyword match.