How long can Gemini Omni Flash generate in one pass?

Roughly 10 seconds per generation. Longer cuts need segmented generation plus stitching — the 20-second ad in this article was made as two 10-second segments, with the prompt explicitly requiring the last frame to connect naturally to the next segment.

Does Omni Flash keep characters consistent across shots?

With a full storyboard provided as visual reference, the character, outfit, store, and drink cup stayed basically consistent across both 10-second segments. Free-form text-to-video without a storyboard reference drifts much more — face swaps and outfit changes happen often.

Why generate a storyboard with Image 2 first instead of direct text-to-video?

The storyboard locks in the character's look, outfit, store visuals, and the composition and action flow of all 6 shots up front. With direct text-to-video, the model decides these variables itself — the more freedom, the more face swaps, scene drift, and broken shots. The storyboard makes directorial intent explicit.

Will the seam between the two segments jump?

A slight jump can happen. In this article the first segment's prompt explicitly ends on the state 'order paid, staff about to make the drink'. If the seam still jumps, trim 0.2–0.5s off the end of segment one and the start of segment two — no complex editing needed.

Gemini Omni Flash Hands-On: One Storyboard Image to a 20-Second Ad (Multi-Shot Continuity Test)

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