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iFlytek Spark vs Doubao: catalog facts
iFlytek Spark	Doubao
Free The homepage lists no prices for the assistant.	Free Free to use; video generation requires logging in.
Web	Web
Handles questions, reasoning, maths and code Natural conversational interface	Covers chat, writing, translation and coding help Includes Seedance 2.0 video generation at no cost
Interface is in Chinese Little public information on plans or limits	Interface is in Chinese Hosted service from ByteDance, so conversations are processed on its servers
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 24, 2026

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