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Baidu Search vs Sogou Search: catalog facts
Baidu Search	Sogou Search
Free Free to use; an account is optional for signing in.	Free Free to use, supported by advertising.
Web	Web
Large index of Chinese-language web pages Linked news, maps, video, forum and academic search	Searches WeChat official account articles Dedicated Zhihu, dictionary and translation search
Interface is in Chinese only Results reflect Chinese content regulations	Interface only in Chinese Queries capped at 100 Chinese characters
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.