Higgsfield pages state 30 s / 1080p / 50 references (Seedance 2.5 guide, Cinema Studio 4.0), 15 s / 4K (Seedance 4K tutorials), 15 s max (Supercomputer guide) and 9 or 9+3+3 references (Seedance 2.0 tutorial). Which values hold for which surface and plan?
Why this is still open: The pages disagree and none carries a verifiable spec; needs a live check or a model owner's documentation.