Genjutsu reference images: 30 on Higgsfield, 1 to 8 on Sume

Higgsfield's Genjutsu page says up to 30 reference images. Sume's Genjutsu Motion Transfer row takes 1 to 8: at least one is required and nine or more are rejected. If your character sheet has more than eight images, choose eight before you send the request.

Higgsfield's number is from its Genjutsu page, read 2026-09-30; Sume's is from the catalog in code and the Video generation docs.

How should I budget eight slots?

Sume's docs do not rank images, so this split is a practical suggestion, not a documented rule.

How do I send the images on Sume?

On POST /v1/video-router/generate, send video_url plus reference_image_urls. On POST /v1/videos, put exactly one video and 1 to 8 images in input_references. The provider adapter repeats the rule with the error "Genjutsu requires 1–8 reference image URLs." The image URLs must be public HTTPS URLs.

What if one element drifts?

Swap in a clearer image of that element and run again, dropping a near-duplicate to stay at eight. Reference caps for another model are in Seedance 2.5 reference limits.

Can I split a bigger set across runs?

Yes, but each request is its own job with its own cost, so two runs give two separate outputs, not one merged clip.