ChatGPT
Freemium Blocked in mainland China
OpenAI's general-purpose AI chat product.
In brief One of the default starting points for general chat. The free plan covers everyday Q&A; higher limits and models are on paid plans.
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Chat and search
General Q&A and sourced search — get a clear answer before you start the work.This category lists 3 tools. Official-site access from mainland China was tested on 2026-11-10 from multiple speed-test nodes. See each entry's label for the result.
Claude
Freemium Opens directly
Anthropic's general-purpose AI chat and collaboration product.
In brief For long documents and reasoning tasks, it is often treated as one of the first choices among chat tools. The free plan has usage caps.
Grok
Freemium Blocked in mainland China
xAI's AI chat product, available on the web and in an app.
In brief The official site says you can try it for free on the web and in the app. Higher limits require upgrading to SuperGrok.