Researchers: China’s TikTok Boosts Pro-Mamdani Content in Algorithm
Researchers say they found that China’s TikTok “systematically boosts” content using in favor of Socialist New York City mayoral candidate Zohran Mamdani and against former NYC Mayor Andrew Cuomo (D) using its content algorithm. The team asserts that this goes beyond simple bias into a new area, “algorithmic steering.”
“Our new research suggests TikTok’s algorithm systematically boosts pro-Mamdani and anti-Cuomo content in NYC’s mayoral race,” Yehonatan Dodeles, the CTO of Spring AI — an open-source app framework for artificial intelligence engineering — announced in a Tuesday X post. The research report has been published to Medium by Dodeles.
Our new research suggests TikTok’s algorithm systematically boosts pro-Mamdani and anti-Cuomo content in NYC’s mayoral race.
This analysis was done by Spring AI. the company uncovers the hidden mechanics of social media algorithms to defend democracies from weaponized AI.
— Yehonatan Dodeles (@YADodeles) October 21, 2025
“This analysis was done by Spring AI,” Dodeles continued, adding that “the company uncovers the hidden mechanics of social media algorithms to defend democracies from weaponized AI.”
“Based on deep reverse-engineering of TikTok’s recommendation system and representative data (real & synthetic users), we built an AI model that measures when videos get more exposure than they should. We call these ‘Excessive Publicity’ videos,” Dodeles explained in a follow-up X post.
The software engineer went on to say that, across all videos, roughly 17 percent “show this kind of non-organic boost,” adding that his team’s model “correctly flagged” 76.4 percent after testing known paid ads, “confirming it works.”
3/8
Across all videos, about 17 % show this kind of non-organic boost.When we tested on known paid ads, our model correctly flagged 76.4 % – confirming it works.
In short: it spots hidden promotion. ⚙️📈
— Yehonatan Dodeles (@YADodeles) October 21, 2025
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