video_url 400 on Sume: edit is supported only by Omni Flash 1.1

A video_url on any other model returns 400 on the Sume Video Router. Which models take a source video, and how to pick one for your edit.

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The error says video_url (edit) is supported only by model gemini-omni-flash-1.1. It means you sent a prompt-driven edit to a model that has no edit mode. On the Sume Video Router, only gemini-omni-flash-1.1 rewrites a clip from a prompt. Other video-in routes exist, but they use different fields and do different jobs.

Fields that look alike

Video inputs on the Sume Video Router (read 2026-10-03)
FieldModelWhat it does
video_url (edit)gemini-omni-flash-1.1Applies the prompt to your clip
video_url + reference_image_urlshiggsfield-genjutsuMotion transfer onto 1 to 8 reference images
video_url + reference_image_urlsh3-max-recastSwaps people in the source for 1 to 4 photos
reference_video_urlsmodels that list video referencesGuides a new clip; not an edit of yours

How to fix the call

Decide whether you want to change a clip or create a new one inspired by it. Changing: use Omni Flash edit with a source of 10 seconds or less. Person swap or motion transfer: use the model built for it. New clip guided by footage: use reference_video_urls on a model that lists them, and check the model list first.

Also note the error on mixing fields: a video_url edit cannot carry frame or reference fields in the same request.

Sources

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