A side-by-side comparison of Seedance 2.0 and Seedance 2.0 Fast: input/output pricing, capabilities and available endpoints, served live from 国际云宝子（Ai）. Both are reachable with the same API key.
Yes. Both are available on 国际云宝子（Ai） through one API key and the same OpenAI-compatible endpoint — switching means changing the model field from "dreamina-seedance-2-0-260128" to "dreamina-seedance-2-0-fast-260128", nothing else.
Both are available on 国际云宝子（Ai） under one API key — switching between them means changing the model field and nothing else, so you can use each where it fits rather than picking one.