HelixWorld 768x512 at 24 fps vs a 720p API video: what differs

HelixWorld renders 768x512 video at 24 frames per second with spatial stereo sound, in real time on one NVIDIA H800, according to its GitHub README. That is a 3:2 landscape frame, smaller than 1280x720. Gemini Omni Flash 1.1 on Sume renders 16:9 or 9:16 at 360p, 720p, 1080p or 4K for 3 to 10 seconds, with synced audio. They are different tools, and neither replaces the other.

Side by side

The README lists the outputs as MP4 files with integrated spatial audio, and the inputs as a first-frame image, text prompts, and camera actions. The two columns below set that beside the Sume row. The Sume column is from the Video Router docs, and the HelixWorld column is from the README.

Picking one

If you need an interactive session where a person steers the camera, run HelixWorld yourself and check its license first. If you need a finished MP4 at a fixed ratio for an ad or a short, use a job API. Gemini Omni Flash 1.1 at 720p is $0.125 a second on Sume, which is the provider list times 1.25.

One caution

Do not compare the frame rate directly. The Sume API exposes resolution, duration and aspect ratio, and not a frame-rate field for this row, so a 24 fps claim about an Omni clip is not something the catalog gives you. Use video-inspect on a finished clip to read its real properties.