Reddit announced in 2026 that it has developed spam-detection tools powered by large language models (LLMs) — the same technology that has made it easier for bad actors to flood platforms with bot-generated content in the first place.
According to Reddit, the platform blocks 23 million spam views per day and catches approximately 25,000 new spam posts and comments daily. The company says its updated tools reduced users’ exposure to spam by 20% from January to March 2026 compared with the prior three months.
“We leverage LLMs to catch the highly subtle, coordinated patterns of fake behavior and artificial hype that older systems once missed,” Reddit wrote in a blog post. While social platforms have built automated spam-reduction tools for years, Reddit says the LLM-based approach is catching spam at a higher rate than previous systems.
The development reflects a broader challenge facing online platforms: as powerful AI tools become more accessible, spam and bot content have grown harder to contain using traditional methods. Reddit’s approach of using AI to counter AI-generated spam is an acknowledgment that older detection systems are no longer sufficient on their own.
Other platforms are handling AI-generated content differently. YouTube, Meta, and Instagram allow users to post AI-generated content provided they disclose it, while TikTok is testing a feature that lets users control how much AI-generated content appears in their feeds.
Faster detection of AI-generated content could also help platforms flag other policy violations, such as hate speech, more quickly. However, platform experts have cautioned that AI content moderation must be paired with human moderation to achieve the most effective results.
Source: TechCrunch