AI Services
ByteDance's (TikTok's parent) chat AI, one of the most-used in China, powered by its Seed model family.
Models
Seed 2.1
Key features
Natural voice chat
Known for remarkably natural Chinese voice conversations.
Seed model family
Built on ByteDance's Seed models, with image and video generation folded in.
Massive user base
One of China's most-used AI apps, shipping features rapidly.
Tier lists featuring this service
Categories aggregate their whole subtree; threads count their own votes. Tap a row to open the tier list.
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Arena benchmark standings
arena.ai (formerly LMArena) blind-battle results converted into tiers for reference. See each category page for the conversion rules