Reddit’s presence in ChatGPT citations dropped from 3.8% to 0.5% within a few days.
OpenAI triggered the collapse through an unannounced technical change to its web search methodology. The update now targets specific domains more directly.
This shift highlights Reddit’s vulnerability to external platform dependencies for content distribution and traffic. The visibility drop occurred the same week Reddit joined the S&P 500.
OpenAI’s changes present new challenges for Reddit’s generative engine optimization and future growth prospects.