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ChatFree tier
Mainland China: not confirmed
Cohere's chat workspace for exploring Command models, with free and paid API access.
Cohere 用于体验 Command 模型的聊天工作区，有免费与付费 API。
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
View listing