Reddit's AI Catches 25,000 Marketing Spam Posts a Day in Q1

Reddit says its own AI is now catching about 25,000 spammy posts and comments per day, and that the amount of that content users actually see is down roughly 20% year on year in the first quarter of 2026. Those are the numbers the company gave Bloomberg, and the interesting part is not the size of the pile, it is what the pile is: not the old fashioned crypto and pill spam, but marketing content specifically engineered so that ChatGPT and Gemini will quote it back as if it were an authentic Reddit thread.

That targeting exists because of Reddit's own deals. OpenAI and Alphabet both license Reddit content to feed their chatbots, which means a well placed post on the right subreddit can quite literally become a sentence in someone's ChatGPT answer. A cottage industry has grown up around exploiting that pipe. Bloomberg names ReachLLM, a startup founded by Shanzila Ahmed that helps brands seed Reddit content aimed at getting cited by chatbots, sometimes within a day of posting, though Reddit has already been pulling some of those posts back down. The term of art for the practice is 'generative engine optimization', and it is roughly what SEO was in the early Google years, except the search engine is now a language model.

Why this matters if you are not Reddit: an LLM's answer is only as trustworthy as the corpus it draws on, and that corpus is under active manipulation. Reddit's counter is to fight LLMs with LLMs, using large language models to spot the subtle coordinated patterns that older rule-based filters missed. But the company's own numbers quietly confirm the limit of that approach. Community moderators, meaning volunteers, still accounted for more than 52% of post and comment removals from July 2025 through December 2025.

The honest caveat is that we only have Reddit's side of this. The reporting does not tell us the false positive rate of the new systems, how much manipulated content still leaks through and gets cited before takedown, or whether OpenAI and Google are on the hook to re-filter anything Reddit later removes. Those are the numbers that would tell you whether this is a real fix or a talking point.

The forward looking bit worth watching is Reddit's leverage. If it becomes the credible upstream cleaner for chatbot data, its position at the next licensing renewal with OpenAI and Alphabet gets stronger, and the venture money already flowing into generative engine optimization firms suggests the fight on the other side of the wall is not close to settled.