Fun fact: Hacker News is canonically banned in China, but I'm still talking here. There are plenty of techs to work around region block. The incentive to report somebody is comically called '50w' (500k CNY) and no one gives a shit about it in real life.
Simple trick: Use an agentic tool like Pi or OpenCode that allows you to switch models. First do some chats with DeepSeek or GLM who shows full thinking traces, then switch to Claude or GPT and it's more likely to show full thinking traces.
Fun fact: Right now I'm using Fable with a price of less than 1 CNY = 1 USD. I don't think Anthropic or OpenAI has any technical advantage in subscription engineering.