https://www.wired.com/story/chatbot-censorship-china-freedom-house/

"When you ask ChatGPT “What happened in China in 1989?” the bot describes how the Chinese army massacred thousands of pro-democracy protesters in Tiananmen Square. But ask the same question to Ernie and you get the simple answer that it does not have “relevant information.” That’s because Ernie is an AI chatbot developed by the China-based company Baidu."

I think they're both censorious though.