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SearchFree tier
Mainland China: not confirmed
Research assistant that finds papers and extracts data from academic literature.
可检索论文并从学术文献中抽取数据的研究助手。
Marked “not confirmed” because NavBoth only checked public pages and did not verify access from mainland China.
SearchFree tier
Search tool that answers from research papers and shows the academic sources it used.
Mainland China: not confirmed
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Answer engine that searches the web and shows citations beside the reply, with a free tier and a paid Pro plan.
Mainland China: not confirmed
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AI search and chat assistant that answers with citations, with free and Pro plans listed publicly.
Mainland China: not confirmed
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