There are so many Chinese tech companies building models and someone there has to be managing the list of forbidden topics. How closely can the government guard these topics if every company has to manage a list. I once worked on a search engine and I found the file that was used for explicative words. I didn't understand more than half of what was in there.
The government has a massive list of banned things/words which updates hourly. All ICP companies in China must strictly follow the list and assign dedicated personnel for receiving and applying all the updates. It has became a huge burden for companies, which effectively kills all low budget startups.