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ChatFree tier
Mainland China: not confirmed
Quora's chat app that lets you talk to many AI bots in one place, with free messages and paid plans.
Quora 的聊天应用，可在同一处与多种 AI 机器人对话，有免费消息与付费方案。
Marked “not confirmed” because NavBoth only checked public pages and did not verify access from mainland China.
ChatFree tier
Zhipu AI's consumer assistant for chat, documents, and slides.
Mainland China: offered
View listingChatFree tierEditor's pick
OpenAI's conversational assistant for drafting, coding help, and working through questions. Free and paid plans are both listed on the public site.
Mainland China: not offered
View listingChatFree tierEditor's pick
Anthropic's assistant for long documents, writing, and analysis, with free access limits and paid plans.
Mainland China: not offered
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