But ByteDance has been quietly marketing Cici to users in the United Kingdom, Mexico, and several Southeast Asian countries. Meta’s Ad Library shows that Cici was running over 400 different ads in Mexico in October, most of which boasted about the model’s ability to solve math problems and the fact that it’s completely free to use. It’s also currently running ad campaigns in the UK and Philippines. On TikTok, creators in those countries have shared dozens of sponsored videos about Cici using hashtags like #ciciai.